/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 19:30:14,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 19:30:14,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 19:30:14,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 19:30:14,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 19:30:14,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 19:30:14,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 19:30:14,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 19:30:14,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 19:30:14,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 19:30:14,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 19:30:14,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 19:30:14,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 19:30:14,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 19:30:14,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 19:30:14,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 19:30:14,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 19:30:14,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 19:30:14,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 19:30:14,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 19:30:14,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 19:30:14,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 19:30:14,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 19:30:14,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 19:30:14,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 19:30:14,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 19:30:14,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 19:30:14,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 19:30:14,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 19:30:14,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 19:30:14,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 19:30:14,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 19:30:14,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 19:30:14,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 19:30:14,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 19:30:14,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 19:30:14,807 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2021-03-25 19:30:14,836 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 19:30:14,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 19:30:14,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 19:30:14,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 19:30:14,837 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 19:30:14,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 19:30:14,837 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 19:30:14,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 19:30:14,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 19:30:14,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 19:30:14,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 19:30:14,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 19:30:14,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 19:30:14,838 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 19:30:14,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 19:30:14,838 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 19:30:14,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 19:30:14,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 19:30:14,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 19:30:14,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 19:30:14,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 19:30:14,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 19:30:14,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 19:30:14,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 19:30:14,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 19:30:14,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 19:30:14,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 19:30:14,839 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 19:30:14,839 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 19:30:14,839 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 19:30:15,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 19:30:15,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 19:30:15,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 19:30:15,107 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-25 19:30:15,107 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-25 19:30:15,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl [2021-03-25 19:30:15,311 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl' [2021-03-25 19:30:15,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 19:30:15,375 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-25 19:30:15,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 19:30:15,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 19:30:15,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 19:30:15,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:30:15" (1/1) ... [2021-03-25 19:30:15,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:30:15" (1/1) ... [2021-03-25 19:30:15,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 19:30:15,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 19:30:15,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 19:30:15,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 19:30:15,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:30:15" (1/1) ... [2021-03-25 19:30:15,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:30:15" (1/1) ... [2021-03-25 19:30:15,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:30:15" (1/1) ... [2021-03-25 19:30:15,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:30:15" (1/1) ... [2021-03-25 19:30:15,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:30:15" (1/1) ... [2021-03-25 19:30:15,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:30:15" (1/1) ... [2021-03-25 19:30:15,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:30:15" (1/1) ... [2021-03-25 19:30:15,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 19:30:15,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 19:30:15,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 19:30:15,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 19:30:15,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:30:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 19:30:15,453 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-25 19:30:15,453 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-25 19:30:15,454 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-25 19:30:15,455 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-25 19:30:15,455 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-25 19:30:15,455 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-25 19:30:15,455 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-25 19:30:15,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 19:30:15,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 19:30:15,455 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-25 19:30:15,455 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-25 19:30:15,455 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-25 19:30:15,456 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 19:30:15,639 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 19:30:15,639 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-25 19:30:15,640 INFO L202 PluginConnector]: Adding new model lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:30:15 BoogieIcfgContainer [2021-03-25 19:30:15,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 19:30:15,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 19:30:15,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 19:30:15,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 19:30:15,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:30:15" (1/2) ... [2021-03-25 19:30:15,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327cf47a and model type lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 07:30:15, skipping insertion in model container [2021-03-25 19:30:15,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:30:15" (2/2) ... [2021-03-25 19:30:15,644 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.wvr.bpl [2021-03-25 19:30:15,664 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 19:30:15,667 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 19:30:15,667 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 19:30:15,711 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-25 19:30:15,728 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-25 19:30:15,754 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 19:30:15,754 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 19:30:15,755 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 19:30:15,755 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 19:30:15,755 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 19:30:15,755 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 19:30:15,755 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 19:30:15,755 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 19:30:15,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 106 flow [2021-03-25 19:30:15,803 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-03-25 19:30:15,804 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 19:30:15,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 38 events. 0/38 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 19:30:15,805 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 106 flow [2021-03-25 19:30:15,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 36 transitions, 90 flow [2021-03-25 19:30:15,810 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:15,822 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 36 transitions, 90 flow [2021-03-25 19:30:15,826 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 36 transitions, 90 flow [2021-03-25 19:30:15,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 36 transitions, 90 flow [2021-03-25 19:30:15,841 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-03-25 19:30:15,841 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 19:30:15,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 36 events. 0/36 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 19:30:15,844 INFO L142 LiptonReduction]: Number of co-enabled transitions 412 [2021-03-25 19:30:16,154 INFO L154 LiptonReduction]: Checked pairs total: 992 [2021-03-25 19:30:16,154 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-25 19:30:16,155 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 346 [2021-03-25 19:30:16,163 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-03-25 19:30:16,163 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 19:30:16,164 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:16,164 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:16,164 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:16,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:16,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1305402496, now seen corresponding path program 1 times [2021-03-25 19:30:16,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:16,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096448397] [2021-03-25 19:30:16,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:16,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:16,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:16,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:16,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:16,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:16,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:16,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:16,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096448397] [2021-03-25 19:30:16,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:16,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 19:30:16,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442115985] [2021-03-25 19:30:16,292 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 19:30:16,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:16,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 19:30:16,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 19:30:16,301 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 53 [2021-03-25 19:30:16,303 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 66 flow. Second operand has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,303 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:16,303 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 53 [2021-03-25 19:30:16,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:16,388 INFO L129 PetriNetUnfolder]: 15/89 cut-off events. [2021-03-25 19:30:16,388 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-25 19:30:16,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 89 events. 15/89 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 344 event pairs, 1 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 130. Up to 23 conditions per place. [2021-03-25 19:30:16,391 INFO L132 encePairwiseOnDemand]: 46/53 looper letters, 12 selfloop transitions, 11 changer transitions 2/42 dead transitions. [2021-03-25 19:30:16,391 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 42 transitions, 152 flow [2021-03-25 19:30:16,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 19:30:16,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 19:30:16,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 386 transitions. [2021-03-25 19:30:16,400 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8092243186582809 [2021-03-25 19:30:16,400 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 386 transitions. [2021-03-25 19:30:16,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 386 transitions. [2021-03-25 19:30:16,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:16,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 386 transitions. [2021-03-25 19:30:16,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 42.888888888888886) internal successors, (386), 9 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 53.0) internal successors, (530), 10 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,410 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 53.0) internal successors, (530), 10 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,411 INFO L185 Difference]: Start difference. First operand has 34 places, 24 transitions, 66 flow. Second operand 9 states and 386 transitions. [2021-03-25 19:30:16,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 42 transitions, 152 flow [2021-03-25 19:30:16,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 42 transitions, 140 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-25 19:30:16,415 INFO L241 Difference]: Finished difference. Result has 40 places, 34 transitions, 119 flow [2021-03-25 19:30:16,416 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=119, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2021-03-25 19:30:16,416 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 6 predicate places. [2021-03-25 19:30:16,416 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:16,417 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 34 transitions, 119 flow [2021-03-25 19:30:16,417 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 34 transitions, 119 flow [2021-03-25 19:30:16,417 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 119 flow [2021-03-25 19:30:16,423 INFO L129 PetriNetUnfolder]: 4/58 cut-off events. [2021-03-25 19:30:16,423 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 19:30:16,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 58 events. 4/58 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 164 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 88. Up to 9 conditions per place. [2021-03-25 19:30:16,424 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-25 19:30:16,469 INFO L154 LiptonReduction]: Checked pairs total: 702 [2021-03-25 19:30:16,469 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 19:30:16,470 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-25 19:30:16,470 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 118 flow [2021-03-25 19:30:16,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,471 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:16,471 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:16,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 19:30:16,471 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:16,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:16,472 INFO L82 PathProgramCache]: Analyzing trace with hash 620299272, now seen corresponding path program 2 times [2021-03-25 19:30:16,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:16,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753065608] [2021-03-25 19:30:16,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:16,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:16,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:16,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:16,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:16,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:16,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 19:30:16,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:16,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:16,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753065608] [2021-03-25 19:30:16,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:16,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 19:30:16,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793700684] [2021-03-25 19:30:16,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 19:30:16,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:16,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 19:30:16,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 19:30:16,568 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 55 [2021-03-25 19:30:16,568 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 118 flow. Second operand has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 7 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,568 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:16,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 55 [2021-03-25 19:30:16,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:16,687 INFO L129 PetriNetUnfolder]: 79/300 cut-off events. [2021-03-25 19:30:16,687 INFO L130 PetriNetUnfolder]: For 15/17 co-relation queries the response was YES. [2021-03-25 19:30:16,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 300 events. 79/300 cut-off events. For 15/17 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1894 event pairs, 8 based on Foata normal form. 2/285 useless extension candidates. Maximal degree in co-relation 578. Up to 48 conditions per place. [2021-03-25 19:30:16,691 INFO L132 encePairwiseOnDemand]: 46/55 looper letters, 19 selfloop transitions, 17 changer transitions 0/60 dead transitions. [2021-03-25 19:30:16,691 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 60 transitions, 244 flow [2021-03-25 19:30:16,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 19:30:16,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 19:30:16,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 352 transitions. [2021-03-25 19:30:16,694 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7111111111111111 [2021-03-25 19:30:16,695 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 352 transitions. [2021-03-25 19:30:16,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 352 transitions. [2021-03-25 19:30:16,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:16,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 352 transitions. [2021-03-25 19:30:16,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.111111111111114) internal successors, (352), 9 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 55.0) internal successors, (550), 10 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,698 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 55.0) internal successors, (550), 10 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,698 INFO L185 Difference]: Start difference. First operand has 37 places, 33 transitions, 118 flow. Second operand 9 states and 352 transitions. [2021-03-25 19:30:16,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 60 transitions, 244 flow [2021-03-25 19:30:16,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 60 transitions, 242 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 19:30:16,701 INFO L241 Difference]: Finished difference. Result has 50 places, 50 transitions, 232 flow [2021-03-25 19:30:16,701 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=232, PETRI_PLACES=50, PETRI_TRANSITIONS=50} [2021-03-25 19:30:16,701 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 16 predicate places. [2021-03-25 19:30:16,701 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:16,702 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 50 transitions, 232 flow [2021-03-25 19:30:16,702 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 50 transitions, 232 flow [2021-03-25 19:30:16,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions, 232 flow [2021-03-25 19:30:16,711 INFO L129 PetriNetUnfolder]: 43/215 cut-off events. [2021-03-25 19:30:16,712 INFO L130 PetriNetUnfolder]: For 69/70 co-relation queries the response was YES. [2021-03-25 19:30:16,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 215 events. 43/215 cut-off events. For 69/70 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1253 event pairs, 1 based on Foata normal form. 1/211 useless extension candidates. Maximal degree in co-relation 426. Up to 36 conditions per place. [2021-03-25 19:30:16,713 INFO L142 LiptonReduction]: Number of co-enabled transitions 392 [2021-03-25 19:30:16,747 INFO L154 LiptonReduction]: Checked pairs total: 406 [2021-03-25 19:30:16,747 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 19:30:16,747 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-03-25 19:30:16,748 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 50 transitions, 233 flow [2021-03-25 19:30:16,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 7 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,748 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:16,748 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:16,748 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 19:30:16,748 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:16,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:16,749 INFO L82 PathProgramCache]: Analyzing trace with hash -273826784, now seen corresponding path program 1 times [2021-03-25 19:30:16,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:16,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190000374] [2021-03-25 19:30:16,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:16,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:16,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:16,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:16,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190000374] [2021-03-25 19:30:16,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:16,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 19:30:16,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344079637] [2021-03-25 19:30:16,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 19:30:16,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:16,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 19:30:16,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 19:30:16,763 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 56 [2021-03-25 19:30:16,763 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 50 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,763 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:16,763 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 56 [2021-03-25 19:30:16,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:16,778 INFO L129 PetriNetUnfolder]: 40/211 cut-off events. [2021-03-25 19:30:16,778 INFO L130 PetriNetUnfolder]: For 73/74 co-relation queries the response was YES. [2021-03-25 19:30:16,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 211 events. 40/211 cut-off events. For 73/74 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1236 event pairs, 3 based on Foata normal form. 2/206 useless extension candidates. Maximal degree in co-relation 423. Up to 33 conditions per place. [2021-03-25 19:30:16,779 INFO L132 encePairwiseOnDemand]: 53/56 looper letters, 3 selfloop transitions, 5 changer transitions 0/49 dead transitions. [2021-03-25 19:30:16,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 49 transitions, 243 flow [2021-03-25 19:30:16,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 19:30:16,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 19:30:16,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2021-03-25 19:30:16,780 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8392857142857143 [2021-03-25 19:30:16,780 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 141 transitions. [2021-03-25 19:30:16,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 141 transitions. [2021-03-25 19:30:16,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:16,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 141 transitions. [2021-03-25 19:30:16,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,781 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,781 INFO L185 Difference]: Start difference. First operand has 50 places, 50 transitions, 233 flow. Second operand 3 states and 141 transitions. [2021-03-25 19:30:16,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 49 transitions, 243 flow [2021-03-25 19:30:16,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 243 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 19:30:16,784 INFO L241 Difference]: Finished difference. Result has 53 places, 49 transitions, 244 flow [2021-03-25 19:30:16,784 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2021-03-25 19:30:16,784 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 19 predicate places. [2021-03-25 19:30:16,784 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:16,784 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 49 transitions, 244 flow [2021-03-25 19:30:16,784 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 49 transitions, 244 flow [2021-03-25 19:30:16,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 49 transitions, 244 flow [2021-03-25 19:30:16,792 INFO L129 PetriNetUnfolder]: 28/172 cut-off events. [2021-03-25 19:30:16,792 INFO L130 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2021-03-25 19:30:16,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 172 events. 28/172 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 951 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 341. Up to 27 conditions per place. [2021-03-25 19:30:16,794 INFO L142 LiptonReduction]: Number of co-enabled transitions 360 [2021-03-25 19:30:16,826 INFO L154 LiptonReduction]: Checked pairs total: 365 [2021-03-25 19:30:16,826 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 19:30:16,827 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-03-25 19:30:16,827 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 246 flow [2021-03-25 19:30:16,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,827 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:16,828 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:16,828 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 19:30:16,828 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:16,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:16,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1677545982, now seen corresponding path program 2 times [2021-03-25 19:30:16,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:16,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869285454] [2021-03-25 19:30:16,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:16,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:16,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:16,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:16,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:16,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:16,940 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-25 19:30:16,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:16,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:16,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:16,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:16,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869285454] [2021-03-25 19:30:16,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:16,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 19:30:16,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086029581] [2021-03-25 19:30:16,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 19:30:16,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:16,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 19:30:16,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 19:30:16,956 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 57 [2021-03-25 19:30:16,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 246 flow. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:16,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:16,957 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 57 [2021-03-25 19:30:16,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:17,142 INFO L129 PetriNetUnfolder]: 116/462 cut-off events. [2021-03-25 19:30:17,143 INFO L130 PetriNetUnfolder]: For 448/518 co-relation queries the response was YES. [2021-03-25 19:30:17,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1293 conditions, 462 events. 116/462 cut-off events. For 448/518 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3411 event pairs, 7 based on Foata normal form. 21/472 useless extension candidates. Maximal degree in co-relation 1211. Up to 78 conditions per place. [2021-03-25 19:30:17,146 INFO L132 encePairwiseOnDemand]: 48/57 looper letters, 40 selfloop transitions, 21 changer transitions 0/85 dead transitions. [2021-03-25 19:30:17,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 85 transitions, 572 flow [2021-03-25 19:30:17,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 19:30:17,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 19:30:17,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 356 transitions. [2021-03-25 19:30:17,147 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6939571150097466 [2021-03-25 19:30:17,147 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 356 transitions. [2021-03-25 19:30:17,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 356 transitions. [2021-03-25 19:30:17,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:17,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 356 transitions. [2021-03-25 19:30:17,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.55555555555556) internal successors, (356), 9 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,149 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,149 INFO L185 Difference]: Start difference. First operand has 53 places, 49 transitions, 246 flow. Second operand 9 states and 356 transitions. [2021-03-25 19:30:17,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 85 transitions, 572 flow [2021-03-25 19:30:17,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 85 transitions, 554 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 19:30:17,155 INFO L241 Difference]: Finished difference. Result has 65 places, 64 transitions, 412 flow [2021-03-25 19:30:17,155 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=412, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2021-03-25 19:30:17,155 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 31 predicate places. [2021-03-25 19:30:17,155 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:17,155 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 64 transitions, 412 flow [2021-03-25 19:30:17,155 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 64 transitions, 412 flow [2021-03-25 19:30:17,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 64 transitions, 412 flow [2021-03-25 19:30:17,176 INFO L129 PetriNetUnfolder]: 69/333 cut-off events. [2021-03-25 19:30:17,177 INFO L130 PetriNetUnfolder]: For 358/372 co-relation queries the response was YES. [2021-03-25 19:30:17,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 935 conditions, 333 events. 69/333 cut-off events. For 358/372 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2279 event pairs, 0 based on Foata normal form. 1/324 useless extension candidates. Maximal degree in co-relation 853. Up to 59 conditions per place. [2021-03-25 19:30:17,179 INFO L142 LiptonReduction]: Number of co-enabled transitions 484 [2021-03-25 19:30:17,187 INFO L154 LiptonReduction]: Checked pairs total: 182 [2021-03-25 19:30:17,187 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 19:30:17,188 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-25 19:30:17,191 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 412 flow [2021-03-25 19:30:17,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,191 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:17,191 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:17,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 19:30:17,191 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:17,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:17,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1997697432, now seen corresponding path program 1 times [2021-03-25 19:30:17,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:17,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504126843] [2021-03-25 19:30:17,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:17,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:17,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:17,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504126843] [2021-03-25 19:30:17,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:17,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 19:30:17,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130982335] [2021-03-25 19:30:17,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 19:30:17,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:17,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 19:30:17,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 19:30:17,280 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 57 [2021-03-25 19:30:17,280 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 412 flow. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,280 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:17,280 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 57 [2021-03-25 19:30:17,280 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:17,442 INFO L129 PetriNetUnfolder]: 133/523 cut-off events. [2021-03-25 19:30:17,442 INFO L130 PetriNetUnfolder]: For 1127/1280 co-relation queries the response was YES. [2021-03-25 19:30:17,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1724 conditions, 523 events. 133/523 cut-off events. For 1127/1280 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 3942 event pairs, 19 based on Foata normal form. 36/541 useless extension candidates. Maximal degree in co-relation 1626. Up to 88 conditions per place. [2021-03-25 19:30:17,446 INFO L132 encePairwiseOnDemand]: 47/57 looper letters, 39 selfloop transitions, 24 changer transitions 0/87 dead transitions. [2021-03-25 19:30:17,446 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 87 transitions, 709 flow [2021-03-25 19:30:17,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 19:30:17,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 19:30:17,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 355 transitions. [2021-03-25 19:30:17,447 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6920077972709552 [2021-03-25 19:30:17,447 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 355 transitions. [2021-03-25 19:30:17,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 355 transitions. [2021-03-25 19:30:17,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:17,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 355 transitions. [2021-03-25 19:30:17,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.44444444444444) internal successors, (355), 9 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,449 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,449 INFO L185 Difference]: Start difference. First operand has 65 places, 64 transitions, 412 flow. Second operand 9 states and 355 transitions. [2021-03-25 19:30:17,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 87 transitions, 709 flow [2021-03-25 19:30:17,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 87 transitions, 697 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-03-25 19:30:17,455 INFO L241 Difference]: Finished difference. Result has 77 places, 75 transitions, 585 flow [2021-03-25 19:30:17,456 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=585, PETRI_PLACES=77, PETRI_TRANSITIONS=75} [2021-03-25 19:30:17,456 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 43 predicate places. [2021-03-25 19:30:17,456 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:17,456 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 75 transitions, 585 flow [2021-03-25 19:30:17,456 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 75 transitions, 585 flow [2021-03-25 19:30:17,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 75 transitions, 585 flow [2021-03-25 19:30:17,479 INFO L129 PetriNetUnfolder]: 83/386 cut-off events. [2021-03-25 19:30:17,479 INFO L130 PetriNetUnfolder]: For 663/694 co-relation queries the response was YES. [2021-03-25 19:30:17,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1204 conditions, 386 events. 83/386 cut-off events. For 663/694 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2734 event pairs, 0 based on Foata normal form. 5/380 useless extension candidates. Maximal degree in co-relation 1112. Up to 67 conditions per place. [2021-03-25 19:30:17,482 INFO L142 LiptonReduction]: Number of co-enabled transitions 572 [2021-03-25 19:30:17,492 INFO L154 LiptonReduction]: Checked pairs total: 248 [2021-03-25 19:30:17,494 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 19:30:17,494 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-03-25 19:30:17,495 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 75 transitions, 585 flow [2021-03-25 19:30:17,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,495 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:17,496 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:17,497 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 19:30:17,497 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:17,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:17,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1757481222, now seen corresponding path program 2 times [2021-03-25 19:30:17,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:17,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040161238] [2021-03-25 19:30:17,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:17,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,565 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-25 19:30:17,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:17,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:17,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040161238] [2021-03-25 19:30:17,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:17,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 19:30:17,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120302916] [2021-03-25 19:30:17,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 19:30:17,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:17,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 19:30:17,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 19:30:17,577 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 57 [2021-03-25 19:30:17,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 75 transitions, 585 flow. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:17,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 57 [2021-03-25 19:30:17,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:17,719 INFO L129 PetriNetUnfolder]: 116/497 cut-off events. [2021-03-25 19:30:17,719 INFO L130 PetriNetUnfolder]: For 1469/1623 co-relation queries the response was YES. [2021-03-25 19:30:17,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1758 conditions, 497 events. 116/497 cut-off events. For 1469/1623 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3782 event pairs, 20 based on Foata normal form. 40/518 useless extension candidates. Maximal degree in co-relation 1649. Up to 81 conditions per place. [2021-03-25 19:30:17,722 INFO L132 encePairwiseOnDemand]: 47/57 looper letters, 39 selfloop transitions, 22 changer transitions 0/85 dead transitions. [2021-03-25 19:30:17,722 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 85 transitions, 767 flow [2021-03-25 19:30:17,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 19:30:17,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 19:30:17,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 354 transitions. [2021-03-25 19:30:17,724 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6900584795321637 [2021-03-25 19:30:17,724 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 354 transitions. [2021-03-25 19:30:17,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 354 transitions. [2021-03-25 19:30:17,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:17,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 354 transitions. [2021-03-25 19:30:17,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.333333333333336) internal successors, (354), 9 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,726 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,726 INFO L185 Difference]: Start difference. First operand has 77 places, 75 transitions, 585 flow. Second operand 9 states and 354 transitions. [2021-03-25 19:30:17,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 85 transitions, 767 flow [2021-03-25 19:30:17,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 85 transitions, 744 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-25 19:30:17,733 INFO L241 Difference]: Finished difference. Result has 85 places, 74 transitions, 607 flow [2021-03-25 19:30:17,733 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=607, PETRI_PLACES=85, PETRI_TRANSITIONS=74} [2021-03-25 19:30:17,733 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 51 predicate places. [2021-03-25 19:30:17,733 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:17,733 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 74 transitions, 607 flow [2021-03-25 19:30:17,733 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 74 transitions, 607 flow [2021-03-25 19:30:17,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 74 transitions, 607 flow [2021-03-25 19:30:17,755 INFO L129 PetriNetUnfolder]: 71/364 cut-off events. [2021-03-25 19:30:17,755 INFO L130 PetriNetUnfolder]: For 706/722 co-relation queries the response was YES. [2021-03-25 19:30:17,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 364 events. 71/364 cut-off events. For 706/722 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2613 event pairs, 0 based on Foata normal form. 2/357 useless extension candidates. Maximal degree in co-relation 1039. Up to 60 conditions per place. [2021-03-25 19:30:17,758 INFO L142 LiptonReduction]: Number of co-enabled transitions 546 [2021-03-25 19:30:17,767 INFO L154 LiptonReduction]: Checked pairs total: 283 [2021-03-25 19:30:17,767 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 19:30:17,767 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-25 19:30:17,769 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 74 transitions, 607 flow [2021-03-25 19:30:17,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,770 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:17,770 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:17,770 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 19:30:17,770 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:17,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:17,770 INFO L82 PathProgramCache]: Analyzing trace with hash -622253900, now seen corresponding path program 3 times [2021-03-25 19:30:17,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:17,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997727358] [2021-03-25 19:30:17,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:17,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:17,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:17,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:17,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:17,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997727358] [2021-03-25 19:30:17,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:17,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 19:30:17,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703197136] [2021-03-25 19:30:17,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 19:30:17,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:17,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 19:30:17,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 19:30:17,788 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 57 [2021-03-25 19:30:17,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 74 transitions, 607 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:17,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 57 [2021-03-25 19:30:17,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:17,828 INFO L129 PetriNetUnfolder]: 74/386 cut-off events. [2021-03-25 19:30:17,828 INFO L130 PetriNetUnfolder]: For 684/704 co-relation queries the response was YES. [2021-03-25 19:30:17,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1183 conditions, 386 events. 74/386 cut-off events. For 684/704 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2770 event pairs, 5 based on Foata normal form. 4/383 useless extension candidates. Maximal degree in co-relation 1082. Up to 62 conditions per place. [2021-03-25 19:30:17,830 INFO L132 encePairwiseOnDemand]: 54/57 looper letters, 2 selfloop transitions, 10 changer transitions 0/73 dead transitions. [2021-03-25 19:30:17,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 73 transitions, 619 flow [2021-03-25 19:30:17,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 19:30:17,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 19:30:17,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2021-03-25 19:30:17,831 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8713450292397661 [2021-03-25 19:30:17,831 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 149 transitions. [2021-03-25 19:30:17,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 149 transitions. [2021-03-25 19:30:17,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:17,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 149 transitions. [2021-03-25 19:30:17,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,832 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,833 INFO L185 Difference]: Start difference. First operand has 85 places, 74 transitions, 607 flow. Second operand 3 states and 149 transitions. [2021-03-25 19:30:17,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 73 transitions, 619 flow [2021-03-25 19:30:17,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 73 transitions, 580 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-03-25 19:30:17,838 INFO L241 Difference]: Finished difference. Result has 82 places, 73 transitions, 588 flow [2021-03-25 19:30:17,839 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2021-03-25 19:30:17,839 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 48 predicate places. [2021-03-25 19:30:17,839 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:17,839 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 73 transitions, 588 flow [2021-03-25 19:30:17,839 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 73 transitions, 588 flow [2021-03-25 19:30:17,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 73 transitions, 588 flow [2021-03-25 19:30:17,861 INFO L129 PetriNetUnfolder]: 56/333 cut-off events. [2021-03-25 19:30:17,861 INFO L130 PetriNetUnfolder]: For 462/474 co-relation queries the response was YES. [2021-03-25 19:30:17,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 333 events. 56/333 cut-off events. For 462/474 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2312 event pairs, 1 based on Foata normal form. 1/326 useless extension candidates. Maximal degree in co-relation 870. Up to 51 conditions per place. [2021-03-25 19:30:17,864 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 19:30:17,963 INFO L154 LiptonReduction]: Checked pairs total: 312 [2021-03-25 19:30:17,963 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 19:30:17,964 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 125 [2021-03-25 19:30:17,964 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 603 flow [2021-03-25 19:30:17,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:17,964 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:17,964 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:17,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 19:30:17,964 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:17,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:17,965 INFO L82 PathProgramCache]: Analyzing trace with hash -128345966, now seen corresponding path program 4 times [2021-03-25 19:30:17,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:17,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811321911] [2021-03-25 19:30:17,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:17,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:17,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:17,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:18,000 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 19:30:18,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 19:30:18,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:18,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811321911] [2021-03-25 19:30:18,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:18,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 19:30:18,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211130035] [2021-03-25 19:30:18,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 19:30:18,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:18,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 19:30:18,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 19:30:18,010 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 61 [2021-03-25 19:30:18,010 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 603 flow. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,011 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:18,011 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 61 [2021-03-25 19:30:18,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:18,147 INFO L129 PetriNetUnfolder]: 98/459 cut-off events. [2021-03-25 19:30:18,148 INFO L130 PetriNetUnfolder]: For 1131/1208 co-relation queries the response was YES. [2021-03-25 19:30:18,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 459 events. 98/459 cut-off events. For 1131/1208 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3374 event pairs, 16 based on Foata normal form. 28/477 useless extension candidates. Maximal degree in co-relation 1456. Up to 69 conditions per place. [2021-03-25 19:30:18,150 INFO L132 encePairwiseOnDemand]: 48/61 looper letters, 36 selfloop transitions, 25 changer transitions 0/85 dead transitions. [2021-03-25 19:30:18,150 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 85 transitions, 806 flow [2021-03-25 19:30:18,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 19:30:18,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 19:30:18,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 356 transitions. [2021-03-25 19:30:18,152 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6484517304189436 [2021-03-25 19:30:18,152 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 356 transitions. [2021-03-25 19:30:18,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 356 transitions. [2021-03-25 19:30:18,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:18,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 356 transitions. [2021-03-25 19:30:18,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.55555555555556) internal successors, (356), 9 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 61.0) internal successors, (610), 10 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,153 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 61.0) internal successors, (610), 10 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,154 INFO L185 Difference]: Start difference. First operand has 82 places, 73 transitions, 603 flow. Second operand 9 states and 356 transitions. [2021-03-25 19:30:18,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 85 transitions, 806 flow [2021-03-25 19:30:18,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 85 transitions, 776 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-25 19:30:18,158 INFO L241 Difference]: Finished difference. Result has 88 places, 76 transitions, 667 flow [2021-03-25 19:30:18,159 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=667, PETRI_PLACES=88, PETRI_TRANSITIONS=76} [2021-03-25 19:30:18,159 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 54 predicate places. [2021-03-25 19:30:18,159 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:18,159 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 76 transitions, 667 flow [2021-03-25 19:30:18,159 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 76 transitions, 667 flow [2021-03-25 19:30:18,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 76 transitions, 667 flow [2021-03-25 19:30:18,180 INFO L129 PetriNetUnfolder]: 58/336 cut-off events. [2021-03-25 19:30:18,180 INFO L130 PetriNetUnfolder]: For 626/645 co-relation queries the response was YES. [2021-03-25 19:30:18,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1064 conditions, 336 events. 58/336 cut-off events. For 626/645 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2382 event pairs, 1 based on Foata normal form. 6/337 useless extension candidates. Maximal degree in co-relation 966. Up to 51 conditions per place. [2021-03-25 19:30:18,183 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 19:30:18,191 INFO L154 LiptonReduction]: Checked pairs total: 68 [2021-03-25 19:30:18,191 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 19:30:18,191 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-03-25 19:30:18,191 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 76 transitions, 667 flow [2021-03-25 19:30:18,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,192 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:18,192 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:18,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 19:30:18,192 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:18,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:18,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1645157016, now seen corresponding path program 1 times [2021-03-25 19:30:18,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:18,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163142026] [2021-03-25 19:30:18,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:18,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:18,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:18,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:18,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:18,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:18,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:18,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:18,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:18,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163142026] [2021-03-25 19:30:18,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:18,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 19:30:18,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162531174] [2021-03-25 19:30:18,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 19:30:18,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:18,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 19:30:18,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 19:30:18,237 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 61 [2021-03-25 19:30:18,238 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 76 transitions, 667 flow. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,238 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:18,238 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 61 [2021-03-25 19:30:18,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:18,391 INFO L129 PetriNetUnfolder]: 84/430 cut-off events. [2021-03-25 19:30:18,391 INFO L130 PetriNetUnfolder]: For 1349/1439 co-relation queries the response was YES. [2021-03-25 19:30:18,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1532 conditions, 430 events. 84/430 cut-off events. For 1349/1439 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3146 event pairs, 7 based on Foata normal form. 8/433 useless extension candidates. Maximal degree in co-relation 1417. Up to 64 conditions per place. [2021-03-25 19:30:18,394 INFO L132 encePairwiseOnDemand]: 51/61 looper letters, 38 selfloop transitions, 23 changer transitions 0/85 dead transitions. [2021-03-25 19:30:18,394 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 85 transitions, 865 flow [2021-03-25 19:30:18,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 19:30:18,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 19:30:18,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 354 transitions. [2021-03-25 19:30:18,395 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.644808743169399 [2021-03-25 19:30:18,395 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 354 transitions. [2021-03-25 19:30:18,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 354 transitions. [2021-03-25 19:30:18,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:18,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 354 transitions. [2021-03-25 19:30:18,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.333333333333336) internal successors, (354), 9 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 61.0) internal successors, (610), 10 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,397 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 61.0) internal successors, (610), 10 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,397 INFO L185 Difference]: Start difference. First operand has 88 places, 76 transitions, 667 flow. Second operand 9 states and 354 transitions. [2021-03-25 19:30:18,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 85 transitions, 865 flow [2021-03-25 19:30:18,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 85 transitions, 811 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-25 19:30:18,403 INFO L241 Difference]: Finished difference. Result has 93 places, 75 transitions, 674 flow [2021-03-25 19:30:18,403 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=674, PETRI_PLACES=93, PETRI_TRANSITIONS=75} [2021-03-25 19:30:18,403 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 59 predicate places. [2021-03-25 19:30:18,403 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:18,403 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 75 transitions, 674 flow [2021-03-25 19:30:18,404 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 75 transitions, 674 flow [2021-03-25 19:30:18,404 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 75 transitions, 674 flow [2021-03-25 19:30:18,422 INFO L129 PetriNetUnfolder]: 46/313 cut-off events. [2021-03-25 19:30:18,423 INFO L130 PetriNetUnfolder]: For 602/611 co-relation queries the response was YES. [2021-03-25 19:30:18,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 985 conditions, 313 events. 46/313 cut-off events. For 602/611 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2259 event pairs, 1 based on Foata normal form. 6/315 useless extension candidates. Maximal degree in co-relation 883. Up to 45 conditions per place. [2021-03-25 19:30:18,425 INFO L142 LiptonReduction]: Number of co-enabled transitions 476 [2021-03-25 19:30:18,467 INFO L154 LiptonReduction]: Checked pairs total: 153 [2021-03-25 19:30:18,467 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 19:30:18,467 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-03-25 19:30:18,467 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 75 transitions, 688 flow [2021-03-25 19:30:18,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,468 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:18,468 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:18,468 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 19:30:18,468 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:18,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:18,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1538447959, now seen corresponding path program 1 times [2021-03-25 19:30:18,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:18,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341887677] [2021-03-25 19:30:18,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:18,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:18,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:18,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:18,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:18,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:18,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:18,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:18,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341887677] [2021-03-25 19:30:18,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:18,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 19:30:18,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958476855] [2021-03-25 19:30:18,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 19:30:18,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:18,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 19:30:18,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 19:30:18,498 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 62 [2021-03-25 19:30:18,498 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 75 transitions, 688 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,498 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:18,499 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 62 [2021-03-25 19:30:18,499 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:18,597 INFO L129 PetriNetUnfolder]: 109/566 cut-off events. [2021-03-25 19:30:18,597 INFO L130 PetriNetUnfolder]: For 1102/1131 co-relation queries the response was YES. [2021-03-25 19:30:18,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1877 conditions, 566 events. 109/566 cut-off events. For 1102/1131 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4540 event pairs, 4 based on Foata normal form. 26/583 useless extension candidates. Maximal degree in co-relation 1700. Up to 122 conditions per place. [2021-03-25 19:30:18,601 INFO L132 encePairwiseOnDemand]: 55/62 looper letters, 21 selfloop transitions, 11 changer transitions 2/92 dead transitions. [2021-03-25 19:30:18,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 92 transitions, 824 flow [2021-03-25 19:30:18,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 19:30:18,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 19:30:18,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 452 transitions. [2021-03-25 19:30:18,602 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8100358422939068 [2021-03-25 19:30:18,602 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 452 transitions. [2021-03-25 19:30:18,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 452 transitions. [2021-03-25 19:30:18,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:18,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 452 transitions. [2021-03-25 19:30:18,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 9 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,604 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,604 INFO L185 Difference]: Start difference. First operand has 93 places, 75 transitions, 688 flow. Second operand 9 states and 452 transitions. [2021-03-25 19:30:18,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 92 transitions, 824 flow [2021-03-25 19:30:18,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 92 transitions, 774 flow, removed 2 selfloop flow, removed 8 redundant places. [2021-03-25 19:30:18,610 INFO L241 Difference]: Finished difference. Result has 99 places, 81 transitions, 716 flow [2021-03-25 19:30:18,610 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=716, PETRI_PLACES=99, PETRI_TRANSITIONS=81} [2021-03-25 19:30:18,610 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 65 predicate places. [2021-03-25 19:30:18,610 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:18,610 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 81 transitions, 716 flow [2021-03-25 19:30:18,610 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 81 transitions, 716 flow [2021-03-25 19:30:18,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 81 transitions, 716 flow [2021-03-25 19:30:18,630 INFO L129 PetriNetUnfolder]: 51/377 cut-off events. [2021-03-25 19:30:18,630 INFO L130 PetriNetUnfolder]: For 716/736 co-relation queries the response was YES. [2021-03-25 19:30:18,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1272 conditions, 377 events. 51/377 cut-off events. For 716/736 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2901 event pairs, 1 based on Foata normal form. 13/381 useless extension candidates. Maximal degree in co-relation 1204. Up to 63 conditions per place. [2021-03-25 19:30:18,633 INFO L142 LiptonReduction]: Number of co-enabled transitions 526 [2021-03-25 19:30:18,698 INFO L154 LiptonReduction]: Checked pairs total: 126 [2021-03-25 19:30:18,698 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 19:30:18,698 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 88 [2021-03-25 19:30:18,698 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 81 transitions, 727 flow [2021-03-25 19:30:18,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,699 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:18,699 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:18,699 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 19:30:18,699 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:18,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:18,699 INFO L82 PathProgramCache]: Analyzing trace with hash 883272795, now seen corresponding path program 1 times [2021-03-25 19:30:18,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:18,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792468747] [2021-03-25 19:30:18,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:18,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:18,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:18,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:18,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:18,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:18,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:18,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:18,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792468747] [2021-03-25 19:30:18,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:18,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 19:30:18,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166517833] [2021-03-25 19:30:18,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 19:30:18,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:18,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 19:30:18,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 19:30:18,727 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 65 [2021-03-25 19:30:18,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 81 transitions, 727 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:18,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 65 [2021-03-25 19:30:18,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:18,853 INFO L129 PetriNetUnfolder]: 118/733 cut-off events. [2021-03-25 19:30:18,854 INFO L130 PetriNetUnfolder]: For 1678/1727 co-relation queries the response was YES. [2021-03-25 19:30:18,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2625 conditions, 733 events. 118/733 cut-off events. For 1678/1727 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6585 event pairs, 13 based on Foata normal form. 47/759 useless extension candidates. Maximal degree in co-relation 2503. Up to 168 conditions per place. [2021-03-25 19:30:18,858 INFO L132 encePairwiseOnDemand]: 54/65 looper letters, 19 selfloop transitions, 19 changer transitions 4/98 dead transitions. [2021-03-25 19:30:18,858 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 98 transitions, 934 flow [2021-03-25 19:30:18,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 19:30:18,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 19:30:18,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 504 transitions. [2021-03-25 19:30:18,859 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7753846153846153 [2021-03-25 19:30:18,859 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 504 transitions. [2021-03-25 19:30:18,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 504 transitions. [2021-03-25 19:30:18,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:18,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 504 transitions. [2021-03-25 19:30:18,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 50.4) internal successors, (504), 10 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 65.0) internal successors, (715), 11 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,862 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 65.0) internal successors, (715), 11 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,862 INFO L185 Difference]: Start difference. First operand has 97 places, 81 transitions, 727 flow. Second operand 10 states and 504 transitions. [2021-03-25 19:30:18,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 98 transitions, 934 flow [2021-03-25 19:30:18,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 98 transitions, 907 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-03-25 19:30:18,870 INFO L241 Difference]: Finished difference. Result has 108 places, 90 transitions, 837 flow [2021-03-25 19:30:18,870 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=837, PETRI_PLACES=108, PETRI_TRANSITIONS=90} [2021-03-25 19:30:18,871 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 74 predicate places. [2021-03-25 19:30:18,871 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:18,871 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 90 transitions, 837 flow [2021-03-25 19:30:18,871 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 90 transitions, 837 flow [2021-03-25 19:30:18,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 90 transitions, 837 flow [2021-03-25 19:30:18,923 INFO L129 PetriNetUnfolder]: 66/564 cut-off events. [2021-03-25 19:30:18,923 INFO L130 PetriNetUnfolder]: For 1301/1324 co-relation queries the response was YES. [2021-03-25 19:30:18,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1948 conditions, 564 events. 66/564 cut-off events. For 1301/1324 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4926 event pairs, 1 based on Foata normal form. 18/573 useless extension candidates. Maximal degree in co-relation 1852. Up to 87 conditions per place. [2021-03-25 19:30:18,928 INFO L142 LiptonReduction]: Number of co-enabled transitions 562 [2021-03-25 19:30:18,955 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-25 19:30:18,955 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 19:30:18,955 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84 [2021-03-25 19:30:18,956 INFO L480 AbstractCegarLoop]: Abstraction has has 106 places, 90 transitions, 847 flow [2021-03-25 19:30:18,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,956 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:18,956 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:18,956 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 19:30:18,956 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:18,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:18,956 INFO L82 PathProgramCache]: Analyzing trace with hash -224035157, now seen corresponding path program 1 times [2021-03-25 19:30:18,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:18,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187171748] [2021-03-25 19:30:18,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:18,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:18,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:18,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:18,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:18,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:18,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:18,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:18,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187171748] [2021-03-25 19:30:18,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:18,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 19:30:18,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346642906] [2021-03-25 19:30:18,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 19:30:18,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:18,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 19:30:18,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 19:30:18,978 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 67 [2021-03-25 19:30:18,978 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 90 transitions, 847 flow. Second operand has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:18,978 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:18,978 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 67 [2021-03-25 19:30:18,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:19,086 INFO L129 PetriNetUnfolder]: 109/761 cut-off events. [2021-03-25 19:30:19,087 INFO L130 PetriNetUnfolder]: For 2189/2305 co-relation queries the response was YES. [2021-03-25 19:30:19,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2867 conditions, 761 events. 109/761 cut-off events. For 2189/2305 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 7193 event pairs, 7 based on Foata normal form. 71/813 useless extension candidates. Maximal degree in co-relation 2729. Up to 235 conditions per place. [2021-03-25 19:30:19,091 INFO L132 encePairwiseOnDemand]: 61/67 looper letters, 30 selfloop transitions, 13 changer transitions 0/99 dead transitions. [2021-03-25 19:30:19,091 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 99 transitions, 989 flow [2021-03-25 19:30:19,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 19:30:19,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 19:30:19,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 402 transitions. [2021-03-25 19:30:19,092 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-03-25 19:30:19,092 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 402 transitions. [2021-03-25 19:30:19,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 402 transitions. [2021-03-25 19:30:19,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:19,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 402 transitions. [2021-03-25 19:30:19,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 50.25) internal successors, (402), 8 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,094 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,094 INFO L185 Difference]: Start difference. First operand has 106 places, 90 transitions, 847 flow. Second operand 8 states and 402 transitions. [2021-03-25 19:30:19,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 99 transitions, 989 flow [2021-03-25 19:30:19,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 99 transitions, 957 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-03-25 19:30:19,105 INFO L241 Difference]: Finished difference. Result has 111 places, 97 transitions, 900 flow [2021-03-25 19:30:19,105 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=900, PETRI_PLACES=111, PETRI_TRANSITIONS=97} [2021-03-25 19:30:19,105 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 77 predicate places. [2021-03-25 19:30:19,105 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:19,106 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 97 transitions, 900 flow [2021-03-25 19:30:19,106 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 97 transitions, 900 flow [2021-03-25 19:30:19,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 97 transitions, 900 flow [2021-03-25 19:30:19,143 INFO L129 PetriNetUnfolder]: 77/650 cut-off events. [2021-03-25 19:30:19,143 INFO L130 PetriNetUnfolder]: For 1577/1598 co-relation queries the response was YES. [2021-03-25 19:30:19,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2263 conditions, 650 events. 77/650 cut-off events. For 1577/1598 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6080 event pairs, 4 based on Foata normal form. 17/658 useless extension candidates. Maximal degree in co-relation 2081. Up to 93 conditions per place. [2021-03-25 19:30:19,149 INFO L142 LiptonReduction]: Number of co-enabled transitions 620 [2021-03-25 19:30:19,167 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 19:30:19,167 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 19:30:19,167 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-03-25 19:30:19,168 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 97 transitions, 905 flow [2021-03-25 19:30:19,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,168 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:19,168 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:19,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 19:30:19,168 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:19,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:19,168 INFO L82 PathProgramCache]: Analyzing trace with hash -334866641, now seen corresponding path program 2 times [2021-03-25 19:30:19,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:19,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512935823] [2021-03-25 19:30:19,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:19,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:19,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:19,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:19,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:19,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:19,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:19,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512935823] [2021-03-25 19:30:19,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:19,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 19:30:19,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835924813] [2021-03-25 19:30:19,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 19:30:19,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:19,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 19:30:19,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 19:30:19,189 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 68 [2021-03-25 19:30:19,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 97 transitions, 905 flow. Second operand has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:19,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 68 [2021-03-25 19:30:19,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:19,296 INFO L129 PetriNetUnfolder]: 107/781 cut-off events. [2021-03-25 19:30:19,296 INFO L130 PetriNetUnfolder]: For 2275/2431 co-relation queries the response was YES. [2021-03-25 19:30:19,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2946 conditions, 781 events. 107/781 cut-off events. For 2275/2431 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7504 event pairs, 7 based on Foata normal form. 96/858 useless extension candidates. Maximal degree in co-relation 2727. Up to 239 conditions per place. [2021-03-25 19:30:19,300 INFO L132 encePairwiseOnDemand]: 61/68 looper letters, 29 selfloop transitions, 14 changer transitions 0/99 dead transitions. [2021-03-25 19:30:19,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 99 transitions, 1009 flow [2021-03-25 19:30:19,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 19:30:19,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 19:30:19,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 354 transitions. [2021-03-25 19:30:19,301 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7436974789915967 [2021-03-25 19:30:19,301 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 354 transitions. [2021-03-25 19:30:19,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 354 transitions. [2021-03-25 19:30:19,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:19,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 354 transitions. [2021-03-25 19:30:19,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 50.57142857142857) internal successors, (354), 7 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 68.0) internal successors, (544), 8 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,303 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 68.0) internal successors, (544), 8 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,303 INFO L185 Difference]: Start difference. First operand has 111 places, 97 transitions, 905 flow. Second operand 7 states and 354 transitions. [2021-03-25 19:30:19,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 99 transitions, 1009 flow [2021-03-25 19:30:19,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 99 transitions, 981 flow, removed 11 selfloop flow, removed 1 redundant places. [2021-03-25 19:30:19,314 INFO L241 Difference]: Finished difference. Result has 118 places, 99 transitions, 933 flow [2021-03-25 19:30:19,314 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=877, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=933, PETRI_PLACES=118, PETRI_TRANSITIONS=99} [2021-03-25 19:30:19,314 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 84 predicate places. [2021-03-25 19:30:19,314 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:19,314 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 99 transitions, 933 flow [2021-03-25 19:30:19,314 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 99 transitions, 933 flow [2021-03-25 19:30:19,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 118 places, 99 transitions, 933 flow [2021-03-25 19:30:19,350 INFO L129 PetriNetUnfolder]: 75/658 cut-off events. [2021-03-25 19:30:19,350 INFO L130 PetriNetUnfolder]: For 1679/1704 co-relation queries the response was YES. [2021-03-25 19:30:19,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2381 conditions, 658 events. 75/658 cut-off events. For 1679/1704 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 6226 event pairs, 1 based on Foata normal form. 21/670 useless extension candidates. Maximal degree in co-relation 2166. Up to 96 conditions per place. [2021-03-25 19:30:19,356 INFO L142 LiptonReduction]: Number of co-enabled transitions 626 [2021-03-25 19:30:19,374 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 19:30:19,374 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 19:30:19,375 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 61 [2021-03-25 19:30:19,375 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 98 transitions, 927 flow [2021-03-25 19:30:19,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,375 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:19,375 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:19,375 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 19:30:19,375 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:19,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:19,376 INFO L82 PathProgramCache]: Analyzing trace with hash 162033296, now seen corresponding path program 1 times [2021-03-25 19:30:19,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:19,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298072332] [2021-03-25 19:30:19,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:19,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:19,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:19,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:19,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:19,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:19,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298072332] [2021-03-25 19:30:19,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:19,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 19:30:19,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93533649] [2021-03-25 19:30:19,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 19:30:19,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:19,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 19:30:19,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 19:30:19,392 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 69 [2021-03-25 19:30:19,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 98 transitions, 927 flow. Second operand has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,393 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:19,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 69 [2021-03-25 19:30:19,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:19,489 INFO L129 PetriNetUnfolder]: 107/771 cut-off events. [2021-03-25 19:30:19,489 INFO L130 PetriNetUnfolder]: For 2428/2600 co-relation queries the response was YES. [2021-03-25 19:30:19,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2985 conditions, 771 events. 107/771 cut-off events. For 2428/2600 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7380 event pairs, 7 based on Foata normal form. 99/851 useless extension candidates. Maximal degree in co-relation 2747. Up to 243 conditions per place. [2021-03-25 19:30:19,493 INFO L132 encePairwiseOnDemand]: 63/69 looper letters, 28 selfloop transitions, 8 changer transitions 13/98 dead transitions. [2021-03-25 19:30:19,493 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 98 transitions, 1011 flow [2021-03-25 19:30:19,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 19:30:19,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 19:30:19,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 259 transitions. [2021-03-25 19:30:19,494 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7507246376811594 [2021-03-25 19:30:19,494 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 259 transitions. [2021-03-25 19:30:19,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 259 transitions. [2021-03-25 19:30:19,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:19,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 259 transitions. [2021-03-25 19:30:19,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 51.8) internal successors, (259), 5 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,495 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,495 INFO L185 Difference]: Start difference. First operand has 117 places, 98 transitions, 927 flow. Second operand 5 states and 259 transitions. [2021-03-25 19:30:19,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 98 transitions, 1011 flow [2021-03-25 19:30:19,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 98 transitions, 977 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-03-25 19:30:19,506 INFO L241 Difference]: Finished difference. Result has 119 places, 85 transitions, 779 flow [2021-03-25 19:30:19,506 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=779, PETRI_PLACES=119, PETRI_TRANSITIONS=85} [2021-03-25 19:30:19,506 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 85 predicate places. [2021-03-25 19:30:19,506 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:19,506 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 85 transitions, 779 flow [2021-03-25 19:30:19,506 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 85 transitions, 779 flow [2021-03-25 19:30:19,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 85 transitions, 779 flow [2021-03-25 19:30:19,534 INFO L129 PetriNetUnfolder]: 57/522 cut-off events. [2021-03-25 19:30:19,534 INFO L130 PetriNetUnfolder]: For 1267/1284 co-relation queries the response was YES. [2021-03-25 19:30:19,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 522 events. 57/522 cut-off events. For 1267/1284 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4576 event pairs, 1 based on Foata normal form. 16/528 useless extension candidates. Maximal degree in co-relation 1817. Up to 79 conditions per place. [2021-03-25 19:30:19,539 INFO L142 LiptonReduction]: Number of co-enabled transitions 524 [2021-03-25 19:30:19,541 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 19:30:19,541 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 19:30:19,541 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-25 19:30:19,541 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 85 transitions, 779 flow [2021-03-25 19:30:19,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,542 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:19,542 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:19,542 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 19:30:19,542 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:19,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:19,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1546225863, now seen corresponding path program 1 times [2021-03-25 19:30:19,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:19,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704374115] [2021-03-25 19:30:19,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:19,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:19,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:19,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:19,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:19,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:19,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:19,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:19,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704374115] [2021-03-25 19:30:19,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:19,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 19:30:19,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413100421] [2021-03-25 19:30:19,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 19:30:19,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:19,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 19:30:19,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 19:30:19,567 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 69 [2021-03-25 19:30:19,568 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 85 transitions, 779 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,568 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:19,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 69 [2021-03-25 19:30:19,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:19,681 INFO L129 PetriNetUnfolder]: 75/642 cut-off events. [2021-03-25 19:30:19,681 INFO L130 PetriNetUnfolder]: For 1927/2032 co-relation queries the response was YES. [2021-03-25 19:30:19,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2537 conditions, 642 events. 75/642 cut-off events. For 1927/2032 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5916 event pairs, 4 based on Foata normal form. 54/678 useless extension candidates. Maximal degree in co-relation 2382. Up to 94 conditions per place. [2021-03-25 19:30:19,685 INFO L132 encePairwiseOnDemand]: 59/69 looper letters, 24 selfloop transitions, 21 changer transitions 6/100 dead transitions. [2021-03-25 19:30:19,685 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 100 transitions, 1019 flow [2021-03-25 19:30:19,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 19:30:19,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 19:30:19,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 457 transitions. [2021-03-25 19:30:19,686 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7359098228663447 [2021-03-25 19:30:19,686 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 457 transitions. [2021-03-25 19:30:19,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 457 transitions. [2021-03-25 19:30:19,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:19,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 457 transitions. [2021-03-25 19:30:19,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 50.77777777777778) internal successors, (457), 9 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 69.0) internal successors, (690), 10 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,688 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 69.0) internal successors, (690), 10 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,688 INFO L185 Difference]: Start difference. First operand has 111 places, 85 transitions, 779 flow. Second operand 9 states and 457 transitions. [2021-03-25 19:30:19,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 100 transitions, 1019 flow [2021-03-25 19:30:19,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 100 transitions, 948 flow, removed 17 selfloop flow, removed 9 redundant places. [2021-03-25 19:30:19,696 INFO L241 Difference]: Finished difference. Result has 113 places, 88 transitions, 819 flow [2021-03-25 19:30:19,697 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=819, PETRI_PLACES=113, PETRI_TRANSITIONS=88} [2021-03-25 19:30:19,697 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 79 predicate places. [2021-03-25 19:30:19,697 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:19,697 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 88 transitions, 819 flow [2021-03-25 19:30:19,697 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 88 transitions, 819 flow [2021-03-25 19:30:19,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 88 transitions, 819 flow [2021-03-25 19:30:19,725 INFO L129 PetriNetUnfolder]: 50/543 cut-off events. [2021-03-25 19:30:19,725 INFO L130 PetriNetUnfolder]: For 1338/1355 co-relation queries the response was YES. [2021-03-25 19:30:19,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1926 conditions, 543 events. 50/543 cut-off events. For 1338/1355 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4940 event pairs, 1 based on Foata normal form. 14/549 useless extension candidates. Maximal degree in co-relation 1825. Up to 87 conditions per place. [2021-03-25 19:30:19,729 INFO L142 LiptonReduction]: Number of co-enabled transitions 516 [2021-03-25 19:30:19,732 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 19:30:19,732 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 19:30:19,732 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-25 19:30:19,732 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 88 transitions, 819 flow [2021-03-25 19:30:19,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,733 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:19,733 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:19,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 19:30:19,733 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:19,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:19,733 INFO L82 PathProgramCache]: Analyzing trace with hash 952170435, now seen corresponding path program 2 times [2021-03-25 19:30:19,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:19,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406477667] [2021-03-25 19:30:19,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:19,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:19,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:19,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:19,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:19,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:19,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:19,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:19,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406477667] [2021-03-25 19:30:19,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:19,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 19:30:19,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618038383] [2021-03-25 19:30:19,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 19:30:19,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:19,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 19:30:19,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 19:30:19,758 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 69 [2021-03-25 19:30:19,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 88 transitions, 819 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:19,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 69 [2021-03-25 19:30:19,759 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:19,866 INFO L129 PetriNetUnfolder]: 71/635 cut-off events. [2021-03-25 19:30:19,866 INFO L130 PetriNetUnfolder]: For 1804/1884 co-relation queries the response was YES. [2021-03-25 19:30:19,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2464 conditions, 635 events. 71/635 cut-off events. For 1804/1884 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5904 event pairs, 4 based on Foata normal form. 52/670 useless extension candidates. Maximal degree in co-relation 2331. Up to 183 conditions per place. [2021-03-25 19:30:19,870 INFO L132 encePairwiseOnDemand]: 59/69 looper letters, 26 selfloop transitions, 20 changer transitions 0/95 dead transitions. [2021-03-25 19:30:19,870 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 95 transitions, 968 flow [2021-03-25 19:30:19,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 19:30:19,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 19:30:19,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 403 transitions. [2021-03-25 19:30:19,871 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.730072463768116 [2021-03-25 19:30:19,871 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 403 transitions. [2021-03-25 19:30:19,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 403 transitions. [2021-03-25 19:30:19,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:19,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 403 transitions. [2021-03-25 19:30:19,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 50.375) internal successors, (403), 8 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,872 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,872 INFO L185 Difference]: Start difference. First operand has 111 places, 88 transitions, 819 flow. Second operand 8 states and 403 transitions. [2021-03-25 19:30:19,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 95 transitions, 968 flow [2021-03-25 19:30:19,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 95 transitions, 890 flow, removed 17 selfloop flow, removed 10 redundant places. [2021-03-25 19:30:19,881 INFO L241 Difference]: Finished difference. Result has 110 places, 94 transitions, 854 flow [2021-03-25 19:30:19,882 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=749, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=854, PETRI_PLACES=110, PETRI_TRANSITIONS=94} [2021-03-25 19:30:19,882 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 76 predicate places. [2021-03-25 19:30:19,882 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:19,882 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 94 transitions, 854 flow [2021-03-25 19:30:19,882 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 94 transitions, 854 flow [2021-03-25 19:30:19,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 94 transitions, 854 flow [2021-03-25 19:30:19,911 INFO L129 PetriNetUnfolder]: 65/607 cut-off events. [2021-03-25 19:30:19,912 INFO L130 PetriNetUnfolder]: For 1397/1414 co-relation queries the response was YES. [2021-03-25 19:30:19,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2098 conditions, 607 events. 65/607 cut-off events. For 1397/1414 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5692 event pairs, 1 based on Foata normal form. 16/610 useless extension candidates. Maximal degree in co-relation 1893. Up to 98 conditions per place. [2021-03-25 19:30:19,916 INFO L142 LiptonReduction]: Number of co-enabled transitions 578 [2021-03-25 19:30:19,933 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 19:30:19,933 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 19:30:19,933 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-03-25 19:30:19,933 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 94 transitions, 863 flow [2021-03-25 19:30:19,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,933 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:19,934 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:19,934 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 19:30:19,934 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:19,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:19,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1267882133, now seen corresponding path program 3 times [2021-03-25 19:30:19,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:19,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321692598] [2021-03-25 19:30:19,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:19,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:19,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:19,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:19,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:19,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:19,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:19,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:19,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:19,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321692598] [2021-03-25 19:30:19,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:19,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 19:30:19,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910334064] [2021-03-25 19:30:19,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 19:30:19,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:19,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 19:30:19,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 19:30:19,959 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 70 [2021-03-25 19:30:19,959 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 94 transitions, 863 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:19,959 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:19,959 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 70 [2021-03-25 19:30:19,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:20,095 INFO L129 PetriNetUnfolder]: 66/668 cut-off events. [2021-03-25 19:30:20,095 INFO L130 PetriNetUnfolder]: For 1820/1910 co-relation queries the response was YES. [2021-03-25 19:30:20,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2535 conditions, 668 events. 66/668 cut-off events. For 1820/1910 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 6433 event pairs, 4 based on Foata normal form. 64/714 useless extension candidates. Maximal degree in co-relation 2315. Up to 159 conditions per place. [2021-03-25 19:30:20,098 INFO L132 encePairwiseOnDemand]: 59/70 looper letters, 24 selfloop transitions, 24 changer transitions 0/97 dead transitions. [2021-03-25 19:30:20,098 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 97 transitions, 976 flow [2021-03-25 19:30:20,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 19:30:20,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 19:30:20,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 453 transitions. [2021-03-25 19:30:20,099 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.719047619047619 [2021-03-25 19:30:20,099 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 453 transitions. [2021-03-25 19:30:20,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 453 transitions. [2021-03-25 19:30:20,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:20,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 453 transitions. [2021-03-25 19:30:20,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 50.333333333333336) internal successors, (453), 9 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,101 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,101 INFO L185 Difference]: Start difference. First operand has 110 places, 94 transitions, 863 flow. Second operand 9 states and 453 transitions. [2021-03-25 19:30:20,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 97 transitions, 976 flow [2021-03-25 19:30:20,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 97 transitions, 922 flow, removed 15 selfloop flow, removed 3 redundant places. [2021-03-25 19:30:20,109 INFO L241 Difference]: Finished difference. Result has 116 places, 95 transitions, 868 flow [2021-03-25 19:30:20,110 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=868, PETRI_PLACES=116, PETRI_TRANSITIONS=95} [2021-03-25 19:30:20,110 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 82 predicate places. [2021-03-25 19:30:20,110 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:20,110 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 95 transitions, 868 flow [2021-03-25 19:30:20,110 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 95 transitions, 868 flow [2021-03-25 19:30:20,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 95 transitions, 868 flow [2021-03-25 19:30:20,142 INFO L129 PetriNetUnfolder]: 60/640 cut-off events. [2021-03-25 19:30:20,142 INFO L130 PetriNetUnfolder]: For 1357/1370 co-relation queries the response was YES. [2021-03-25 19:30:20,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2241 conditions, 640 events. 60/640 cut-off events. For 1357/1370 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6219 event pairs, 1 based on Foata normal form. 12/638 useless extension candidates. Maximal degree in co-relation 2028. Up to 105 conditions per place. [2021-03-25 19:30:20,146 INFO L142 LiptonReduction]: Number of co-enabled transitions 586 [2021-03-25 19:30:20,163 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 19:30:20,163 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 19:30:20,163 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53 [2021-03-25 19:30:20,163 INFO L480 AbstractCegarLoop]: Abstraction has has 115 places, 94 transitions, 864 flow [2021-03-25 19:30:20,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,164 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:20,164 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:20,164 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 19:30:20,164 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:20,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:20,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1515852507, now seen corresponding path program 4 times [2021-03-25 19:30:20,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:20,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020106754] [2021-03-25 19:30:20,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:20,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:20,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:20,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:20,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:20,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:30:20,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:20,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:20,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020106754] [2021-03-25 19:30:20,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:20,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 19:30:20,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862811055] [2021-03-25 19:30:20,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 19:30:20,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:20,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 19:30:20,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 19:30:20,188 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 71 [2021-03-25 19:30:20,189 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 94 transitions, 864 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,189 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:20,189 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 71 [2021-03-25 19:30:20,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:20,309 INFO L129 PetriNetUnfolder]: 66/657 cut-off events. [2021-03-25 19:30:20,309 INFO L130 PetriNetUnfolder]: For 1699/1783 co-relation queries the response was YES. [2021-03-25 19:30:20,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2520 conditions, 657 events. 66/657 cut-off events. For 1699/1783 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 6286 event pairs, 4 based on Foata normal form. 58/697 useless extension candidates. Maximal degree in co-relation 2292. Up to 168 conditions per place. [2021-03-25 19:30:20,312 INFO L132 encePairwiseOnDemand]: 60/71 looper letters, 24 selfloop transitions, 14 changer transitions 23/95 dead transitions. [2021-03-25 19:30:20,312 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 95 transitions, 961 flow [2021-03-25 19:30:20,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 19:30:20,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 19:30:20,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 499 transitions. [2021-03-25 19:30:20,313 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7028169014084507 [2021-03-25 19:30:20,313 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 499 transitions. [2021-03-25 19:30:20,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 499 transitions. [2021-03-25 19:30:20,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:20,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 499 transitions. [2021-03-25 19:30:20,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 49.9) internal successors, (499), 10 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 71.0) internal successors, (781), 11 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,315 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 71.0) internal successors, (781), 11 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,315 INFO L185 Difference]: Start difference. First operand has 115 places, 94 transitions, 864 flow. Second operand 10 states and 499 transitions. [2021-03-25 19:30:20,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 95 transitions, 961 flow [2021-03-25 19:30:20,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 95 transitions, 848 flow, removed 13 selfloop flow, removed 11 redundant places. [2021-03-25 19:30:20,324 INFO L241 Difference]: Finished difference. Result has 114 places, 71 transitions, 561 flow [2021-03-25 19:30:20,324 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=561, PETRI_PLACES=114, PETRI_TRANSITIONS=71} [2021-03-25 19:30:20,324 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 80 predicate places. [2021-03-25 19:30:20,324 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:20,324 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 71 transitions, 561 flow [2021-03-25 19:30:20,324 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 71 transitions, 561 flow [2021-03-25 19:30:20,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 71 transitions, 561 flow [2021-03-25 19:30:20,346 INFO L129 PetriNetUnfolder]: 37/446 cut-off events. [2021-03-25 19:30:20,346 INFO L130 PetriNetUnfolder]: For 800/811 co-relation queries the response was YES. [2021-03-25 19:30:20,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 446 events. 37/446 cut-off events. For 800/811 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3905 event pairs, 1 based on Foata normal form. 10/447 useless extension candidates. Maximal degree in co-relation 1283. Up to 70 conditions per place. [2021-03-25 19:30:20,349 INFO L142 LiptonReduction]: Number of co-enabled transitions 390 [2021-03-25 19:30:20,469 INFO L154 LiptonReduction]: Checked pairs total: 41 [2021-03-25 19:30:20,469 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 19:30:20,470 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 146 [2021-03-25 19:30:20,470 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 70 transitions, 583 flow [2021-03-25 19:30:20,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,470 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:20,470 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:20,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 19:30:20,470 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:20,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:20,470 INFO L82 PathProgramCache]: Analyzing trace with hash 2113174838, now seen corresponding path program 5 times [2021-03-25 19:30:20,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:20,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219810976] [2021-03-25 19:30:20,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:20,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:20,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:20,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:20,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:20,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:20,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 19:30:20,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:20,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:20,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219810976] [2021-03-25 19:30:20,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:20,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 19:30:20,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693853999] [2021-03-25 19:30:20,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 19:30:20,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:20,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 19:30:20,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 19:30:20,513 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 78 [2021-03-25 19:30:20,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 70 transitions, 583 flow. Second operand has 8 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:20,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 78 [2021-03-25 19:30:20,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:20,614 INFO L129 PetriNetUnfolder]: 39/366 cut-off events. [2021-03-25 19:30:20,614 INFO L130 PetriNetUnfolder]: For 833/889 co-relation queries the response was YES. [2021-03-25 19:30:20,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1300 conditions, 366 events. 39/366 cut-off events. For 833/889 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2922 event pairs, 8 based on Foata normal form. 4/354 useless extension candidates. Maximal degree in co-relation 1245. Up to 130 conditions per place. [2021-03-25 19:30:20,616 INFO L132 encePairwiseOnDemand]: 71/78 looper letters, 14 selfloop transitions, 5 changer transitions 6/68 dead transitions. [2021-03-25 19:30:20,616 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 68 transitions, 599 flow [2021-03-25 19:30:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 19:30:20,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 19:30:20,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 372 transitions. [2021-03-25 19:30:20,617 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5961538461538461 [2021-03-25 19:30:20,617 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 372 transitions. [2021-03-25 19:30:20,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 372 transitions. [2021-03-25 19:30:20,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:20,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 372 transitions. [2021-03-25 19:30:20,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 46.5) internal successors, (372), 8 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,619 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,619 INFO L185 Difference]: Start difference. First operand has 100 places, 70 transitions, 583 flow. Second operand 8 states and 372 transitions. [2021-03-25 19:30:20,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 68 transitions, 599 flow [2021-03-25 19:30:20,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 68 transitions, 494 flow, removed 18 selfloop flow, removed 21 redundant places. [2021-03-25 19:30:20,622 INFO L241 Difference]: Finished difference. Result has 85 places, 60 transitions, 388 flow [2021-03-25 19:30:20,622 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=388, PETRI_PLACES=85, PETRI_TRANSITIONS=60} [2021-03-25 19:30:20,622 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 51 predicate places. [2021-03-25 19:30:20,622 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:20,622 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 60 transitions, 388 flow [2021-03-25 19:30:20,623 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 60 transitions, 388 flow [2021-03-25 19:30:20,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 60 transitions, 388 flow [2021-03-25 19:30:20,634 INFO L129 PetriNetUnfolder]: 25/289 cut-off events. [2021-03-25 19:30:20,635 INFO L130 PetriNetUnfolder]: For 229/229 co-relation queries the response was YES. [2021-03-25 19:30:20,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 711 conditions, 289 events. 25/289 cut-off events. For 229/229 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2252 event pairs, 1 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 607. Up to 49 conditions per place. [2021-03-25 19:30:20,636 INFO L142 LiptonReduction]: Number of co-enabled transitions 276 [2021-03-25 19:30:20,674 INFO L154 LiptonReduction]: Checked pairs total: 174 [2021-03-25 19:30:20,674 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 19:30:20,674 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-03-25 19:30:20,675 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 59 transitions, 384 flow [2021-03-25 19:30:20,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,675 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:20,675 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:20,675 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 19:30:20,675 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:20,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:20,676 INFO L82 PathProgramCache]: Analyzing trace with hash 55311510, now seen corresponding path program 1 times [2021-03-25 19:30:20,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:20,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342209844] [2021-03-25 19:30:20,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:20,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:20,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:30:20,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:20,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 19:30:20,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:20,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:20,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342209844] [2021-03-25 19:30:20,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:20,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 19:30:20,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752183740] [2021-03-25 19:30:20,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 19:30:20,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:20,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 19:30:20,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 19:30:20,702 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 79 [2021-03-25 19:30:20,702 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 59 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 45.333333333333336) internal successors, (272), 6 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,702 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:20,702 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 79 [2021-03-25 19:30:20,703 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:20,751 INFO L129 PetriNetUnfolder]: 18/188 cut-off events. [2021-03-25 19:30:20,751 INFO L130 PetriNetUnfolder]: For 293/319 co-relation queries the response was YES. [2021-03-25 19:30:20,751 INFO L84 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 188 events. 18/188 cut-off events. For 293/319 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1161 event pairs, 1 based on Foata normal form. 13/194 useless extension candidates. Maximal degree in co-relation 467. Up to 51 conditions per place. [2021-03-25 19:30:20,752 INFO L132 encePairwiseOnDemand]: 71/79 looper letters, 6 selfloop transitions, 3 changer transitions 15/65 dead transitions. [2021-03-25 19:30:20,752 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 65 transitions, 455 flow [2021-03-25 19:30:20,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 19:30:20,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 19:30:20,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 287 transitions. [2021-03-25 19:30:20,753 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6054852320675106 [2021-03-25 19:30:20,753 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 287 transitions. [2021-03-25 19:30:20,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 287 transitions. [2021-03-25 19:30:20,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:20,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 287 transitions. [2021-03-25 19:30:20,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 47.833333333333336) internal successors, (287), 6 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 79.0) internal successors, (553), 7 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,754 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 79.0) internal successors, (553), 7 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,754 INFO L185 Difference]: Start difference. First operand has 75 places, 59 transitions, 384 flow. Second operand 6 states and 287 transitions. [2021-03-25 19:30:20,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 65 transitions, 455 flow [2021-03-25 19:30:20,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 65 transitions, 397 flow, removed 10 selfloop flow, removed 13 redundant places. [2021-03-25 19:30:20,756 INFO L241 Difference]: Finished difference. Result has 67 places, 50 transitions, 296 flow [2021-03-25 19:30:20,756 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=296, PETRI_PLACES=67, PETRI_TRANSITIONS=50} [2021-03-25 19:30:20,756 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 33 predicate places. [2021-03-25 19:30:20,756 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:20,756 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 50 transitions, 296 flow [2021-03-25 19:30:20,757 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 50 transitions, 296 flow [2021-03-25 19:30:20,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 50 transitions, 296 flow [2021-03-25 19:30:20,763 INFO L129 PetriNetUnfolder]: 12/136 cut-off events. [2021-03-25 19:30:20,763 INFO L130 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2021-03-25 19:30:20,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 136 events. 12/136 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 796 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 302. Up to 33 conditions per place. [2021-03-25 19:30:20,764 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-25 19:30:20,990 INFO L154 LiptonReduction]: Checked pairs total: 90 [2021-03-25 19:30:20,990 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-25 19:30:20,990 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 234 [2021-03-25 19:30:20,991 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 48 transitions, 300 flow [2021-03-25 19:30:20,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 45.333333333333336) internal successors, (272), 6 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:20,991 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:30:20,991 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:30:20,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-25 19:30:20,991 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:30:20,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:30:20,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1166818098, now seen corresponding path program 1 times [2021-03-25 19:30:20,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:30:20,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213603335] [2021-03-25 19:30:20,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:30:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:30:20,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:20,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:21,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:21,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:21,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:21,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:21,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:21,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:30:21,018 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 19:30:21,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 19:30:21,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:30:21,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:30:21,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 19:30:21,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213603335] [2021-03-25 19:30:21,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:30:21,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 19:30:21,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590841953] [2021-03-25 19:30:21,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 19:30:21,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:30:21,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 19:30:21,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-25 19:30:21,026 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 89 [2021-03-25 19:30:21,026 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 300 flow. Second operand has 7 states, 7 states have (on average 45.142857142857146) internal successors, (316), 7 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:21,026 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:30:21,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 89 [2021-03-25 19:30:21,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:30:21,073 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-25 19:30:21,074 INFO L130 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2021-03-25 19:30:21,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 18 events. 0/18 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 7/25 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 19:30:21,074 INFO L132 encePairwiseOnDemand]: 78/89 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2021-03-25 19:30:21,074 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 16 transitions, 101 flow [2021-03-25 19:30:21,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 19:30:21,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 19:30:21,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 319 transitions. [2021-03-25 19:30:21,075 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5120385232744783 [2021-03-25 19:30:21,075 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 319 transitions. [2021-03-25 19:30:21,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 319 transitions. [2021-03-25 19:30:21,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:30:21,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 319 transitions. [2021-03-25 19:30:21,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 45.57142857142857) internal successors, (319), 7 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:21,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 89.0) internal successors, (712), 8 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:21,076 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 89.0) internal successors, (712), 8 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:21,076 INFO L185 Difference]: Start difference. First operand has 61 places, 48 transitions, 300 flow. Second operand 7 states and 319 transitions. [2021-03-25 19:30:21,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 16 transitions, 101 flow [2021-03-25 19:30:21,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 16 transitions, 61 flow, removed 0 selfloop flow, removed 16 redundant places. [2021-03-25 19:30:21,077 INFO L241 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2021-03-25 19:30:21,077 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2021-03-25 19:30:21,077 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places. [2021-03-25 19:30:21,077 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:30:21,077 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 0 transitions, 0 flow [2021-03-25 19:30:21,077 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 0 transitions, 0 flow [2021-03-25 19:30:21,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 19:30:21,077 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 19:30:21,077 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 19:30:21,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-25 19:30:21,077 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 19:30:21,077 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 19:30:21,078 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 19:30:21,078 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 19:30:21,078 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 19:30:21,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 45.142857142857146) internal successors, (316), 7 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:30:21,078 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-25 19:30:21,081 INFO L202 PluginConnector]: Adding new model lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 07:30:21 BasicIcfg [2021-03-25 19:30:21,081 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 19:30:21,081 INFO L168 Benchmark]: Toolchain (without parser) took 5706.67 ms. Allocated memory was 255.9 MB in the beginning and 505.4 MB in the end (delta: 249.6 MB). Free memory was 236.4 MB in the beginning and 352.7 MB in the end (delta: -116.3 MB). Peak memory consumption was 133.8 MB. Max. memory is 16.0 GB. [2021-03-25 19:30:21,081 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.68 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 19:30:21,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.23 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 234.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 19:30:21,081 INFO L168 Benchmark]: Boogie Preprocessor took 9.68 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 234.0 MB in the end (delta: 855.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 19:30:21,082 INFO L168 Benchmark]: RCFGBuilder took 230.86 ms. Allocated memory is still 255.9 MB. Free memory was 233.8 MB in the beginning and 237.7 MB in the end (delta: -3.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. [2021-03-25 19:30:21,082 INFO L168 Benchmark]: TraceAbstraction took 5439.89 ms. Allocated memory was 255.9 MB in the beginning and 505.4 MB in the end (delta: 249.6 MB). Free memory was 237.6 MB in the beginning and 352.7 MB in the end (delta: -115.1 MB). Peak memory consumption was 134.5 MB. Max. memory is 16.0 GB. [2021-03-25 19:30:21,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.68 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.23 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 234.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 9.68 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 234.0 MB in the end (delta: 855.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 230.86 ms. Allocated memory is still 255.9 MB. Free memory was 233.8 MB in the beginning and 237.7 MB in the end (delta: -3.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5439.89 ms. Allocated memory was 255.9 MB in the beginning and 505.4 MB in the end (delta: 249.6 MB). Free memory was 237.6 MB in the beginning and 352.7 MB in the end (delta: -115.1 MB). Peak memory consumption was 134.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 328.5ms, 46 PlacesBefore, 34 PlacesAfterwards, 36 TransitionsBefore, 24 TransitionsAfterwards, 412 CoEnabledTransitionPairs, 3 FixpointIterations, 4 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 992 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 434, positive: 362, positive conditional: 0, positive unconditional: 362, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 280, positive: 247, positive conditional: 0, positive unconditional: 247, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 280, positive: 247, positive conditional: 0, positive unconditional: 247, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 280, positive: 243, positive conditional: 0, positive unconditional: 243, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 37, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 130, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 434, positive: 115, positive conditional: 0, positive unconditional: 115, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 280, unknown conditional: 0, unknown unconditional: 280] , Statistics on independence cache: Total cache size (in pairs): 97, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 52.5ms, 40 PlacesBefore, 37 PlacesAfterwards, 34 TransitionsBefore, 33 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 702 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 269, positive: 212, positive conditional: 0, positive unconditional: 212, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 269, positive: 197, positive conditional: 0, positive unconditional: 197, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 18, unknown conditional: 0, unknown unconditional: 18] , Statistics on independence cache: Total cache size (in pairs): 111, Positive cache size: 92, Positive conditional cache size: 0, Positive unconditional cache size: 92, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.2ms, 50 PlacesBefore, 50 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 406 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 153, positive: 128, positive conditional: 0, positive unconditional: 128, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 153, positive: 124, positive conditional: 0, positive unconditional: 124, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 93, Positive conditional cache size: 0, Positive unconditional cache size: 93, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.2ms, 53 PlacesBefore, 53 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 365 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 123, positive: 99, positive conditional: 0, positive unconditional: 99, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 123, positive: 92, positive conditional: 0, positive unconditional: 92, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 99, Positive conditional cache size: 0, Positive unconditional cache size: 99, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.2ms, 65 PlacesBefore, 65 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 484 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 182 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 50, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 99, Positive conditional cache size: 0, Positive unconditional cache size: 99, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.6ms, 77 PlacesBefore, 77 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 248 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 54, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 99, Positive conditional cache size: 0, Positive unconditional cache size: 99, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.4ms, 85 PlacesBefore, 85 PlacesAfterwards, 74 TransitionsBefore, 74 TransitionsAfterwards, 546 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 283 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 75, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 75, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 116, Positive cache size: 101, Positive conditional cache size: 0, Positive unconditional cache size: 101, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 124.4ms, 82 PlacesBefore, 82 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 312 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 152, positive: 137, positive conditional: 0, positive unconditional: 137, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 152, positive: 132, positive conditional: 0, positive unconditional: 132, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 92, Positive conditional cache size: 0, Positive unconditional cache size: 92, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.9ms, 88 PlacesBefore, 88 PlacesAfterwards, 76 TransitionsBefore, 76 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 68 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 92, Positive conditional cache size: 0, Positive unconditional cache size: 92, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.2ms, 93 PlacesBefore, 93 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 476 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 153 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 73, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 73, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 90, Positive conditional cache size: 0, Positive unconditional cache size: 90, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 87.8ms, 99 PlacesBefore, 97 PlacesAfterwards, 81 TransitionsBefore, 81 TransitionsAfterwards, 526 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 126 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 108, positive: 102, positive conditional: 0, positive unconditional: 102, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 108, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 106, Positive conditional cache size: 0, Positive unconditional cache size: 106, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 84.4ms, 108 PlacesBefore, 106 PlacesAfterwards, 90 TransitionsBefore, 90 TransitionsAfterwards, 562 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 113, Positive conditional cache size: 0, Positive unconditional cache size: 113, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 61.4ms, 111 PlacesBefore, 111 PlacesAfterwards, 97 TransitionsBefore, 97 TransitionsAfterwards, 620 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 113, Positive conditional cache size: 0, Positive unconditional cache size: 113, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 60.1ms, 118 PlacesBefore, 117 PlacesAfterwards, 99 TransitionsBefore, 98 TransitionsAfterwards, 626 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 95, Positive conditional cache size: 0, Positive unconditional cache size: 95, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.8ms, 119 PlacesBefore, 111 PlacesAfterwards, 85 TransitionsBefore, 85 TransitionsAfterwards, 524 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 95, Positive conditional cache size: 0, Positive unconditional cache size: 95, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.9ms, 113 PlacesBefore, 111 PlacesAfterwards, 88 TransitionsBefore, 88 TransitionsAfterwards, 516 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 95, Positive conditional cache size: 0, Positive unconditional cache size: 95, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.9ms, 110 PlacesBefore, 110 PlacesAfterwards, 94 TransitionsBefore, 94 TransitionsAfterwards, 578 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 96, Positive conditional cache size: 0, Positive unconditional cache size: 96, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.0ms, 116 PlacesBefore, 115 PlacesAfterwards, 95 TransitionsBefore, 94 TransitionsAfterwards, 586 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 145.1ms, 114 PlacesBefore, 100 PlacesAfterwards, 71 TransitionsBefore, 70 TransitionsAfterwards, 390 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 41 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 41, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 41, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 66, Positive conditional cache size: 0, Positive unconditional cache size: 66, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 51.7ms, 85 PlacesBefore, 75 PlacesAfterwards, 60 TransitionsBefore, 59 TransitionsAfterwards, 276 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 174 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 137, positive: 126, positive conditional: 0, positive unconditional: 126, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 137, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 20, unknown conditional: 0, unknown unconditional: 20] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 233.5ms, 67 PlacesBefore, 61 PlacesAfterwards, 50 TransitionsBefore, 48 TransitionsAfterwards, 134 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 90 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 90, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 90, positive: 89, positive conditional: 0, positive unconditional: 89, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4ms, 31 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - PositiveResult [Line: 71]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 5328.1ms, OverallIterations: 21, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2555.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 404.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 161 SDtfs, 317 SDslu, 95 SDs, 0 SdLazy, 1560 SolverSat, 179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 594.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 196 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 972.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=933occurred in iteration=13, InterpolantAutomatonStates: 165, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.6ms SsaConstructionTime, 96.9ms SatisfiabilityAnalysisTime, 738.0ms InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 417 ConstructedInterpolants, 0 QuantifiedInterpolants, 1539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...