/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-RepeatedVariableLbe.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 09:32:46,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 09:32:46,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 09:32:46,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 09:32:46,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 09:32:46,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 09:32:46,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 09:32:46,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 09:32:46,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 09:32:46,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 09:32:46,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 09:32:46,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 09:32:46,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 09:32:46,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 09:32:46,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 09:32:46,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 09:32:46,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 09:32:46,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 09:32:46,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 09:32:46,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 09:32:46,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 09:32:46,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 09:32:46,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 09:32:46,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 09:32:46,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 09:32:46,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 09:32:46,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 09:32:46,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 09:32:46,400 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-RepeatedVariableLbe.epf [2021-03-25 09:32:46,426 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 09:32:46,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 09:32:46,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 09:32:46,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 09:32:46,428 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 09:32:46,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 09:32:46,428 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 09:32:46,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 09:32:46,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 09:32:46,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 09:32:46,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 09:32:46,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 09:32:46,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 09:32:46,429 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 09:32:46,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 09:32:46,430 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 09:32:46,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 09:32:46,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 09:32:46,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 09:32:46,431 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 09:32:46,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 09:32:46,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 09:32:46,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 09:32:46,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 09:32:46,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 09:32:46,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 09:32:46,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 09:32:46,432 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 09:32:46,433 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 09:32:46,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 09:32:46,433 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 09:32:46,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 09:32:46,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 09:32:46,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 09:32:46,759 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-25 09:32:46,764 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-25 09:32:46,768 INFO L432 ainManager$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 09:32:46,779 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 09:32:46,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 09:32:46,807 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-25 09:32:46,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 09:32:46,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 09:32:46,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 09:32:46,817 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 09:32:46" (1/1) ... [2021-03-25 09:32:46,826 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 09:32:46" (1/1) ... [2021-03-25 09:32:46,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 09:32:46,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 09:32:46,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 09:32:46,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 09:32:46,840 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 09:32:46" (1/1) ... [2021-03-25 09:32:46,840 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 09:32:46" (1/1) ... [2021-03-25 09:32:46,841 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 09:32:46" (1/1) ... [2021-03-25 09:32:46,841 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 09:32:46" (1/1) ... [2021-03-25 09:32:46,844 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 09:32:46" (1/1) ... [2021-03-25 09:32:46,844 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 09:32:46" (1/1) ... [2021-03-25 09:32:46,845 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 09:32:46" (1/1) ... [2021-03-25 09:32:46,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 09:32:46,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 09:32:46,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 09:32:46,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 09:32:46,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 09:32:46" (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 09:32:46,917 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-25 09:32:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-25 09:32:46,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-25 09:32:46,919 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-25 09:32:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-25 09:32:46,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-25 09:32:46,919 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-25 09:32:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 09:32:46,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 09:32:46,920 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-25 09:32:46,920 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-25 09:32:46,920 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-25 09:32:46,921 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 09:32:47,165 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 09:32:47,166 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-25 09:32:47,167 INFO L202 PluginConnector]: Adding new model lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 09:32:47 BoogieIcfgContainer [2021-03-25 09:32:47,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 09:32:47,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 09:32:47,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 09:32:47,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 09:32:47,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 09:32:46" (1/2) ... [2021-03-25 09:32:47,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f278036 and model type lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 09:32:47, skipping insertion in model container [2021-03-25 09:32:47,172 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 09:32:47" (2/2) ... [2021-03-25 09:32:47,173 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.wvr.bpl [2021-03-25 09:32:47,190 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 09:32:47,193 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 09:32:47,194 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 09:32:47,282 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-25 09:32:47,296 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-25 09:32:47,313 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 09:32:47,313 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 09:32:47,313 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 09:32:47,313 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 09:32:47,313 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 09:32:47,314 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 09:32:47,314 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 09:32:47,314 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 09:32:47,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 106 flow [2021-03-25 09:32:47,345 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-03-25 09:32:47,346 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 09:32:47,347 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 09:32:47,347 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 106 flow [2021-03-25 09:32:47,350 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 36 transitions, 90 flow [2021-03-25 09:32:47,351 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:47,359 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 36 transitions, 90 flow [2021-03-25 09:32:47,361 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 36 transitions, 90 flow [2021-03-25 09:32:47,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 36 transitions, 90 flow [2021-03-25 09:32:47,374 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-03-25 09:32:47,374 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 09:32:47,374 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 09:32:47,376 INFO L142 LiptonReduction]: Number of co-enabled transitions 412 [2021-03-25 09:32:47,553 INFO L154 LiptonReduction]: Checked pairs total: 1322 [2021-03-25 09:32:47,554 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-25 09:32:47,556 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 206 [2021-03-25 09:32:47,568 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-03-25 09:32:47,568 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 09:32:47,568 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:47,569 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, 1, 1, 1, 1] [2021-03-25 09:32:47,569 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:47,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:47,574 INFO L82 PathProgramCache]: Analyzing trace with hash -400902158, now seen corresponding path program 1 times [2021-03-25 09:32:47,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:47,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272140715] [2021-03-25 09:32:47,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:47,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:47,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:47,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:47,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:47,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:47,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:47,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:47,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:47,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:47,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:47,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:47,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:47,772 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 09:32:47,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272140715] [2021-03-25 09:32:47,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:47,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:32:47,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351803558] [2021-03-25 09:32:47,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 09:32:47,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:47,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 09:32:47,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 09:32:47,795 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 49 [2021-03-25 09:32:47,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 74 flow. Second operand has 7 states, 7 states have (on average 37.0) internal successors, (259), 7 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 09:32:47,797 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:47,798 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 49 [2021-03-25 09:32:47,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:47,994 INFO L129 PetriNetUnfolder]: 15/93 cut-off events. [2021-03-25 09:32:47,994 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-25 09:32:47,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 93 events. 15/93 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 354 event pairs, 1 based on Foata normal form. 1/94 useless extension candidates. Maximal degree in co-relation 134. Up to 23 conditions per place. [2021-03-25 09:32:47,998 INFO L132 encePairwiseOnDemand]: 42/49 looper letters, 12 selfloop transitions, 11 changer transitions 2/46 dead transitions. [2021-03-25 09:32:47,999 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 46 transitions, 160 flow [2021-03-25 09:32:47,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:32:48,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:32:48,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 350 transitions. [2021-03-25 09:32:48,019 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7936507936507936 [2021-03-25 09:32:48,020 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 350 transitions. [2021-03-25 09:32:48,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 350 transitions. [2021-03-25 09:32:48,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:48,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 350 transitions. [2021-03-25 09:32:48,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 38.888888888888886) internal successors, (350), 9 states have internal predecessors, (350), 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 09:32:48,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 49.0) internal successors, (490), 10 states have internal predecessors, (490), 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 09:32:48,042 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 49.0) internal successors, (490), 10 states have internal predecessors, (490), 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 09:32:48,044 INFO L185 Difference]: Start difference. First operand has 38 places, 28 transitions, 74 flow. Second operand 9 states and 350 transitions. [2021-03-25 09:32:48,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 46 transitions, 160 flow [2021-03-25 09:32:48,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 46 transitions, 148 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-25 09:32:48,050 INFO L241 Difference]: Finished difference. Result has 44 places, 38 transitions, 127 flow [2021-03-25 09:32:48,052 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=127, PETRI_PLACES=44, PETRI_TRANSITIONS=38} [2021-03-25 09:32:48,053 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 6 predicate places. [2021-03-25 09:32:48,053 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:48,053 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 38 transitions, 127 flow [2021-03-25 09:32:48,054 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 38 transitions, 127 flow [2021-03-25 09:32:48,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 38 transitions, 127 flow [2021-03-25 09:32:48,063 INFO L129 PetriNetUnfolder]: 5/66 cut-off events. [2021-03-25 09:32:48,063 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 09:32:48,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 66 events. 5/66 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 203 event pairs, 1 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 98. Up to 10 conditions per place. [2021-03-25 09:32:48,065 INFO L142 LiptonReduction]: Number of co-enabled transitions 360 [2021-03-25 09:32:48,118 INFO L154 LiptonReduction]: Checked pairs total: 942 [2021-03-25 09:32:48,118 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:32:48,118 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-03-25 09:32:48,119 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 126 flow [2021-03-25 09:32:48,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 37.0) internal successors, (259), 7 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 09:32:48,120 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:48,120 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, 1, 1, 1, 1] [2021-03-25 09:32:48,120 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 09:32:48,120 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:48,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:48,121 INFO L82 PathProgramCache]: Analyzing trace with hash -706202102, now seen corresponding path program 2 times [2021-03-25 09:32:48,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:48,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720883778] [2021-03-25 09:32:48,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:48,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:48,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:48,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:48,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:48,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:48,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:32:48,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:48,237 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 09:32:48,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720883778] [2021-03-25 09:32:48,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:48,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:32:48,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886384379] [2021-03-25 09:32:48,246 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 09:32:48,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:48,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 09:32:48,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 09:32:48,253 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 51 [2021-03-25 09:32:48,254 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 126 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 09:32:48,254 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:48,254 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 51 [2021-03-25 09:32:48,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:48,435 INFO L129 PetriNetUnfolder]: 78/314 cut-off events. [2021-03-25 09:32:48,435 INFO L130 PetriNetUnfolder]: For 15/17 co-relation queries the response was YES. [2021-03-25 09:32:48,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 314 events. 78/314 cut-off events. For 15/17 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1952 event pairs, 8 based on Foata normal form. 2/300 useless extension candidates. Maximal degree in co-relation 592. Up to 45 conditions per place. [2021-03-25 09:32:48,440 INFO L132 encePairwiseOnDemand]: 42/51 looper letters, 19 selfloop transitions, 17 changer transitions 0/64 dead transitions. [2021-03-25 09:32:48,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 64 transitions, 252 flow [2021-03-25 09:32:48,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:32:48,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:32:48,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 352 transitions. [2021-03-25 09:32:48,442 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7668845315904139 [2021-03-25 09:32:48,442 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 352 transitions. [2021-03-25 09:32:48,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 352 transitions. [2021-03-25 09:32:48,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:48,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 352 transitions. [2021-03-25 09:32:48,447 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 09:32:48,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 51.0) internal successors, (510), 10 states have internal predecessors, (510), 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 09:32:48,451 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 51.0) internal successors, (510), 10 states have internal predecessors, (510), 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 09:32:48,451 INFO L185 Difference]: Start difference. First operand has 41 places, 37 transitions, 126 flow. Second operand 9 states and 352 transitions. [2021-03-25 09:32:48,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 64 transitions, 252 flow [2021-03-25 09:32:48,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 64 transitions, 250 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 09:32:48,457 INFO L241 Difference]: Finished difference. Result has 54 places, 54 transitions, 240 flow [2021-03-25 09:32:48,457 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=240, PETRI_PLACES=54, PETRI_TRANSITIONS=54} [2021-03-25 09:32:48,458 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2021-03-25 09:32:48,458 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:48,458 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 54 transitions, 240 flow [2021-03-25 09:32:48,459 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 54 transitions, 240 flow [2021-03-25 09:32:48,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 54 transitions, 240 flow [2021-03-25 09:32:48,487 INFO L129 PetriNetUnfolder]: 42/221 cut-off events. [2021-03-25 09:32:48,487 INFO L130 PetriNetUnfolder]: For 65/67 co-relation queries the response was YES. [2021-03-25 09:32:48,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 221 events. 42/221 cut-off events. For 65/67 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1259 event pairs, 0 based on Foata normal form. 1/217 useless extension candidates. Maximal degree in co-relation 419. Up to 33 conditions per place. [2021-03-25 09:32:48,490 INFO L142 LiptonReduction]: Number of co-enabled transitions 518 [2021-03-25 09:32:48,527 INFO L154 LiptonReduction]: Checked pairs total: 673 [2021-03-25 09:32:48,527 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:48,531 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 73 [2021-03-25 09:32:48,532 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 54 transitions, 241 flow [2021-03-25 09:32:48,533 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 09:32:48,533 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:48,533 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, 1, 1] [2021-03-25 09:32:48,533 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 09:32:48,533 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:48,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:48,533 INFO L82 PathProgramCache]: Analyzing trace with hash 19261818, now seen corresponding path program 1 times [2021-03-25 09:32:48,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:48,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478783959] [2021-03-25 09:32:48,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:48,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:48,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:48,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:48,567 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 09:32:48,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478783959] [2021-03-25 09:32:48,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:48,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 09:32:48,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325575443] [2021-03-25 09:32:48,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 09:32:48,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:48,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 09:32:48,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 09:32:48,570 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 52 [2021-03-25 09:32:48,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 54 transitions, 241 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 09:32:48,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:48,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 52 [2021-03-25 09:32:48,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:48,594 INFO L129 PetriNetUnfolder]: 38/231 cut-off events. [2021-03-25 09:32:48,594 INFO L130 PetriNetUnfolder]: For 61/62 co-relation queries the response was YES. [2021-03-25 09:32:48,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 231 events. 38/231 cut-off events. For 61/62 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1339 event pairs, 3 based on Foata normal form. 3/226 useless extension candidates. Maximal degree in co-relation 437. Up to 31 conditions per place. [2021-03-25 09:32:48,597 INFO L132 encePairwiseOnDemand]: 49/52 looper letters, 2 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2021-03-25 09:32:48,597 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 53 transitions, 243 flow [2021-03-25 09:32:48,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 09:32:48,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 09:32:48,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2021-03-25 09:32:48,598 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2021-03-25 09:32:48,598 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 140 transitions. [2021-03-25 09:32:48,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 140 transitions. [2021-03-25 09:32:48,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:48,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 140 transitions. [2021-03-25 09:32:48,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 09:32:48,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 09:32:48,600 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 09:32:48,600 INFO L185 Difference]: Start difference. First operand has 54 places, 54 transitions, 241 flow. Second operand 3 states and 140 transitions. [2021-03-25 09:32:48,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 53 transitions, 243 flow [2021-03-25 09:32:48,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 243 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 09:32:48,603 INFO L241 Difference]: Finished difference. Result has 57 places, 53 transitions, 243 flow [2021-03-25 09:32:48,604 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=243, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2021-03-25 09:32:48,604 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2021-03-25 09:32:48,604 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:48,604 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 53 transitions, 243 flow [2021-03-25 09:32:48,604 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 53 transitions, 243 flow [2021-03-25 09:32:48,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 53 transitions, 243 flow [2021-03-25 09:32:48,618 INFO L129 PetriNetUnfolder]: 28/189 cut-off events. [2021-03-25 09:32:48,618 INFO L130 PetriNetUnfolder]: For 50/51 co-relation queries the response was YES. [2021-03-25 09:32:48,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 189 events. 28/189 cut-off events. For 50/51 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1021 event pairs, 1 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 348. Up to 25 conditions per place. [2021-03-25 09:32:48,620 INFO L142 LiptonReduction]: Number of co-enabled transitions 472 [2021-03-25 09:32:48,763 INFO L154 LiptonReduction]: Checked pairs total: 498 [2021-03-25 09:32:48,763 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 09:32:48,764 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 160 [2021-03-25 09:32:48,769 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 258 flow [2021-03-25 09:32:48,769 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 09:32:48,769 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:48,769 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, 1, 1] [2021-03-25 09:32:48,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 09:32:48,770 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:48,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:48,770 INFO L82 PathProgramCache]: Analyzing trace with hash 2110891172, now seen corresponding path program 2 times [2021-03-25 09:32:48,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:48,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963058918] [2021-03-25 09:32:48,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:48,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:48,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:48,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:48,802 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 09:32:48,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963058918] [2021-03-25 09:32:48,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:48,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 09:32:48,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118953056] [2021-03-25 09:32:48,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 09:32:48,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:48,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 09:32:48,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 09:32:48,804 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 59 [2021-03-25 09:32:48,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 09:32:48,805 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:48,805 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 59 [2021-03-25 09:32:48,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:48,835 INFO L129 PetriNetUnfolder]: 35/221 cut-off events. [2021-03-25 09:32:48,836 INFO L130 PetriNetUnfolder]: For 88/90 co-relation queries the response was YES. [2021-03-25 09:32:48,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 221 events. 35/221 cut-off events. For 88/90 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1293 event pairs, 4 based on Foata normal form. 4/215 useless extension candidates. Maximal degree in co-relation 447. Up to 30 conditions per place. [2021-03-25 09:32:48,838 INFO L132 encePairwiseOnDemand]: 56/59 looper letters, 2 selfloop transitions, 2 changer transitions 0/52 dead transitions. [2021-03-25 09:32:48,838 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 52 transitions, 266 flow [2021-03-25 09:32:48,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 09:32:48,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 09:32:48,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 158 transitions. [2021-03-25 09:32:48,839 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8926553672316384 [2021-03-25 09:32:48,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 158 transitions. [2021-03-25 09:32:48,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 158 transitions. [2021-03-25 09:32:48,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:48,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 158 transitions. [2021-03-25 09:32:48,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 09:32:48,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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 09:32:48,842 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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 09:32:48,842 INFO L185 Difference]: Start difference. First operand has 56 places, 52 transitions, 258 flow. Second operand 3 states and 158 transitions. [2021-03-25 09:32:48,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 52 transitions, 266 flow [2021-03-25 09:32:48,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 52 transitions, 252 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 09:32:48,848 INFO L241 Difference]: Finished difference. Result has 57 places, 52 transitions, 252 flow [2021-03-25 09:32:48,848 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=57, PETRI_TRANSITIONS=52} [2021-03-25 09:32:48,848 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2021-03-25 09:32:48,848 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:48,848 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 52 transitions, 252 flow [2021-03-25 09:32:48,849 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 52 transitions, 252 flow [2021-03-25 09:32:48,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 52 transitions, 252 flow [2021-03-25 09:32:48,866 INFO L129 PetriNetUnfolder]: 28/193 cut-off events. [2021-03-25 09:32:48,866 INFO L130 PetriNetUnfolder]: For 59/60 co-relation queries the response was YES. [2021-03-25 09:32:48,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 193 events. 28/193 cut-off events. For 59/60 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1075 event pairs, 2 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 371. Up to 23 conditions per place. [2021-03-25 09:32:48,869 INFO L142 LiptonReduction]: Number of co-enabled transitions 410 [2021-03-25 09:32:48,932 INFO L154 LiptonReduction]: Checked pairs total: 227 [2021-03-25 09:32:48,932 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:32:48,932 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84 [2021-03-25 09:32:48,933 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 51 transitions, 256 flow [2021-03-25 09:32:48,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 09:32:48,933 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:48,934 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, 1, 1, 1] [2021-03-25 09:32:48,934 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 09:32:48,934 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:48,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:48,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1337837896, now seen corresponding path program 1 times [2021-03-25 09:32:48,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:48,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474225553] [2021-03-25 09:32:48,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:49,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:49,085 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 09:32:49,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474225553] [2021-03-25 09:32:49,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:49,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:32:49,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843379116] [2021-03-25 09:32:49,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:32:49,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:49,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:32:49,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:32:49,097 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 62 [2021-03-25 09:32:49,098 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 51 transitions, 256 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 09:32:49,098 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:49,098 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 62 [2021-03-25 09:32:49,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:49,326 INFO L129 PetriNetUnfolder]: 97/442 cut-off events. [2021-03-25 09:32:49,326 INFO L130 PetriNetUnfolder]: For 403/439 co-relation queries the response was YES. [2021-03-25 09:32:49,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1201 conditions, 442 events. 97/442 cut-off events. For 403/439 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3161 event pairs, 15 based on Foata normal form. 5/436 useless extension candidates. Maximal degree in co-relation 1100. Up to 87 conditions per place. [2021-03-25 09:32:49,330 INFO L132 encePairwiseOnDemand]: 50/62 looper letters, 36 selfloop transitions, 20 changer transitions 0/82 dead transitions. [2021-03-25 09:32:49,330 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 82 transitions, 545 flow [2021-03-25 09:32:49,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:32:49,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:32:49,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 360 transitions. [2021-03-25 09:32:49,332 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6451612903225806 [2021-03-25 09:32:49,332 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 360 transitions. [2021-03-25 09:32:49,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 360 transitions. [2021-03-25 09:32:49,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:49,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 360 transitions. [2021-03-25 09:32:49,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 40.0) internal successors, (360), 9 states have internal predecessors, (360), 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 09:32:49,334 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 09:32:49,335 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 09:32:49,335 INFO L185 Difference]: Start difference. First operand has 56 places, 51 transitions, 256 flow. Second operand 9 states and 360 transitions. [2021-03-25 09:32:49,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 82 transitions, 545 flow [2021-03-25 09:32:49,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 82 transitions, 533 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 09:32:49,341 INFO L241 Difference]: Finished difference. Result has 69 places, 68 transitions, 449 flow [2021-03-25 09:32:49,341 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=449, PETRI_PLACES=69, PETRI_TRANSITIONS=68} [2021-03-25 09:32:49,341 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 31 predicate places. [2021-03-25 09:32:49,342 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:49,342 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 68 transitions, 449 flow [2021-03-25 09:32:49,342 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 68 transitions, 449 flow [2021-03-25 09:32:49,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 68 transitions, 449 flow [2021-03-25 09:32:49,368 INFO L129 PetriNetUnfolder]: 58/313 cut-off events. [2021-03-25 09:32:49,368 INFO L130 PetriNetUnfolder]: For 479/485 co-relation queries the response was YES. [2021-03-25 09:32:49,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 313 events. 58/313 cut-off events. For 479/485 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2116 event pairs, 2 based on Foata normal form. 1/305 useless extension candidates. Maximal degree in co-relation 804. Up to 43 conditions per place. [2021-03-25 09:32:49,372 INFO L142 LiptonReduction]: Number of co-enabled transitions 496 [2021-03-25 09:32:49,486 INFO L154 LiptonReduction]: Checked pairs total: 186 [2021-03-25 09:32:49,486 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 09:32:49,487 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 145 [2021-03-25 09:32:49,487 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 68 transitions, 456 flow [2021-03-25 09:32:49,487 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 09:32:49,487 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:49,488 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 09:32:49,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 09:32:49,488 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:49,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:49,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1518435758, now seen corresponding path program 1 times [2021-03-25 09:32:49,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:49,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160968286] [2021-03-25 09:32:49,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:49,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,547 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-25 09:32:49,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:49,559 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 09:32:49,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160968286] [2021-03-25 09:32:49,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:49,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:32:49,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130971219] [2021-03-25 09:32:49,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:32:49,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:49,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:32:49,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:32:49,562 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 67 [2021-03-25 09:32:49,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 68 transitions, 456 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 09:32:49,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:49,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 67 [2021-03-25 09:32:49,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:49,794 INFO L129 PetriNetUnfolder]: 111/491 cut-off events. [2021-03-25 09:32:49,795 INFO L130 PetriNetUnfolder]: For 1316/1389 co-relation queries the response was YES. [2021-03-25 09:32:49,797 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1627 conditions, 491 events. 111/491 cut-off events. For 1316/1389 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3606 event pairs, 19 based on Foata normal form. 31/512 useless extension candidates. Maximal degree in co-relation 1518. Up to 70 conditions per place. [2021-03-25 09:32:49,800 INFO L132 encePairwiseOnDemand]: 54/67 looper letters, 37 selfloop transitions, 25 changer transitions 0/88 dead transitions. [2021-03-25 09:32:49,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 88 transitions, 757 flow [2021-03-25 09:32:49,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:32:49,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:32:49,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 362 transitions. [2021-03-25 09:32:49,802 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6003316749585407 [2021-03-25 09:32:49,802 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 362 transitions. [2021-03-25 09:32:49,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 362 transitions. [2021-03-25 09:32:49,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:49,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 362 transitions. [2021-03-25 09:32:49,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 40.22222222222222) internal successors, (362), 9 states have internal predecessors, (362), 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 09:32:49,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 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 09:32:49,805 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 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 09:32:49,805 INFO L185 Difference]: Start difference. First operand has 69 places, 68 transitions, 456 flow. Second operand 9 states and 362 transitions. [2021-03-25 09:32:49,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 88 transitions, 757 flow [2021-03-25 09:32:49,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 88 transitions, 743 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-03-25 09:32:49,813 INFO L241 Difference]: Finished difference. Result has 79 places, 76 transitions, 603 flow [2021-03-25 09:32:49,813 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=603, PETRI_PLACES=79, PETRI_TRANSITIONS=76} [2021-03-25 09:32:49,814 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 41 predicate places. [2021-03-25 09:32:49,814 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:49,814 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 76 transitions, 603 flow [2021-03-25 09:32:49,814 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 76 transitions, 603 flow [2021-03-25 09:32:49,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 76 transitions, 603 flow [2021-03-25 09:32:49,843 INFO L129 PetriNetUnfolder]: 71/361 cut-off events. [2021-03-25 09:32:49,843 INFO L130 PetriNetUnfolder]: For 865/883 co-relation queries the response was YES. [2021-03-25 09:32:49,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 361 events. 71/361 cut-off events. For 865/883 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2544 event pairs, 2 based on Foata normal form. 1/356 useless extension candidates. Maximal degree in co-relation 1051. Up to 54 conditions per place. [2021-03-25 09:32:49,848 INFO L142 LiptonReduction]: Number of co-enabled transitions 560 [2021-03-25 09:32:49,891 INFO L154 LiptonReduction]: Checked pairs total: 125 [2021-03-25 09:32:49,891 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:49,891 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77 [2021-03-25 09:32:49,893 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 75 transitions, 601 flow [2021-03-25 09:32:49,893 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 09:32:49,893 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:49,893 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 09:32:49,893 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 09:32:49,893 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:49,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:49,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1880500785, now seen corresponding path program 1 times [2021-03-25 09:32:49,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:49,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967130639] [2021-03-25 09:32:49,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:49,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,978 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-25 09:32:49,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:49,989 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 09:32:49,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967130639] [2021-03-25 09:32:49,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:49,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:32:49,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124867470] [2021-03-25 09:32:49,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:32:49,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:49,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:32:49,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:32:49,993 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 68 [2021-03-25 09:32:49,993 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 75 transitions, 601 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 09:32:49,993 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:49,993 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 68 [2021-03-25 09:32:49,994 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:50,210 INFO L129 PetriNetUnfolder]: 98/462 cut-off events. [2021-03-25 09:32:50,210 INFO L130 PetriNetUnfolder]: For 1631/1691 co-relation queries the response was YES. [2021-03-25 09:32:50,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1641 conditions, 462 events. 98/462 cut-off events. For 1631/1691 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3367 event pairs, 15 based on Foata normal form. 6/461 useless extension candidates. Maximal degree in co-relation 1526. Up to 86 conditions per place. [2021-03-25 09:32:50,215 INFO L132 encePairwiseOnDemand]: 54/68 looper letters, 41 selfloop transitions, 21 changer transitions 0/87 dead transitions. [2021-03-25 09:32:50,215 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 87 transitions, 843 flow [2021-03-25 09:32:50,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:32:50,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:32:50,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 360 transitions. [2021-03-25 09:32:50,217 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5882352941176471 [2021-03-25 09:32:50,217 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 360 transitions. [2021-03-25 09:32:50,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 360 transitions. [2021-03-25 09:32:50,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:50,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 360 transitions. [2021-03-25 09:32:50,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 40.0) internal successors, (360), 9 states have internal predecessors, (360), 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 09:32:50,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 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 09:32:50,221 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 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 09:32:50,221 INFO L185 Difference]: Start difference. First operand has 78 places, 75 transitions, 601 flow. Second operand 9 states and 360 transitions. [2021-03-25 09:32:50,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 87 transitions, 843 flow [2021-03-25 09:32:50,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 87 transitions, 797 flow, removed 14 selfloop flow, removed 3 redundant places. [2021-03-25 09:32:50,231 INFO L241 Difference]: Finished difference. Result has 85 places, 74 transitions, 613 flow [2021-03-25 09:32:50,231 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=613, PETRI_PLACES=85, PETRI_TRANSITIONS=74} [2021-03-25 09:32:50,231 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 47 predicate places. [2021-03-25 09:32:50,232 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:50,232 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 74 transitions, 613 flow [2021-03-25 09:32:50,232 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 74 transitions, 613 flow [2021-03-25 09:32:50,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 74 transitions, 613 flow [2021-03-25 09:32:50,279 INFO L129 PetriNetUnfolder]: 59/331 cut-off events. [2021-03-25 09:32:50,279 INFO L130 PetriNetUnfolder]: For 670/680 co-relation queries the response was YES. [2021-03-25 09:32:50,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 331 events. 59/331 cut-off events. For 670/680 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2286 event pairs, 2 based on Foata normal form. 0/322 useless extension candidates. Maximal degree in co-relation 930. Up to 47 conditions per place. [2021-03-25 09:32:50,283 INFO L142 LiptonReduction]: Number of co-enabled transitions 522 [2021-03-25 09:32:50,335 INFO L154 LiptonReduction]: Checked pairs total: 139 [2021-03-25 09:32:50,336 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:50,336 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 104 [2021-03-25 09:32:50,337 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 74 transitions, 620 flow [2021-03-25 09:32:50,338 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 09:32:50,338 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:50,338 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 09:32:50,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 09:32:50,338 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:50,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:50,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1637777838, now seen corresponding path program 1 times [2021-03-25 09:32:50,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:50,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024854505] [2021-03-25 09:32:50,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:50,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:50,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:50,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:50,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:50,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:50,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:50,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:50,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:50,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:50,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:50,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:50,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:50,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:50,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:50,426 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 09:32:50,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024854505] [2021-03-25 09:32:50,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:50,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:32:50,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029151664] [2021-03-25 09:32:50,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:32:50,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:50,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:32:50,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:32:50,428 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 69 [2021-03-25 09:32:50,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 74 transitions, 620 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 09:32:50,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:50,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 69 [2021-03-25 09:32:50,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:50,623 INFO L129 PetriNetUnfolder]: 81/431 cut-off events. [2021-03-25 09:32:50,623 INFO L130 PetriNetUnfolder]: For 1345/1396 co-relation queries the response was YES. [2021-03-25 09:32:50,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1505 conditions, 431 events. 81/431 cut-off events. For 1345/1396 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3180 event pairs, 17 based on Foata normal form. 19/440 useless extension candidates. Maximal degree in co-relation 1393. Up to 67 conditions per place. [2021-03-25 09:32:50,628 INFO L132 encePairwiseOnDemand]: 55/69 looper letters, 34 selfloop transitions, 24 changer transitions 0/83 dead transitions. [2021-03-25 09:32:50,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 83 transitions, 811 flow [2021-03-25 09:32:50,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:32:50,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:32:50,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 361 transitions. [2021-03-25 09:32:50,630 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5813204508856683 [2021-03-25 09:32:50,630 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 361 transitions. [2021-03-25 09:32:50,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 361 transitions. [2021-03-25 09:32:50,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:50,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 361 transitions. [2021-03-25 09:32:50,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 40.111111111111114) internal successors, (361), 9 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 09:32:50,633 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 09:32:50,633 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 09:32:50,633 INFO L185 Difference]: Start difference. First operand has 85 places, 74 transitions, 620 flow. Second operand 9 states and 361 transitions. [2021-03-25 09:32:50,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 83 transitions, 811 flow [2021-03-25 09:32:50,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 83 transitions, 751 flow, removed 9 selfloop flow, removed 7 redundant places. [2021-03-25 09:32:50,642 INFO L241 Difference]: Finished difference. Result has 88 places, 73 transitions, 617 flow [2021-03-25 09:32:50,642 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=617, PETRI_PLACES=88, PETRI_TRANSITIONS=73} [2021-03-25 09:32:50,642 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 50 predicate places. [2021-03-25 09:32:50,643 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:50,643 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 73 transitions, 617 flow [2021-03-25 09:32:50,643 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 73 transitions, 617 flow [2021-03-25 09:32:50,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 73 transitions, 617 flow [2021-03-25 09:32:50,668 INFO L129 PetriNetUnfolder]: 48/320 cut-off events. [2021-03-25 09:32:50,669 INFO L130 PetriNetUnfolder]: For 571/580 co-relation queries the response was YES. [2021-03-25 09:32:50,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 956 conditions, 320 events. 48/320 cut-off events. For 571/580 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2217 event pairs, 2 based on Foata normal form. 1/314 useless extension candidates. Maximal degree in co-relation 864. Up to 43 conditions per place. [2021-03-25 09:32:50,673 INFO L142 LiptonReduction]: Number of co-enabled transitions 494 [2021-03-25 09:32:50,727 INFO L154 LiptonReduction]: Checked pairs total: 163 [2021-03-25 09:32:50,727 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:50,727 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84 [2021-03-25 09:32:50,727 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 73 transitions, 627 flow [2021-03-25 09:32:50,728 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 09:32:50,728 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:50,728 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 09:32:50,728 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 09:32:50,728 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:50,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:50,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1750034022, now seen corresponding path program 1 times [2021-03-25 09:32:50,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:50,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408618431] [2021-03-25 09:32:50,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:50,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:50,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:50,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:50,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:50,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:50,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:50,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:50,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:50,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:50,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:50,794 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 09:32:50,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:32:50,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:50,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:50,807 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 09:32:50,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408618431] [2021-03-25 09:32:50,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:50,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:32:50,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670914798] [2021-03-25 09:32:50,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:32:50,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:50,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:32:50,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:32:50,809 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 70 [2021-03-25 09:32:50,809 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 73 transitions, 627 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 09:32:50,809 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:50,809 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 70 [2021-03-25 09:32:50,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:51,011 INFO L129 PetriNetUnfolder]: 82/441 cut-off events. [2021-03-25 09:32:51,011 INFO L130 PetriNetUnfolder]: For 1294/1340 co-relation queries the response was YES. [2021-03-25 09:32:51,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1515 conditions, 441 events. 82/441 cut-off events. For 1294/1340 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3274 event pairs, 16 based on Foata normal form. 19/449 useless extension candidates. Maximal degree in co-relation 1397. Up to 67 conditions per place. [2021-03-25 09:32:51,015 INFO L132 encePairwiseOnDemand]: 54/70 looper letters, 33 selfloop transitions, 25 changer transitions 0/83 dead transitions. [2021-03-25 09:32:51,015 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 83 transitions, 818 flow [2021-03-25 09:32:51,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:32:51,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:32:51,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 363 transitions. [2021-03-25 09:32:51,017 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5761904761904761 [2021-03-25 09:32:51,017 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 363 transitions. [2021-03-25 09:32:51,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 363 transitions. [2021-03-25 09:32:51,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:51,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 363 transitions. [2021-03-25 09:32:51,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 40.333333333333336) internal successors, (363), 9 states have internal predecessors, (363), 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 09:32:51,020 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 09:32:51,020 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 09:32:51,020 INFO L185 Difference]: Start difference. First operand has 88 places, 73 transitions, 627 flow. Second operand 9 states and 363 transitions. [2021-03-25 09:32:51,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 83 transitions, 818 flow [2021-03-25 09:32:51,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 83 transitions, 758 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 09:32:51,028 INFO L241 Difference]: Finished difference. Result has 89 places, 75 transitions, 655 flow [2021-03-25 09:32:51,029 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=567, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=655, PETRI_PLACES=89, PETRI_TRANSITIONS=75} [2021-03-25 09:32:51,029 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 51 predicate places. [2021-03-25 09:32:51,029 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:51,029 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 75 transitions, 655 flow [2021-03-25 09:32:51,029 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 75 transitions, 655 flow [2021-03-25 09:32:51,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 75 transitions, 655 flow [2021-03-25 09:32:51,051 INFO L129 PetriNetUnfolder]: 48/321 cut-off events. [2021-03-25 09:32:51,052 INFO L130 PetriNetUnfolder]: For 788/800 co-relation queries the response was YES. [2021-03-25 09:32:51,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1011 conditions, 321 events. 48/321 cut-off events. For 788/800 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2287 event pairs, 2 based on Foata normal form. 3/318 useless extension candidates. Maximal degree in co-relation 907. Up to 43 conditions per place. [2021-03-25 09:32:51,055 INFO L142 LiptonReduction]: Number of co-enabled transitions 494 [2021-03-25 09:32:51,059 INFO L154 LiptonReduction]: Checked pairs total: 96 [2021-03-25 09:32:51,059 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:51,059 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-03-25 09:32:51,059 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 75 transitions, 655 flow [2021-03-25 09:32:51,060 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 09:32:51,060 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:51,060 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 09:32:51,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 09:32:51,060 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:51,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:51,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1843736016, now seen corresponding path program 2 times [2021-03-25 09:32:51,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:51,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013936430] [2021-03-25 09:32:51,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:51,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:51,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:51,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:51,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:51,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:51,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:32:51,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:51,160 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 09:32:51,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013936430] [2021-03-25 09:32:51,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:51,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:32:51,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956308819] [2021-03-25 09:32:51,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:32:51,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:51,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:32:51,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:32:51,163 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 70 [2021-03-25 09:32:51,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 75 transitions, 655 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 09:32:51,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:51,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 70 [2021-03-25 09:32:51,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:51,367 INFO L129 PetriNetUnfolder]: 69/397 cut-off events. [2021-03-25 09:32:51,367 INFO L130 PetriNetUnfolder]: For 1314/1347 co-relation queries the response was YES. [2021-03-25 09:32:51,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1388 conditions, 397 events. 69/397 cut-off events. For 1314/1347 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2882 event pairs, 15 based on Foata normal form. 13/399 useless extension candidates. Maximal degree in co-relation 1284. Up to 67 conditions per place. [2021-03-25 09:32:51,371 INFO L132 encePairwiseOnDemand]: 54/70 looper letters, 33 selfloop transitions, 23 changer transitions 0/81 dead transitions. [2021-03-25 09:32:51,371 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 81 transitions, 801 flow [2021-03-25 09:32:51,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:32:51,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:32:51,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 362 transitions. [2021-03-25 09:32:51,373 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5746031746031746 [2021-03-25 09:32:51,373 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 362 transitions. [2021-03-25 09:32:51,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 362 transitions. [2021-03-25 09:32:51,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:51,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 362 transitions. [2021-03-25 09:32:51,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 40.22222222222222) internal successors, (362), 9 states have internal predecessors, (362), 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 09:32:51,375 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 09:32:51,376 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 09:32:51,376 INFO L185 Difference]: Start difference. First operand has 89 places, 75 transitions, 655 flow. Second operand 9 states and 362 transitions. [2021-03-25 09:32:51,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 81 transitions, 801 flow [2021-03-25 09:32:51,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 81 transitions, 752 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-25 09:32:51,383 INFO L241 Difference]: Finished difference. Result has 92 places, 73 transitions, 633 flow [2021-03-25 09:32:51,384 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=633, PETRI_PLACES=92, PETRI_TRANSITIONS=73} [2021-03-25 09:32:51,384 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 54 predicate places. [2021-03-25 09:32:51,385 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:51,385 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 73 transitions, 633 flow [2021-03-25 09:32:51,385 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 73 transitions, 633 flow [2021-03-25 09:32:51,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 73 transitions, 633 flow [2021-03-25 09:32:51,410 INFO L129 PetriNetUnfolder]: 39/281 cut-off events. [2021-03-25 09:32:51,410 INFO L130 PetriNetUnfolder]: For 540/543 co-relation queries the response was YES. [2021-03-25 09:32:51,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 864 conditions, 281 events. 39/281 cut-off events. For 540/543 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1890 event pairs, 2 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 774. Up to 40 conditions per place. [2021-03-25 09:32:51,414 INFO L142 LiptonReduction]: Number of co-enabled transitions 466 [2021-03-25 09:32:51,455 INFO L154 LiptonReduction]: Checked pairs total: 171 [2021-03-25 09:32:51,455 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:51,455 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-25 09:32:51,456 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 73 transitions, 643 flow [2021-03-25 09:32:51,457 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 09:32:51,457 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:51,457 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 09:32:51,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 09:32:51,457 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:51,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:51,457 INFO L82 PathProgramCache]: Analyzing trace with hash 2063040525, now seen corresponding path program 1 times [2021-03-25 09:32:51,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:51,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356244626] [2021-03-25 09:32:51,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:51,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:51,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:51,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:51,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:51,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:51,516 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-25 09:32:51,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:32:51,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:51,527 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 09:32:51,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356244626] [2021-03-25 09:32:51,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:51,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:32:51,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845923479] [2021-03-25 09:32:51,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:32:51,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:51,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:32:51,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:32:51,529 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 71 [2021-03-25 09:32:51,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 73 transitions, 643 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 09:32:51,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:51,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 71 [2021-03-25 09:32:51,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:51,709 INFO L129 PetriNetUnfolder]: 69/403 cut-off events. [2021-03-25 09:32:51,709 INFO L130 PetriNetUnfolder]: For 1144/1172 co-relation queries the response was YES. [2021-03-25 09:32:51,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1395 conditions, 403 events. 69/403 cut-off events. For 1144/1172 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2925 event pairs, 6 based on Foata normal form. 3/401 useless extension candidates. Maximal degree in co-relation 1289. Up to 57 conditions per place. [2021-03-25 09:32:51,713 INFO L132 encePairwiseOnDemand]: 53/71 looper letters, 33 selfloop transitions, 28 changer transitions 0/86 dead transitions. [2021-03-25 09:32:51,713 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 86 transitions, 866 flow [2021-03-25 09:32:51,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:32:51,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:32:51,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 362 transitions. [2021-03-25 09:32:51,715 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5665101721439749 [2021-03-25 09:32:51,715 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 362 transitions. [2021-03-25 09:32:51,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 362 transitions. [2021-03-25 09:32:51,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:51,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 362 transitions. [2021-03-25 09:32:51,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 40.22222222222222) internal successors, (362), 9 states have internal predecessors, (362), 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 09:32:51,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 71.0) internal successors, (710), 10 states have internal predecessors, (710), 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 09:32:51,717 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 71.0) internal successors, (710), 10 states have internal predecessors, (710), 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 09:32:51,717 INFO L185 Difference]: Start difference. First operand has 92 places, 73 transitions, 643 flow. Second operand 9 states and 362 transitions. [2021-03-25 09:32:51,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 86 transitions, 866 flow [2021-03-25 09:32:51,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 86 transitions, 816 flow, removed 2 selfloop flow, removed 8 redundant places. [2021-03-25 09:32:51,726 INFO L241 Difference]: Finished difference. Result has 94 places, 77 transitions, 706 flow [2021-03-25 09:32:51,726 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=706, PETRI_PLACES=94, PETRI_TRANSITIONS=77} [2021-03-25 09:32:51,726 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 56 predicate places. [2021-03-25 09:32:51,726 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:51,726 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 77 transitions, 706 flow [2021-03-25 09:32:51,726 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 77 transitions, 706 flow [2021-03-25 09:32:51,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 77 transitions, 706 flow [2021-03-25 09:32:51,747 INFO L129 PetriNetUnfolder]: 40/293 cut-off events. [2021-03-25 09:32:51,747 INFO L130 PetriNetUnfolder]: For 645/652 co-relation queries the response was YES. [2021-03-25 09:32:51,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 944 conditions, 293 events. 40/293 cut-off events. For 645/652 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1994 event pairs, 2 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 848. Up to 41 conditions per place. [2021-03-25 09:32:51,750 INFO L142 LiptonReduction]: Number of co-enabled transitions 476 [2021-03-25 09:32:51,781 INFO L154 LiptonReduction]: Checked pairs total: 220 [2021-03-25 09:32:51,781 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:51,781 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-03-25 09:32:51,781 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 77 transitions, 708 flow [2021-03-25 09:32:51,782 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 09:32:51,782 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:51,782 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 09:32:51,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 09:32:51,782 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:51,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:51,783 INFO L82 PathProgramCache]: Analyzing trace with hash 515370229, now seen corresponding path program 1 times [2021-03-25 09:32:51,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:51,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113900187] [2021-03-25 09:32:51,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:51,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:51,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:51,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:51,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:51,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:51,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:51,823 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 09:32:51,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113900187] [2021-03-25 09:32:51,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:51,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:32:51,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380846361] [2021-03-25 09:32:51,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 09:32:51,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:51,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 09:32:51,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 09:32:51,825 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 72 [2021-03-25 09:32:51,826 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 77 transitions, 708 flow. Second operand has 7 states, 7 states have (on average 58.0) internal successors, (406), 7 states have internal predecessors, (406), 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 09:32:51,826 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:51,826 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 72 [2021-03-25 09:32:51,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:51,965 INFO L129 PetriNetUnfolder]: 97/577 cut-off events. [2021-03-25 09:32:51,965 INFO L130 PetriNetUnfolder]: For 1357/1399 co-relation queries the response was YES. [2021-03-25 09:32:51,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1966 conditions, 577 events. 97/577 cut-off events. For 1357/1399 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4683 event pairs, 4 based on Foata normal form. 25/595 useless extension candidates. Maximal degree in co-relation 1788. Up to 124 conditions per place. [2021-03-25 09:32:51,970 INFO L132 encePairwiseOnDemand]: 64/72 looper letters, 14 selfloop transitions, 17 changer transitions 2/93 dead transitions. [2021-03-25 09:32:51,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 93 transitions, 841 flow [2021-03-25 09:32:51,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:32:51,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:32:51,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 600 transitions. [2021-03-25 09:32:51,972 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2021-03-25 09:32:51,972 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 600 transitions. [2021-03-25 09:32:51,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 600 transitions. [2021-03-25 09:32:51,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:51,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 600 transitions. [2021-03-25 09:32:51,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 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 09:32:51,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 72.0) internal successors, (792), 11 states have internal predecessors, (792), 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 09:32:51,976 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 72.0) internal successors, (792), 11 states have internal predecessors, (792), 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 09:32:51,976 INFO L185 Difference]: Start difference. First operand has 94 places, 77 transitions, 708 flow. Second operand 10 states and 600 transitions. [2021-03-25 09:32:51,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 93 transitions, 841 flow [2021-03-25 09:32:51,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 93 transitions, 795 flow, removed 11 selfloop flow, removed 3 redundant places. [2021-03-25 09:32:51,985 INFO L241 Difference]: Finished difference. Result has 106 places, 86 transitions, 772 flow [2021-03-25 09:32:51,985 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=772, PETRI_PLACES=106, PETRI_TRANSITIONS=86} [2021-03-25 09:32:51,986 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 68 predicate places. [2021-03-25 09:32:51,986 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:51,986 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 86 transitions, 772 flow [2021-03-25 09:32:51,986 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 86 transitions, 772 flow [2021-03-25 09:32:51,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 86 transitions, 772 flow [2021-03-25 09:32:52,022 INFO L129 PetriNetUnfolder]: 64/485 cut-off events. [2021-03-25 09:32:52,023 INFO L130 PetriNetUnfolder]: For 1030/1040 co-relation queries the response was YES. [2021-03-25 09:32:52,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1661 conditions, 485 events. 64/485 cut-off events. For 1030/1040 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3883 event pairs, 6 based on Foata normal form. 2/476 useless extension candidates. Maximal degree in co-relation 1593. Up to 64 conditions per place. [2021-03-25 09:32:52,029 INFO L142 LiptonReduction]: Number of co-enabled transitions 512 [2021-03-25 09:32:52,064 INFO L154 LiptonReduction]: Checked pairs total: 12 [2021-03-25 09:32:52,065 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:32:52,065 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 79 [2021-03-25 09:32:52,065 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 86 transitions, 778 flow [2021-03-25 09:32:52,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 58.0) internal successors, (406), 7 states have internal predecessors, (406), 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 09:32:52,066 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:52,066 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 09:32:52,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 09:32:52,066 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:52,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:52,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1111554064, now seen corresponding path program 1 times [2021-03-25 09:32:52,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:52,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061170736] [2021-03-25 09:32:52,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:52,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:52,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:52,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:52,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:52,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:52,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:32:52,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:52,143 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 09:32:52,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061170736] [2021-03-25 09:32:52,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:52,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:32:52,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279774209] [2021-03-25 09:32:52,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:32:52,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:52,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:32:52,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:32:52,145 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 74 [2021-03-25 09:32:52,145 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 86 transitions, 778 flow. Second operand has 8 states, 8 states have (on average 38.125) internal successors, (305), 8 states have internal predecessors, (305), 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 09:32:52,145 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:52,146 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 74 [2021-03-25 09:32:52,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:52,338 INFO L129 PetriNetUnfolder]: 65/454 cut-off events. [2021-03-25 09:32:52,338 INFO L130 PetriNetUnfolder]: For 1409/1439 co-relation queries the response was YES. [2021-03-25 09:32:52,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1786 conditions, 454 events. 65/454 cut-off events. For 1409/1439 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3575 event pairs, 6 based on Foata normal form. 2/450 useless extension candidates. Maximal degree in co-relation 1729. Up to 67 conditions per place. [2021-03-25 09:32:52,342 INFO L132 encePairwiseOnDemand]: 56/74 looper letters, 33 selfloop transitions, 26 changer transitions 0/93 dead transitions. [2021-03-25 09:32:52,342 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 93 transitions, 941 flow [2021-03-25 09:32:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:32:52,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:32:52,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 379 transitions. [2021-03-25 09:32:52,343 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5690690690690691 [2021-03-25 09:32:52,343 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 379 transitions. [2021-03-25 09:32:52,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 379 transitions. [2021-03-25 09:32:52,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:52,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 379 transitions. [2021-03-25 09:32:52,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 42.111111111111114) internal successors, (379), 9 states have internal predecessors, (379), 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 09:32:52,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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 09:32:52,346 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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 09:32:52,346 INFO L185 Difference]: Start difference. First operand has 104 places, 86 transitions, 778 flow. Second operand 9 states and 379 transitions. [2021-03-25 09:32:52,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 93 transitions, 941 flow [2021-03-25 09:32:52,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 93 transitions, 920 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-25 09:32:52,355 INFO L241 Difference]: Finished difference. Result has 109 places, 84 transitions, 795 flow [2021-03-25 09:32:52,355 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=795, PETRI_PLACES=109, PETRI_TRANSITIONS=84} [2021-03-25 09:32:52,355 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 71 predicate places. [2021-03-25 09:32:52,355 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:52,355 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 84 transitions, 795 flow [2021-03-25 09:32:52,356 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 84 transitions, 795 flow [2021-03-25 09:32:52,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 84 transitions, 795 flow [2021-03-25 09:32:52,383 INFO L129 PetriNetUnfolder]: 47/395 cut-off events. [2021-03-25 09:32:52,383 INFO L130 PetriNetUnfolder]: For 1014/1023 co-relation queries the response was YES. [2021-03-25 09:32:52,385 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1391 conditions, 395 events. 47/395 cut-off events. For 1014/1023 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3087 event pairs, 4 based on Foata normal form. 1/387 useless extension candidates. Maximal degree in co-relation 1275. Up to 56 conditions per place. [2021-03-25 09:32:52,388 INFO L142 LiptonReduction]: Number of co-enabled transitions 472 [2021-03-25 09:32:52,427 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 09:32:52,427 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:52,427 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 72 [2021-03-25 09:32:52,428 INFO L480 AbstractCegarLoop]: Abstraction has has 109 places, 84 transitions, 808 flow [2021-03-25 09:32:52,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 38.125) internal successors, (305), 8 states have internal predecessors, (305), 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 09:32:52,428 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:52,428 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 09:32:52,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 09:32:52,428 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:52,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:52,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1689466347, now seen corresponding path program 2 times [2021-03-25 09:32:52,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:52,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787712449] [2021-03-25 09:32:52,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:52,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:52,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:52,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:52,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:52,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:52,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:52,462 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 09:32:52,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787712449] [2021-03-25 09:32:52,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:52,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:32:52,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178068840] [2021-03-25 09:32:52,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 09:32:52,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:52,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 09:32:52,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 09:32:52,464 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 75 [2021-03-25 09:32:52,465 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 84 transitions, 808 flow. Second operand has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 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 09:32:52,465 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:52,465 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 75 [2021-03-25 09:32:52,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:52,597 INFO L129 PetriNetUnfolder]: 60/486 cut-off events. [2021-03-25 09:32:52,597 INFO L130 PetriNetUnfolder]: For 1259/1355 co-relation queries the response was YES. [2021-03-25 09:32:52,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1801 conditions, 486 events. 60/486 cut-off events. For 1259/1355 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3979 event pairs, 3 based on Foata normal form. 43/515 useless extension candidates. Maximal degree in co-relation 1642. Up to 91 conditions per place. [2021-03-25 09:32:52,601 INFO L132 encePairwiseOnDemand]: 68/75 looper letters, 27 selfloop transitions, 14 changer transitions 3/102 dead transitions. [2021-03-25 09:32:52,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 102 transitions, 999 flow [2021-03-25 09:32:52,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:32:52,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:32:52,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 554 transitions. [2021-03-25 09:32:52,603 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8207407407407408 [2021-03-25 09:32:52,603 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 554 transitions. [2021-03-25 09:32:52,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 554 transitions. [2021-03-25 09:32:52,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:52,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 554 transitions. [2021-03-25 09:32:52,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 61.55555555555556) internal successors, (554), 9 states have internal predecessors, (554), 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 09:32:52,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 75.0) internal successors, (750), 10 states have internal predecessors, (750), 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 09:32:52,606 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 75.0) internal successors, (750), 10 states have internal predecessors, (750), 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 09:32:52,606 INFO L185 Difference]: Start difference. First operand has 109 places, 84 transitions, 808 flow. Second operand 9 states and 554 transitions. [2021-03-25 09:32:52,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 102 transitions, 999 flow [2021-03-25 09:32:52,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 102 transitions, 927 flow, removed 3 selfloop flow, removed 10 redundant places. [2021-03-25 09:32:52,617 INFO L241 Difference]: Finished difference. Result has 113 places, 90 transitions, 834 flow [2021-03-25 09:32:52,617 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=834, PETRI_PLACES=113, PETRI_TRANSITIONS=90} [2021-03-25 09:32:52,617 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 75 predicate places. [2021-03-25 09:32:52,617 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:52,617 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 90 transitions, 834 flow [2021-03-25 09:32:52,618 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 90 transitions, 834 flow [2021-03-25 09:32:52,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 90 transitions, 834 flow [2021-03-25 09:32:52,649 INFO L129 PetriNetUnfolder]: 36/406 cut-off events. [2021-03-25 09:32:52,649 INFO L130 PetriNetUnfolder]: For 961/982 co-relation queries the response was YES. [2021-03-25 09:32:52,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1486 conditions, 406 events. 36/406 cut-off events. For 961/982 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3311 event pairs, 2 based on Foata normal form. 7/405 useless extension candidates. Maximal degree in co-relation 1419. Up to 55 conditions per place. [2021-03-25 09:32:52,655 INFO L142 LiptonReduction]: Number of co-enabled transitions 496 [2021-03-25 09:32:52,676 INFO L154 LiptonReduction]: Checked pairs total: 6 [2021-03-25 09:32:52,677 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:52,677 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 60 [2021-03-25 09:32:52,677 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 90 transitions, 839 flow [2021-03-25 09:32:52,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 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 09:32:52,677 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:52,677 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 09:32:52,678 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 09:32:52,678 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:52,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:52,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1948734332, now seen corresponding path program 1 times [2021-03-25 09:32:52,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:52,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557204914] [2021-03-25 09:32:52,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:52,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:52,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:52,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:52,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:52,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:52,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:52,715 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 09:32:52,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557204914] [2021-03-25 09:32:52,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:52,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:32:52,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993177241] [2021-03-25 09:32:52,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 09:32:52,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:52,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 09:32:52,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 09:32:52,717 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 76 [2021-03-25 09:32:52,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 90 transitions, 839 flow. Second operand has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 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 09:32:52,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:52,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 76 [2021-03-25 09:32:52,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:52,853 INFO L129 PetriNetUnfolder]: 55/499 cut-off events. [2021-03-25 09:32:52,853 INFO L130 PetriNetUnfolder]: For 1556/1734 co-relation queries the response was YES. [2021-03-25 09:32:52,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1998 conditions, 499 events. 55/499 cut-off events. For 1556/1734 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4214 event pairs, 13 based on Foata normal form. 85/569 useless extension candidates. Maximal degree in co-relation 1909. Up to 109 conditions per place. [2021-03-25 09:32:52,857 INFO L132 encePairwiseOnDemand]: 68/76 looper letters, 29 selfloop transitions, 19 changer transitions 2/108 dead transitions. [2021-03-25 09:32:52,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 108 transitions, 1094 flow [2021-03-25 09:32:52,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:32:52,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:32:52,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 554 transitions. [2021-03-25 09:32:52,859 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8099415204678363 [2021-03-25 09:32:52,859 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 554 transitions. [2021-03-25 09:32:52,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 554 transitions. [2021-03-25 09:32:52,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:52,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 554 transitions. [2021-03-25 09:32:52,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 61.55555555555556) internal successors, (554), 9 states have internal predecessors, (554), 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 09:32:52,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 76.0) internal successors, (760), 10 states have internal predecessors, (760), 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 09:32:52,862 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 76.0) internal successors, (760), 10 states have internal predecessors, (760), 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 09:32:52,862 INFO L185 Difference]: Start difference. First operand has 111 places, 90 transitions, 839 flow. Second operand 9 states and 554 transitions. [2021-03-25 09:32:52,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 108 transitions, 1094 flow [2021-03-25 09:32:52,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 108 transitions, 1041 flow, removed 20 selfloop flow, removed 4 redundant places. [2021-03-25 09:32:52,873 INFO L241 Difference]: Finished difference. Result has 121 places, 97 transitions, 947 flow [2021-03-25 09:32:52,873 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=947, PETRI_PLACES=121, PETRI_TRANSITIONS=97} [2021-03-25 09:32:52,874 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 83 predicate places. [2021-03-25 09:32:52,874 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:52,874 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 97 transitions, 947 flow [2021-03-25 09:32:52,874 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 97 transitions, 947 flow [2021-03-25 09:32:52,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 97 transitions, 947 flow [2021-03-25 09:32:52,904 INFO L129 PetriNetUnfolder]: 32/422 cut-off events. [2021-03-25 09:32:52,905 INFO L130 PetriNetUnfolder]: For 1124/1139 co-relation queries the response was YES. [2021-03-25 09:32:52,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1607 conditions, 422 events. 32/422 cut-off events. For 1124/1139 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3538 event pairs, 2 based on Foata normal form. 13/429 useless extension candidates. Maximal degree in co-relation 1532. Up to 57 conditions per place. [2021-03-25 09:32:52,910 INFO L142 LiptonReduction]: Number of co-enabled transitions 524 [2021-03-25 09:32:52,960 INFO L154 LiptonReduction]: Checked pairs total: 40 [2021-03-25 09:32:52,960 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:32:52,960 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 86 [2021-03-25 09:32:52,961 INFO L480 AbstractCegarLoop]: Abstraction has has 118 places, 96 transitions, 959 flow [2021-03-25 09:32:52,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 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 09:32:52,961 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:52,961 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 09:32:52,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 09:32:52,961 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:52,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:52,962 INFO L82 PathProgramCache]: Analyzing trace with hash 500829958, now seen corresponding path program 1 times [2021-03-25 09:32:52,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:52,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990578859] [2021-03-25 09:32:52,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:52,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:52,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:52,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:52,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:52,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:52,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:52,987 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 09:32:52,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990578859] [2021-03-25 09:32:52,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:52,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 09:32:52,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561137320] [2021-03-25 09:32:52,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:32:52,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:52,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:32:52,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:32:53,007 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 79 [2021-03-25 09:32:53,007 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 96 transitions, 959 flow. Second operand has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 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 09:32:53,007 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:53,007 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 79 [2021-03-25 09:32:53,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:53,128 INFO L129 PetriNetUnfolder]: 47/518 cut-off events. [2021-03-25 09:32:53,128 INFO L130 PetriNetUnfolder]: For 1821/1987 co-relation queries the response was YES. [2021-03-25 09:32:53,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2147 conditions, 518 events. 47/518 cut-off events. For 1821/1987 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4564 event pairs, 4 based on Foata normal form. 89/592 useless extension candidates. Maximal degree in co-relation 2042. Up to 142 conditions per place. [2021-03-25 09:32:53,132 INFO L132 encePairwiseOnDemand]: 70/79 looper letters, 31 selfloop transitions, 17 changer transitions 2/107 dead transitions. [2021-03-25 09:32:53,132 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 107 transitions, 1159 flow [2021-03-25 09:32:53,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:32:53,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:32:53,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 499 transitions. [2021-03-25 09:32:53,133 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7895569620253164 [2021-03-25 09:32:53,133 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 499 transitions. [2021-03-25 09:32:53,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 499 transitions. [2021-03-25 09:32:53,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:53,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 499 transitions. [2021-03-25 09:32:53,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 62.375) internal successors, (499), 8 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 09:32:53,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 79.0) internal successors, (711), 9 states have internal predecessors, (711), 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 09:32:53,136 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 79.0) internal successors, (711), 9 states have internal predecessors, (711), 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 09:32:53,136 INFO L185 Difference]: Start difference. First operand has 118 places, 96 transitions, 959 flow. Second operand 8 states and 499 transitions. [2021-03-25 09:32:53,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 107 transitions, 1159 flow [2021-03-25 09:32:53,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 107 transitions, 1112 flow, removed 17 selfloop flow, removed 4 redundant places. [2021-03-25 09:32:53,149 INFO L241 Difference]: Finished difference. Result has 123 places, 103 transitions, 1038 flow [2021-03-25 09:32:53,149 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=918, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1038, PETRI_PLACES=123, PETRI_TRANSITIONS=103} [2021-03-25 09:32:53,149 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 85 predicate places. [2021-03-25 09:32:53,149 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:53,149 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 103 transitions, 1038 flow [2021-03-25 09:32:53,150 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 103 transitions, 1038 flow [2021-03-25 09:32:53,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 103 transitions, 1038 flow [2021-03-25 09:32:53,188 INFO L129 PetriNetUnfolder]: 39/477 cut-off events. [2021-03-25 09:32:53,188 INFO L130 PetriNetUnfolder]: For 1511/1524 co-relation queries the response was YES. [2021-03-25 09:32:53,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1820 conditions, 477 events. 39/477 cut-off events. For 1511/1524 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4157 event pairs, 2 based on Foata normal form. 13/484 useless extension candidates. Maximal degree in co-relation 1738. Up to 64 conditions per place. [2021-03-25 09:32:53,194 INFO L142 LiptonReduction]: Number of co-enabled transitions 518 [2021-03-25 09:32:53,221 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 09:32:53,221 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:53,221 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 72 [2021-03-25 09:32:53,221 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 102 transitions, 1030 flow [2021-03-25 09:32:53,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 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 09:32:53,222 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:53,222 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 09:32:53,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 09:32:53,222 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:53,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:53,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1294346670, now seen corresponding path program 2 times [2021-03-25 09:32:53,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:53,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312806493] [2021-03-25 09:32:53,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:53,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:53,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:53,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:53,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:53,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:53,248 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 09:32:53,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312806493] [2021-03-25 09:32:53,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:53,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 09:32:53,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156401132] [2021-03-25 09:32:53,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:32:53,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:53,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:32:53,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:32:53,250 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 80 [2021-03-25 09:32:53,251 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 102 transitions, 1030 flow. Second operand has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 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 09:32:53,251 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:53,251 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 80 [2021-03-25 09:32:53,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:53,374 INFO L129 PetriNetUnfolder]: 45/479 cut-off events. [2021-03-25 09:32:53,374 INFO L130 PetriNetUnfolder]: For 1922/2092 co-relation queries the response was YES. [2021-03-25 09:32:53,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2034 conditions, 479 events. 45/479 cut-off events. For 1922/2092 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4137 event pairs, 4 based on Foata normal form. 104/569 useless extension candidates. Maximal degree in co-relation 1942. Up to 119 conditions per place. [2021-03-25 09:32:53,378 INFO L132 encePairwiseOnDemand]: 70/80 looper letters, 26 selfloop transitions, 18 changer transitions 2/103 dead transitions. [2021-03-25 09:32:53,378 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 103 transitions, 1132 flow [2021-03-25 09:32:53,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 09:32:53,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 09:32:53,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 440 transitions. [2021-03-25 09:32:53,380 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7857142857142857 [2021-03-25 09:32:53,380 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 440 transitions. [2021-03-25 09:32:53,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 440 transitions. [2021-03-25 09:32:53,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:53,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 440 transitions. [2021-03-25 09:32:53,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 62.857142857142854) internal successors, (440), 7 states have internal predecessors, (440), 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 09:32:53,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 80.0) internal successors, (640), 8 states have internal predecessors, (640), 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 09:32:53,382 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 80.0) internal successors, (640), 8 states have internal predecessors, (640), 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 09:32:53,382 INFO L185 Difference]: Start difference. First operand has 121 places, 102 transitions, 1030 flow. Second operand 7 states and 440 transitions. [2021-03-25 09:32:53,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 103 transitions, 1132 flow [2021-03-25 09:32:53,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 103 transitions, 1093 flow, removed 15 selfloop flow, removed 2 redundant places. [2021-03-25 09:32:53,396 INFO L241 Difference]: Finished difference. Result has 126 places, 100 transitions, 1005 flow [2021-03-25 09:32:53,397 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=991, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1005, PETRI_PLACES=126, PETRI_TRANSITIONS=100} [2021-03-25 09:32:53,397 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 88 predicate places. [2021-03-25 09:32:53,397 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:53,397 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 100 transitions, 1005 flow [2021-03-25 09:32:53,397 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 100 transitions, 1005 flow [2021-03-25 09:32:53,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 100 transitions, 1005 flow [2021-03-25 09:32:53,431 INFO L129 PetriNetUnfolder]: 36/427 cut-off events. [2021-03-25 09:32:53,431 INFO L130 PetriNetUnfolder]: For 1313/1320 co-relation queries the response was YES. [2021-03-25 09:32:53,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1678 conditions, 427 events. 36/427 cut-off events. For 1313/1320 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3660 event pairs, 2 based on Foata normal form. 7/429 useless extension candidates. Maximal degree in co-relation 1603. Up to 49 conditions per place. [2021-03-25 09:32:53,437 INFO L142 LiptonReduction]: Number of co-enabled transitions 510 [2021-03-25 09:32:53,441 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:53,442 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:53,442 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-03-25 09:32:53,442 INFO L480 AbstractCegarLoop]: Abstraction has has 124 places, 100 transitions, 1005 flow [2021-03-25 09:32:53,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 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 09:32:53,442 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:53,442 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 09:32:53,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 09:32:53,443 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:53,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:53,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1427726109, now seen corresponding path program 1 times [2021-03-25 09:32:53,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:53,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775179611] [2021-03-25 09:32:53,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:53,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:53,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:53,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:53,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:53,463 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 09:32:53,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775179611] [2021-03-25 09:32:53,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:53,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 09:32:53,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192396386] [2021-03-25 09:32:53,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:32:53,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:53,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:32:53,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:32:53,465 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 80 [2021-03-25 09:32:53,465 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 100 transitions, 1005 flow. Second operand has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 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 09:32:53,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:53,466 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 80 [2021-03-25 09:32:53,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:53,549 INFO L129 PetriNetUnfolder]: 43/445 cut-off events. [2021-03-25 09:32:53,550 INFO L130 PetriNetUnfolder]: For 1663/1819 co-relation queries the response was YES. [2021-03-25 09:32:53,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1932 conditions, 445 events. 43/445 cut-off events. For 1663/1819 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3760 event pairs, 4 based on Foata normal form. 83/515 useless extension candidates. Maximal degree in co-relation 1851. Up to 128 conditions per place. [2021-03-25 09:32:53,553 INFO L132 encePairwiseOnDemand]: 71/80 looper letters, 28 selfloop transitions, 14 changer transitions 22/101 dead transitions. [2021-03-25 09:32:53,553 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 101 transitions, 1103 flow [2021-03-25 09:32:53,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 09:32:53,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 09:32:53,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 318 transitions. [2021-03-25 09:32:53,554 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.795 [2021-03-25 09:32:53,555 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 318 transitions. [2021-03-25 09:32:53,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 318 transitions. [2021-03-25 09:32:53,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:53,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 318 transitions. [2021-03-25 09:32:53,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 63.6) internal successors, (318), 5 states have internal predecessors, (318), 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 09:32:53,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 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 09:32:53,556 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 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 09:32:53,556 INFO L185 Difference]: Start difference. First operand has 124 places, 100 transitions, 1005 flow. Second operand 5 states and 318 transitions. [2021-03-25 09:32:53,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 101 transitions, 1103 flow [2021-03-25 09:32:53,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 101 transitions, 999 flow, removed 8 selfloop flow, removed 11 redundant places. [2021-03-25 09:32:53,568 INFO L241 Difference]: Finished difference. Result has 118 places, 78 transitions, 708 flow [2021-03-25 09:32:53,568 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=708, PETRI_PLACES=118, PETRI_TRANSITIONS=78} [2021-03-25 09:32:53,568 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 80 predicate places. [2021-03-25 09:32:53,569 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:53,569 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 78 transitions, 708 flow [2021-03-25 09:32:53,569 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 78 transitions, 708 flow [2021-03-25 09:32:53,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 78 transitions, 708 flow [2021-03-25 09:32:53,588 INFO L129 PetriNetUnfolder]: 24/285 cut-off events. [2021-03-25 09:32:53,589 INFO L130 PetriNetUnfolder]: For 583/597 co-relation queries the response was YES. [2021-03-25 09:32:53,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 979 conditions, 285 events. 24/285 cut-off events. For 583/597 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2076 event pairs, 1 based on Foata normal form. 1/279 useless extension candidates. Maximal degree in co-relation 894. Up to 37 conditions per place. [2021-03-25 09:32:53,592 INFO L142 LiptonReduction]: Number of co-enabled transitions 368 [2021-03-25 09:32:53,662 INFO L154 LiptonReduction]: Checked pairs total: 284 [2021-03-25 09:32:53,662 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:32:53,662 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 93 [2021-03-25 09:32:53,663 INFO L480 AbstractCegarLoop]: Abstraction has has 109 places, 78 transitions, 714 flow [2021-03-25 09:32:53,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 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 09:32:53,663 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:53,663 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 09:32:53,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 09:32:53,663 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:53,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:53,663 INFO L82 PathProgramCache]: Analyzing trace with hash 367326053, now seen corresponding path program 1 times [2021-03-25 09:32:53,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:53,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141533158] [2021-03-25 09:32:53,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:53,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:53,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:53,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:53,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:53,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:53,688 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 09:32:53,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141533158] [2021-03-25 09:32:53,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:53,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 09:32:53,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117354857] [2021-03-25 09:32:53,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:32:53,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:53,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:32:53,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:32:53,690 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 83 [2021-03-25 09:32:53,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 78 transitions, 714 flow. Second operand has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 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 09:32:53,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:53,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 83 [2021-03-25 09:32:53,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:53,782 INFO L129 PetriNetUnfolder]: 28/331 cut-off events. [2021-03-25 09:32:53,782 INFO L130 PetriNetUnfolder]: For 859/906 co-relation queries the response was YES. [2021-03-25 09:32:53,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1247 conditions, 331 events. 28/331 cut-off events. For 859/906 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2610 event pairs, 3 based on Foata normal form. 42/364 useless extension candidates. Maximal degree in co-relation 1145. Up to 81 conditions per place. [2021-03-25 09:32:53,785 INFO L132 encePairwiseOnDemand]: 74/83 looper letters, 24 selfloop transitions, 17 changer transitions 2/80 dead transitions. [2021-03-25 09:32:53,785 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 80 transitions, 815 flow [2021-03-25 09:32:53,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 09:32:53,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 09:32:53,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 459 transitions. [2021-03-25 09:32:53,786 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7900172117039587 [2021-03-25 09:32:53,786 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 459 transitions. [2021-03-25 09:32:53,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 459 transitions. [2021-03-25 09:32:53,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:53,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 459 transitions. [2021-03-25 09:32:53,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 65.57142857142857) internal successors, (459), 7 states have internal predecessors, (459), 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 09:32:53,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 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 09:32:53,788 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 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 09:32:53,788 INFO L185 Difference]: Start difference. First operand has 109 places, 78 transitions, 714 flow. Second operand 7 states and 459 transitions. [2021-03-25 09:32:53,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 80 transitions, 815 flow [2021-03-25 09:32:53,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 80 transitions, 729 flow, removed 10 selfloop flow, removed 17 redundant places. [2021-03-25 09:32:53,794 INFO L241 Difference]: Finished difference. Result has 100 places, 78 transitions, 672 flow [2021-03-25 09:32:53,795 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=672, PETRI_PLACES=100, PETRI_TRANSITIONS=78} [2021-03-25 09:32:53,795 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 62 predicate places. [2021-03-25 09:32:53,795 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:53,795 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 78 transitions, 672 flow [2021-03-25 09:32:53,795 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 78 transitions, 672 flow [2021-03-25 09:32:53,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 78 transitions, 672 flow [2021-03-25 09:32:53,823 INFO L129 PetriNetUnfolder]: 24/292 cut-off events. [2021-03-25 09:32:53,823 INFO L130 PetriNetUnfolder]: For 591/595 co-relation queries the response was YES. [2021-03-25 09:32:53,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 982 conditions, 292 events. 24/292 cut-off events. For 591/595 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2191 event pairs, 1 based on Foata normal form. 1/287 useless extension candidates. Maximal degree in co-relation 930. Up to 37 conditions per place. [2021-03-25 09:32:53,826 INFO L142 LiptonReduction]: Number of co-enabled transitions 334 [2021-03-25 09:32:53,829 INFO L154 LiptonReduction]: Checked pairs total: 14 [2021-03-25 09:32:53,829 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:53,829 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-25 09:32:53,829 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 78 transitions, 672 flow [2021-03-25 09:32:53,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 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 09:32:53,830 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:53,830 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 09:32:53,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 09:32:53,830 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:53,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:53,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1062580631, now seen corresponding path program 1 times [2021-03-25 09:32:53,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:53,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943501128] [2021-03-25 09:32:53,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:53,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:53,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:53,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:53,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:53,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:53,856 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 09:32:53,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943501128] [2021-03-25 09:32:53,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:53,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 09:32:53,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135877856] [2021-03-25 09:32:53,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:32:53,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:53,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:32:53,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:32:53,858 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 83 [2021-03-25 09:32:53,858 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 78 transitions, 672 flow. Second operand has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 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 09:32:53,858 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:53,858 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 83 [2021-03-25 09:32:53,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:53,940 INFO L129 PetriNetUnfolder]: 23/312 cut-off events. [2021-03-25 09:32:53,940 INFO L130 PetriNetUnfolder]: For 731/781 co-relation queries the response was YES. [2021-03-25 09:32:53,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1138 conditions, 312 events. 23/312 cut-off events. For 731/781 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2415 event pairs, 3 based on Foata normal form. 45/348 useless extension candidates. Maximal degree in co-relation 1072. Up to 74 conditions per place. [2021-03-25 09:32:53,942 INFO L132 encePairwiseOnDemand]: 74/83 looper letters, 25 selfloop transitions, 17 changer transitions 2/81 dead transitions. [2021-03-25 09:32:53,942 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 81 transitions, 783 flow [2021-03-25 09:32:53,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:32:53,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:32:53,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 522 transitions. [2021-03-25 09:32:53,944 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.786144578313253 [2021-03-25 09:32:53,944 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 522 transitions. [2021-03-25 09:32:53,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 522 transitions. [2021-03-25 09:32:53,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:53,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 522 transitions. [2021-03-25 09:32:53,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 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 09:32:53,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 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 09:32:53,946 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 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 09:32:53,946 INFO L185 Difference]: Start difference. First operand has 98 places, 78 transitions, 672 flow. Second operand 8 states and 522 transitions. [2021-03-25 09:32:53,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 81 transitions, 783 flow [2021-03-25 09:32:53,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 81 transitions, 739 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-25 09:32:53,952 INFO L241 Difference]: Finished difference. Result has 101 places, 78 transitions, 668 flow [2021-03-25 09:32:53,952 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=668, PETRI_PLACES=101, PETRI_TRANSITIONS=78} [2021-03-25 09:32:53,952 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 63 predicate places. [2021-03-25 09:32:53,952 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:53,952 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 78 transitions, 668 flow [2021-03-25 09:32:53,952 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 78 transitions, 668 flow [2021-03-25 09:32:53,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 78 transitions, 668 flow [2021-03-25 09:32:53,971 INFO L129 PetriNetUnfolder]: 20/284 cut-off events. [2021-03-25 09:32:53,971 INFO L130 PetriNetUnfolder]: For 556/559 co-relation queries the response was YES. [2021-03-25 09:32:53,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 943 conditions, 284 events. 20/284 cut-off events. For 556/559 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2136 event pairs, 1 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 891. Up to 37 conditions per place. [2021-03-25 09:32:53,974 INFO L142 LiptonReduction]: Number of co-enabled transitions 336 [2021-03-25 09:32:53,992 INFO L154 LiptonReduction]: Checked pairs total: 31 [2021-03-25 09:32:53,993 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:53,993 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-25 09:32:53,993 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 77 transitions, 664 flow [2021-03-25 09:32:53,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 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 09:32:53,993 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:53,993 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 09:32:53,993 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-25 09:32:53,994 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:53,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:53,994 INFO L82 PathProgramCache]: Analyzing trace with hash 850417161, now seen corresponding path program 2 times [2021-03-25 09:32:53,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:53,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324490241] [2021-03-25 09:32:53,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:54,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:54,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:54,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:54,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:54,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:54,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:32:54,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:54,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:54,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:54,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:54,020 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 09:32:54,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324490241] [2021-03-25 09:32:54,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:54,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 09:32:54,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205477738] [2021-03-25 09:32:54,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:32:54,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:54,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:32:54,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:32:54,022 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 84 [2021-03-25 09:32:54,023 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 77 transitions, 664 flow. Second operand has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 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 09:32:54,023 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:54,023 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 84 [2021-03-25 09:32:54,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:54,094 INFO L129 PetriNetUnfolder]: 22/281 cut-off events. [2021-03-25 09:32:54,095 INFO L130 PetriNetUnfolder]: For 692/740 co-relation queries the response was YES. [2021-03-25 09:32:54,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1038 conditions, 281 events. 22/281 cut-off events. For 692/740 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2106 event pairs, 3 based on Foata normal form. 43/315 useless extension candidates. Maximal degree in co-relation 984. Up to 74 conditions per place. [2021-03-25 09:32:54,096 INFO L132 encePairwiseOnDemand]: 75/84 looper letters, 24 selfloop transitions, 12 changer transitions 25/77 dead transitions. [2021-03-25 09:32:54,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 77 transitions, 744 flow [2021-03-25 09:32:54,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 09:32:54,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 09:32:54,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 332 transitions. [2021-03-25 09:32:54,097 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7904761904761904 [2021-03-25 09:32:54,097 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 332 transitions. [2021-03-25 09:32:54,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 332 transitions. [2021-03-25 09:32:54,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:54,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 332 transitions. [2021-03-25 09:32:54,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 66.4) internal successors, (332), 5 states have internal predecessors, (332), 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 09:32:54,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 84.0) internal successors, (504), 6 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 09:32:54,099 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 84.0) internal successors, (504), 6 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 09:32:54,099 INFO L185 Difference]: Start difference. First operand has 99 places, 77 transitions, 664 flow. Second operand 5 states and 332 transitions. [2021-03-25 09:32:54,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 77 transitions, 744 flow [2021-03-25 09:32:54,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 77 transitions, 651 flow, removed 8 selfloop flow, removed 10 redundant places. [2021-03-25 09:32:54,104 INFO L241 Difference]: Finished difference. Result has 94 places, 52 transitions, 362 flow [2021-03-25 09:32:54,104 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=362, PETRI_PLACES=94, PETRI_TRANSITIONS=52} [2021-03-25 09:32:54,104 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 56 predicate places. [2021-03-25 09:32:54,104 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:54,105 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 52 transitions, 362 flow [2021-03-25 09:32:54,105 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 52 transitions, 362 flow [2021-03-25 09:32:54,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 52 transitions, 362 flow [2021-03-25 09:32:54,114 INFO L129 PetriNetUnfolder]: 13/159 cut-off events. [2021-03-25 09:32:54,114 INFO L130 PetriNetUnfolder]: For 151/151 co-relation queries the response was YES. [2021-03-25 09:32:54,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 159 events. 13/159 cut-off events. For 151/151 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 940 event pairs, 1 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 407. Up to 32 conditions per place. [2021-03-25 09:32:54,116 INFO L142 LiptonReduction]: Number of co-enabled transitions 196 [2021-03-25 09:32:54,143 INFO L154 LiptonReduction]: Checked pairs total: 303 [2021-03-25 09:32:54,143 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:54,143 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-25 09:32:54,143 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 51 transitions, 360 flow [2021-03-25 09:32:54,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 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 09:32:54,144 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:54,144 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 09:32:54,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-25 09:32:54,144 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:32:54,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:54,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1522817242, now seen corresponding path program 1 times [2021-03-25 09:32:54,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:54,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645726970] [2021-03-25 09:32:54,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:54,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:54,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:54,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:54,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:54,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:54,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:32:54,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:54,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:54,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:54,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:32:54,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:54,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:32:54,183 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 09:32:54,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645726970] [2021-03-25 09:32:54,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:54,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:32:54,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702700016] [2021-03-25 09:32:54,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 09:32:54,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:54,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 09:32:54,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 09:32:54,185 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 85 [2021-03-25 09:32:54,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 51 transitions, 360 flow. Second operand has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 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 09:32:54,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:54,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 85 [2021-03-25 09:32:54,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:54,234 INFO L129 PetriNetUnfolder]: 3/40 cut-off events. [2021-03-25 09:32:54,234 INFO L130 PetriNetUnfolder]: For 90/96 co-relation queries the response was YES. [2021-03-25 09:32:54,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 40 events. 3/40 cut-off events. For 90/96 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 109 event pairs, 1 based on Foata normal form. 3/43 useless extension candidates. Maximal degree in co-relation 146. Up to 8 conditions per place. [2021-03-25 09:32:54,235 INFO L132 encePairwiseOnDemand]: 79/85 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2021-03-25 09:32:54,235 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 24 transitions, 181 flow [2021-03-25 09:32:54,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:32:54,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:32:54,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 350 transitions. [2021-03-25 09:32:54,236 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5147058823529411 [2021-03-25 09:32:54,236 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 350 transitions. [2021-03-25 09:32:54,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 350 transitions. [2021-03-25 09:32:54,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:54,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 350 transitions. [2021-03-25 09:32:54,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 43.75) internal successors, (350), 8 states have internal predecessors, (350), 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 09:32:54,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 85.0) internal successors, (765), 9 states have internal predecessors, (765), 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 09:32:54,238 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 85.0) internal successors, (765), 9 states have internal predecessors, (765), 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 09:32:54,238 INFO L185 Difference]: Start difference. First operand has 73 places, 51 transitions, 360 flow. Second operand 8 states and 350 transitions. [2021-03-25 09:32:54,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 24 transitions, 181 flow [2021-03-25 09:32:54,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 24 transitions, 106 flow, removed 16 selfloop flow, removed 22 redundant places. [2021-03-25 09:32:54,239 INFO L241 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2021-03-25 09:32:54,239 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2021-03-25 09:32:54,239 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 2 predicate places. [2021-03-25 09:32:54,239 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:54,240 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 0 transitions, 0 flow [2021-03-25 09:32:54,240 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 0 transitions, 0 flow [2021-03-25 09:32:54,240 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 09:32:54,240 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 09:32:54,240 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 09:32:54,240 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 09:32:54,240 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 09:32:54,240 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:54,240 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:54,241 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-25 09:32:54,241 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 09:32:54,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 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 09:32:54,241 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-25 09:32:54,244 INFO L202 PluginConnector]: Adding new model lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 09:32:54 BasicIcfg [2021-03-25 09:32:54,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 09:32:54,245 INFO L168 Benchmark]: Toolchain (without parser) took 7437.85 ms. Allocated memory was 255.9 MB in the beginning and 438.3 MB in the end (delta: 182.5 MB). Free memory was 236.8 MB in the beginning and 296.4 MB in the end (delta: -59.6 MB). Peak memory consumption was 123.0 MB. Max. memory is 16.0 GB. [2021-03-25 09:32:54,245 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 09:32:54,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.00 ms. Allocated memory is still 255.9 MB. Free memory was 236.6 MB in the beginning and 235.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 09:32:54,245 INFO L168 Benchmark]: Boogie Preprocessor took 12.22 ms. Allocated memory is still 255.9 MB. Free memory was 235.2 MB in the beginning and 234.3 MB in the end (delta: 851.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 09:32:54,245 INFO L168 Benchmark]: RCFGBuilder took 320.46 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 240.0 MB in the end (delta: -5.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.0 GB. [2021-03-25 09:32:54,246 INFO L168 Benchmark]: TraceAbstraction took 7076.22 ms. Allocated memory was 255.9 MB in the beginning and 438.3 MB in the end (delta: 182.5 MB). Free memory was 240.0 MB in the beginning and 296.4 MB in the end (delta: -56.4 MB). Peak memory consumption was 126.5 MB. Max. memory is 16.0 GB. [2021-03-25 09:32:54,246 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 0.20 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.00 ms. Allocated memory is still 255.9 MB. Free memory was 236.6 MB in the beginning and 235.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.22 ms. Allocated memory is still 255.9 MB. Free memory was 235.2 MB in the beginning and 234.3 MB in the end (delta: 851.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 320.46 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 240.0 MB in the end (delta: -5.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7076.22 ms. Allocated memory was 255.9 MB in the beginning and 438.3 MB in the end (delta: 182.5 MB). Free memory was 240.0 MB in the beginning and 296.4 MB in the end (delta: -56.4 MB). Peak memory consumption was 126.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 192.4ms, 46 PlacesBefore, 38 PlacesAfterwards, 36 TransitionsBefore, 28 TransitionsAfterwards, 412 CoEnabledTransitionPairs, 3 FixpointIterations, 4 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 1322 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 564, positive: 470, positive conditional: 0, positive unconditional: 470, negative: 94, negative conditional: 0, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 179, positive: 163, positive conditional: 0, positive unconditional: 163, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 179, positive: 163, positive conditional: 0, positive unconditional: 163, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 564, positive: 307, positive conditional: 0, positive unconditional: 307, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 179, unknown conditional: 0, unknown unconditional: 179] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.3ms, 44 PlacesBefore, 41 PlacesAfterwards, 38 TransitionsBefore, 37 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 942 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 375, positive: 310, positive conditional: 0, positive unconditional: 310, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 375, positive: 297, positive conditional: 0, positive unconditional: 297, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 14, unknown conditional: 0, unknown unconditional: 14] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 94, Positive conditional cache size: 0, Positive unconditional cache size: 94, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.5ms, 54 PlacesBefore, 54 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 518 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 673 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 265, positive: 227, positive conditional: 0, positive unconditional: 227, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.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] , Cache Queries: [ total: 265, positive: 223, positive conditional: 0, positive unconditional: 223, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , 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: 159.3ms, 57 PlacesBefore, 56 PlacesAfterwards, 53 TransitionsBefore, 52 TransitionsAfterwards, 472 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 498 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 300, positive: 276, positive conditional: 0, positive unconditional: 276, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 300, positive: 263, positive conditional: 0, positive unconditional: 263, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 13, unknown conditional: 0, unknown unconditional: 13] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 94, Positive conditional cache size: 0, Positive unconditional cache size: 94, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 83.6ms, 57 PlacesBefore, 56 PlacesAfterwards, 52 TransitionsBefore, 51 TransitionsAfterwards, 410 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 227 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 86, positive: 74, positive conditional: 0, positive unconditional: 74, 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: 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] , Cache Queries: [ total: 86, positive: 74, positive conditional: 0, positive unconditional: 74, 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): 86, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 144.4ms, 69 PlacesBefore, 69 PlacesAfterwards, 68 TransitionsBefore, 68 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 186 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 114, positive: 108, positive conditional: 0, positive unconditional: 108, 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: 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: 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] , Cache Queries: [ total: 114, positive: 105, positive conditional: 0, positive unconditional: 105, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 77.0ms, 79 PlacesBefore, 78 PlacesAfterwards, 76 TransitionsBefore, 75 TransitionsAfterwards, 560 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 125 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 44, positive conditional: 0, positive unconditional: 44, 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: 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: 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] , Cache Queries: [ total: 50, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 103.8ms, 85 PlacesBefore, 85 PlacesAfterwards, 74 TransitionsBefore, 74 TransitionsAfterwards, 522 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 139 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 8, negative conditional: 0, negative unconditional: 8, 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: 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] , Cache Queries: [ total: 35, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 84.0ms, 88 PlacesBefore, 88 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 494 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 163 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 43, positive: 33, positive conditional: 0, positive unconditional: 33, 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: 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] , Cache Queries: [ total: 43, positive: 30, positive conditional: 0, positive unconditional: 30, 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): 66, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.7ms, 89 PlacesBefore, 89 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 494 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 96 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 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: 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] , Cache Queries: [ total: 18, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.5ms, 92 PlacesBefore, 92 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 466 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 171 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 27, positive conditional: 0, positive unconditional: 27, 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: 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: 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] , Cache Queries: [ total: 39, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 54.3ms, 94 PlacesBefore, 94 PlacesAfterwards, 77 TransitionsBefore, 77 TransitionsAfterwards, 476 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 220 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 66, positive: 52, positive conditional: 0, positive unconditional: 52, 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: 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: 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] , Cache Queries: [ total: 66, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 65, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 78.7ms, 106 PlacesBefore, 104 PlacesAfterwards, 86 TransitionsBefore, 86 TransitionsAfterwards, 512 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , 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: 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] , Cache Queries: [ total: 12, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 71.6ms, 109 PlacesBefore, 109 PlacesAfterwards, 84 TransitionsBefore, 84 TransitionsAfterwards, 472 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: 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: 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] , Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59.0ms, 113 PlacesBefore, 111 PlacesAfterwards, 90 TransitionsBefore, 90 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 6 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 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] , Cache Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, 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): 71, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 86.1ms, 121 PlacesBefore, 118 PlacesAfterwards, 97 TransitionsBefore, 96 TransitionsAfterwards, 524 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 40 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 1, negative conditional: 0, negative unconditional: 1, 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: SyntacticIndependenceRelation.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] , Cache Queries: [ total: 32, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 71.3ms, 123 PlacesBefore, 121 PlacesAfterwards, 103 TransitionsBefore, 102 TransitionsAfterwards, 518 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , 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: 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] , Cache 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] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.5ms, 126 PlacesBefore, 124 PlacesAfterwards, 100 TransitionsBefore, 100 TransitionsAfterwards, 510 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: 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] , 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): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 93.2ms, 118 PlacesBefore, 109 PlacesAfterwards, 78 TransitionsBefore, 78 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 284 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 145, positive: 128, positive conditional: 0, positive unconditional: 128, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 145, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 18, unknown conditional: 0, unknown unconditional: 18] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.6ms, 100 PlacesBefore, 98 PlacesAfterwards, 78 TransitionsBefore, 78 TransitionsAfterwards, 334 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 14 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 1, negative conditional: 0, negative unconditional: 1, 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: 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] , Cache Queries: [ total: 11, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.0ms, 101 PlacesBefore, 99 PlacesAfterwards, 78 TransitionsBefore, 77 TransitionsAfterwards, 336 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 31 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 2, negative conditional: 0, negative unconditional: 2, 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: 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] , Cache Queries: [ total: 23, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.2ms, 94 PlacesBefore, 73 PlacesAfterwards, 52 TransitionsBefore, 51 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 303 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 219, positive: 195, positive conditional: 0, positive unconditional: 195, 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: 7, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 219, positive: 189, positive conditional: 0, positive unconditional: 189, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 40 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: 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] , 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): 58, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - 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: 7.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 6932.0ms, OverallIterations: 22, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3582.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 246.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 201 SDtfs, 382 SDslu, 116 SDs, 0 SdLazy, 1912 SolverSat, 283 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 946.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 202 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1318.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1038occurred in iteration=16, InterpolantAutomatonStates: 172, 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: 31.6ms SsaConstructionTime, 148.8ms SatisfiabilityAnalysisTime, 1128.5ms InterpolantComputationTime, 474 NumberOfCodeBlocks, 474 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 452 ConstructedInterpolants, 0 QuantifiedInterpolants, 1654 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 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...