/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 08:46:15,712 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 08:46:15,799 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 08:46:15,827 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 08:46:15,829 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 08:46:15,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 08:46:15,830 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 08:46:15,830 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 08:46:15,830 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 08:46:15,834 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 08:46:15,835 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 08:46:15,835 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 08:46:15,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 08:46:15,836 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 08:46:15,836 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 08:46:15,837 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 08:46:15,837 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 08:46:15,837 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 08:46:15,837 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 08:46:15,838 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 08:46:15,838 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 08:46:15,839 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 08:46:15,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 08:46:15,840 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 08:46:15,840 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 08:46:15,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:46:15,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 08:46:15,841 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 08:46:15,841 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 08:46:15,841 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 08:46:15,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 08:46:15,842 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 08:46:15,842 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 08:46:15,843 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 08:46:16,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 08:46:16,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 08:46:16,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 08:46:16,079 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 08:46:16,080 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 08:46:16,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c [2023-11-30 08:46:17,240 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 08:46:17,432 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 08:46:17,433 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c [2023-11-30 08:46:17,449 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e31cf212b/79d003815b3244d4a50a2c35160630c1/FLAGfa9c334bb [2023-11-30 08:46:17,460 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e31cf212b/79d003815b3244d4a50a2c35160630c1 [2023-11-30 08:46:17,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 08:46:17,463 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 08:46:17,469 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 08:46:17,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 08:46:17,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 08:46:17,473 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:46:17" (1/1) ... [2023-11-30 08:46:17,474 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef34d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:46:17, skipping insertion in model container [2023-11-30 08:46:17,474 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:46:17" (1/1) ... [2023-11-30 08:46:17,511 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 08:46:17,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:46:17,661 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 08:46:17,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:46:17,703 INFO L206 MainTranslator]: Completed translation [2023-11-30 08:46:17,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:46:17 WrapperNode [2023-11-30 08:46:17,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 08:46:17,705 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 08:46:17,705 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 08:46:17,705 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 08:46:17,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:46:17" (1/1) ... [2023-11-30 08:46:17,719 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:46:17" (1/1) ... [2023-11-30 08:46:17,759 INFO L138 Inliner]: procedures = 25, calls = 56, calls flagged for inlining = 22, calls inlined = 30, statements flattened = 501 [2023-11-30 08:46:17,760 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 08:46:17,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 08:46:17,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 08:46:17,761 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 08:46:17,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:46:17" (1/1) ... [2023-11-30 08:46:17,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:46:17" (1/1) ... [2023-11-30 08:46:17,780 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:46:17" (1/1) ... [2023-11-30 08:46:17,780 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:46:17" (1/1) ... [2023-11-30 08:46:17,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:46:17" (1/1) ... [2023-11-30 08:46:17,826 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:46:17" (1/1) ... [2023-11-30 08:46:17,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:46:17" (1/1) ... [2023-11-30 08:46:17,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:46:17" (1/1) ... [2023-11-30 08:46:17,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 08:46:17,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 08:46:17,835 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 08:46:17,835 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 08:46:17,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:46:17" (1/1) ... [2023-11-30 08:46:17,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:46:17,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:46:17,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 08:46:17,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 08:46:17,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 08:46:17,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 08:46:17,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 08:46:17,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 08:46:17,892 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 08:46:17,892 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 08:46:17,892 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 08:46:17,892 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 08:46:17,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 08:46:17,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-30 08:46:17,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 08:46:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 08:46:17,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 08:46:17,894 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 08:46:17,996 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 08:46:17,998 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 08:46:18,566 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 08:46:18,587 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 08:46:18,587 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-30 08:46:18,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:46:18 BoogieIcfgContainer [2023-11-30 08:46:18,589 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 08:46:18,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 08:46:18,591 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 08:46:18,594 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 08:46:18,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 08:46:17" (1/3) ... [2023-11-30 08:46:18,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42bccef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:46:18, skipping insertion in model container [2023-11-30 08:46:18,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:46:17" (2/3) ... [2023-11-30 08:46:18,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42bccef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:46:18, skipping insertion in model container [2023-11-30 08:46:18,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:46:18" (3/3) ... [2023-11-30 08:46:18,596 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.c [2023-11-30 08:46:18,612 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 08:46:18,613 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2023-11-30 08:46:18,613 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 08:46:18,782 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 08:46:18,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 626 places, 680 transitions, 1374 flow [2023-11-30 08:46:19,104 INFO L124 PetriNetUnfolderBase]: 61/678 cut-off events. [2023-11-30 08:46:19,104 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 08:46:19,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 678 events. 61/678 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2418 event pairs, 0 based on Foata normal form. 0/575 useless extension candidates. Maximal degree in co-relation 491. Up to 2 conditions per place. [2023-11-30 08:46:19,127 INFO L82 GeneralOperation]: Start removeDead. Operand has 626 places, 680 transitions, 1374 flow [2023-11-30 08:46:19,150 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 604 places, 657 transitions, 1326 flow [2023-11-30 08:46:19,164 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 08:46:19,170 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46ec4959, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 08:46:19,171 INFO L363 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2023-11-30 08:46:19,182 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 08:46:19,182 INFO L124 PetriNetUnfolderBase]: 3/103 cut-off events. [2023-11-30 08:46:19,182 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 08:46:19,182 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:19,183 INFO L232 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:19,184 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:19,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:19,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1810902251, now seen corresponding path program 1 times [2023-11-30 08:46:19,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:19,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437741153] [2023-11-30 08:46:19,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:19,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:19,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:46:19,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:19,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437741153] [2023-11-30 08:46:19,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437741153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:19,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:19,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:46:19,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413053543] [2023-11-30 08:46:19,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:19,599 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:46:19,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:19,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:46:19,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:46:19,641 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 680 [2023-11-30 08:46:19,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 604 places, 657 transitions, 1326 flow. Second operand has 4 states, 4 states have (on average 621.5) internal successors, (2486), 4 states have internal predecessors, (2486), 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) [2023-11-30 08:46:19,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:19,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 680 [2023-11-30 08:46:19,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:19,939 INFO L124 PetriNetUnfolderBase]: 38/653 cut-off events. [2023-11-30 08:46:19,940 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2023-11-30 08:46:19,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 653 events. 38/653 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2313 event pairs, 0 based on Foata normal form. 29/584 useless extension candidates. Maximal degree in co-relation 474. Up to 35 conditions per place. [2023-11-30 08:46:19,959 INFO L140 encePairwiseOnDemand]: 640/680 looper letters, 39 selfloop transitions, 10 changer transitions 7/649 dead transitions. [2023-11-30 08:46:19,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 606 places, 649 transitions, 1410 flow [2023-11-30 08:46:19,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:46:19,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:46:19,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3182 transitions. [2023-11-30 08:46:19,984 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9358823529411765 [2023-11-30 08:46:19,985 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3182 transitions. [2023-11-30 08:46:19,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3182 transitions. [2023-11-30 08:46:19,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:19,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3182 transitions. [2023-11-30 08:46:20,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 636.4) internal successors, (3182), 5 states have internal predecessors, (3182), 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) [2023-11-30 08:46:20,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 680.0) internal successors, (4080), 6 states have internal predecessors, (4080), 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) [2023-11-30 08:46:20,017 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 680.0) internal successors, (4080), 6 states have internal predecessors, (4080), 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) [2023-11-30 08:46:20,022 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 2 predicate places. [2023-11-30 08:46:20,023 INFO L500 AbstractCegarLoop]: Abstraction has has 606 places, 649 transitions, 1410 flow [2023-11-30 08:46:20,025 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 621.5) internal successors, (2486), 4 states have internal predecessors, (2486), 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) [2023-11-30 08:46:20,025 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:20,025 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:20,026 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 08:46:20,026 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:20,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:20,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1309451521, now seen corresponding path program 1 times [2023-11-30 08:46:20,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:20,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021607674] [2023-11-30 08:46:20,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:20,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:20,280 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:46:20,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:20,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021607674] [2023-11-30 08:46:20,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021607674] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:46:20,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082485539] [2023-11-30 08:46:20,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:20,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:46:20,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:46:20,288 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:46:20,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-30 08:46:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:20,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 08:46:20,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:46:20,505 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:46:20,505 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:46:20,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082485539] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:20,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 08:46:20,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 08:46:20,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561109762] [2023-11-30 08:46:20,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:20,508 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:46:20,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:20,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:46:20,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:46:20,513 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 680 [2023-11-30 08:46:20,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 649 transitions, 1410 flow. Second operand has 6 states, 6 states have (on average 622.1666666666666) internal successors, (3733), 6 states have internal predecessors, (3733), 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) [2023-11-30 08:46:20,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:20,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 680 [2023-11-30 08:46:20,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:20,736 INFO L124 PetriNetUnfolderBase]: 38/651 cut-off events. [2023-11-30 08:46:20,736 INFO L125 PetriNetUnfolderBase]: For 33/36 co-relation queries the response was YES. [2023-11-30 08:46:20,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 651 events. 38/651 cut-off events. For 33/36 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2308 event pairs, 0 based on Foata normal form. 0/555 useless extension candidates. Maximal degree in co-relation 502. Up to 33 conditions per place. [2023-11-30 08:46:20,752 INFO L140 encePairwiseOnDemand]: 668/680 looper letters, 31 selfloop transitions, 16 changer transitions 7/647 dead transitions. [2023-11-30 08:46:20,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 610 places, 647 transitions, 1498 flow [2023-11-30 08:46:20,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:46:20,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:46:20,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4390 transitions. [2023-11-30 08:46:20,761 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9222689075630253 [2023-11-30 08:46:20,761 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4390 transitions. [2023-11-30 08:46:20,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4390 transitions. [2023-11-30 08:46:20,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:20,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4390 transitions. [2023-11-30 08:46:20,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 627.1428571428571) internal successors, (4390), 7 states have internal predecessors, (4390), 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) [2023-11-30 08:46:20,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:20,782 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:20,782 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 6 predicate places. [2023-11-30 08:46:20,782 INFO L500 AbstractCegarLoop]: Abstraction has has 610 places, 647 transitions, 1498 flow [2023-11-30 08:46:20,784 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 622.1666666666666) internal successors, (3733), 6 states have internal predecessors, (3733), 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) [2023-11-30 08:46:20,784 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:20,785 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:20,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-30 08:46:20,993 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:46:20,993 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:20,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:20,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1938290335, now seen corresponding path program 1 times [2023-11-30 08:46:20,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:20,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118037373] [2023-11-30 08:46:20,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:20,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:21,123 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:46:21,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:21,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118037373] [2023-11-30 08:46:21,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118037373] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:46:21,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717827864] [2023-11-30 08:46:21,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:21,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:46:21,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:46:21,126 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:46:21,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-30 08:46:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:21,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 08:46:21,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:46:21,276 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:46:21,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:46:21,328 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:46:21,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717827864] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:46:21,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:46:21,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-30 08:46:21,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778372079] [2023-11-30 08:46:21,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:46:21,331 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 08:46:21,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:21,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 08:46:21,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-30 08:46:21,340 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 680 [2023-11-30 08:46:21,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 610 places, 647 transitions, 1498 flow. Second operand has 12 states, 12 states have (on average 622.8333333333334) internal successors, (7474), 12 states have internal predecessors, (7474), 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) [2023-11-30 08:46:21,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:21,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 680 [2023-11-30 08:46:21,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:21,674 INFO L124 PetriNetUnfolderBase]: 44/715 cut-off events. [2023-11-30 08:46:21,674 INFO L125 PetriNetUnfolderBase]: For 113/118 co-relation queries the response was YES. [2023-11-30 08:46:21,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 715 events. 44/715 cut-off events. For 113/118 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2661 event pairs, 0 based on Foata normal form. 0/613 useless extension candidates. Maximal degree in co-relation 767. Up to 85 conditions per place. [2023-11-30 08:46:21,695 INFO L140 encePairwiseOnDemand]: 666/680 looper letters, 63 selfloop transitions, 36 changer transitions 7/699 dead transitions. [2023-11-30 08:46:21,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 623 places, 699 transitions, 2010 flow [2023-11-30 08:46:21,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 08:46:21,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 08:46:21,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 8786 transitions. [2023-11-30 08:46:21,713 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9228991596638656 [2023-11-30 08:46:21,713 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 8786 transitions. [2023-11-30 08:46:21,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 8786 transitions. [2023-11-30 08:46:21,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:21,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 8786 transitions. [2023-11-30 08:46:21,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 627.5714285714286) internal successors, (8786), 14 states have internal predecessors, (8786), 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) [2023-11-30 08:46:21,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 680.0) internal successors, (10200), 15 states have internal predecessors, (10200), 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) [2023-11-30 08:46:21,767 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 680.0) internal successors, (10200), 15 states have internal predecessors, (10200), 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) [2023-11-30 08:46:21,768 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 19 predicate places. [2023-11-30 08:46:21,770 INFO L500 AbstractCegarLoop]: Abstraction has has 623 places, 699 transitions, 2010 flow [2023-11-30 08:46:21,773 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 622.8333333333334) internal successors, (7474), 12 states have internal predecessors, (7474), 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) [2023-11-30 08:46:21,773 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:21,773 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1] [2023-11-30 08:46:21,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-30 08:46:21,979 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-30 08:46:21,979 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:21,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:21,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1458887285, now seen corresponding path program 2 times [2023-11-30 08:46:21,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:21,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617715104] [2023-11-30 08:46:21,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:21,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:22,236 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:46:22,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:22,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617715104] [2023-11-30 08:46:22,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617715104] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:46:22,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697975527] [2023-11-30 08:46:22,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:46:22,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:46:22,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:46:22,239 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:46:22,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-30 08:46:22,340 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:46:22,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:46:22,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 08:46:22,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:46:22,438 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-30 08:46:22,438 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:46:22,542 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-30 08:46:22,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697975527] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:46:22,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:46:22,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 17 [2023-11-30 08:46:22,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172951728] [2023-11-30 08:46:22,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:46:22,543 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-30 08:46:22,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:22,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-30 08:46:22,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-11-30 08:46:22,552 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 610 out of 680 [2023-11-30 08:46:22,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 623 places, 699 transitions, 2010 flow. Second operand has 18 states, 18 states have (on average 613.9444444444445) internal successors, (11051), 18 states have internal predecessors, (11051), 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) [2023-11-30 08:46:22,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:22,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 610 of 680 [2023-11-30 08:46:22,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:23,015 INFO L124 PetriNetUnfolderBase]: 46/721 cut-off events. [2023-11-30 08:46:23,016 INFO L125 PetriNetUnfolderBase]: For 212/219 co-relation queries the response was YES. [2023-11-30 08:46:23,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1168 conditions, 721 events. 46/721 cut-off events. For 212/219 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2658 event pairs, 0 based on Foata normal form. 0/619 useless extension candidates. Maximal degree in co-relation 904. Up to 91 conditions per place. [2023-11-30 08:46:23,032 INFO L140 encePairwiseOnDemand]: 658/680 looper letters, 61 selfloop transitions, 54 changer transitions 7/705 dead transitions. [2023-11-30 08:46:23,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 640 places, 705 transitions, 2290 flow [2023-11-30 08:46:23,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-30 08:46:23,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-30 08:46:23,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 12318 transitions. [2023-11-30 08:46:23,052 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9057352941176471 [2023-11-30 08:46:23,053 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 12318 transitions. [2023-11-30 08:46:23,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 12318 transitions. [2023-11-30 08:46:23,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:23,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 12318 transitions. [2023-11-30 08:46:23,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 615.9) internal successors, (12318), 20 states have internal predecessors, (12318), 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) [2023-11-30 08:46:23,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 680.0) internal successors, (14280), 21 states have internal predecessors, (14280), 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) [2023-11-30 08:46:23,097 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 680.0) internal successors, (14280), 21 states have internal predecessors, (14280), 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) [2023-11-30 08:46:23,098 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 36 predicate places. [2023-11-30 08:46:23,098 INFO L500 AbstractCegarLoop]: Abstraction has has 640 places, 705 transitions, 2290 flow [2023-11-30 08:46:23,100 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 613.9444444444445) internal successors, (11051), 18 states have internal predecessors, (11051), 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) [2023-11-30 08:46:23,100 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:23,100 INFO L232 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:23,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-30 08:46:23,306 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:46:23,307 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:23,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:23,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1141558026, now seen corresponding path program 1 times [2023-11-30 08:46:23,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:23,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704899646] [2023-11-30 08:46:23,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:23,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:23,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:46:23,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:23,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704899646] [2023-11-30 08:46:23,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704899646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:23,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:23,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:46:23,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952679416] [2023-11-30 08:46:23,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:23,391 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:46:23,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:23,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:46:23,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:46:23,400 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 600 out of 680 [2023-11-30 08:46:23,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 640 places, 705 transitions, 2290 flow. Second operand has 4 states, 4 states have (on average 601.5) internal successors, (2406), 4 states have internal predecessors, (2406), 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) [2023-11-30 08:46:23,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:23,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 600 of 680 [2023-11-30 08:46:23,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:23,863 INFO L124 PetriNetUnfolderBase]: 186/1926 cut-off events. [2023-11-30 08:46:23,863 INFO L125 PetriNetUnfolderBase]: For 1189/1198 co-relation queries the response was YES. [2023-11-30 08:46:23,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2954 conditions, 1926 events. 186/1926 cut-off events. For 1189/1198 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 13213 event pairs, 26 based on Foata normal form. 0/1614 useless extension candidates. Maximal degree in co-relation 2252. Up to 154 conditions per place. [2023-11-30 08:46:23,897 INFO L140 encePairwiseOnDemand]: 664/680 looper letters, 63 selfloop transitions, 10 changer transitions 7/727 dead transitions. [2023-11-30 08:46:23,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 641 places, 727 transitions, 2504 flow [2023-11-30 08:46:23,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:46:23,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:46:23,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2480 transitions. [2023-11-30 08:46:23,903 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9117647058823529 [2023-11-30 08:46:23,903 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2480 transitions. [2023-11-30 08:46:23,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2480 transitions. [2023-11-30 08:46:23,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:23,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2480 transitions. [2023-11-30 08:46:23,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 620.0) internal successors, (2480), 4 states have internal predecessors, (2480), 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) [2023-11-30 08:46:23,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 680.0) internal successors, (3400), 5 states have internal predecessors, (3400), 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) [2023-11-30 08:46:23,913 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 680.0) internal successors, (3400), 5 states have internal predecessors, (3400), 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) [2023-11-30 08:46:23,914 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 37 predicate places. [2023-11-30 08:46:23,914 INFO L500 AbstractCegarLoop]: Abstraction has has 641 places, 727 transitions, 2504 flow [2023-11-30 08:46:23,915 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 601.5) internal successors, (2406), 4 states have internal predecessors, (2406), 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) [2023-11-30 08:46:23,915 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:23,915 INFO L232 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:23,915 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 08:46:23,915 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:23,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:23,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1028562157, now seen corresponding path program 1 times [2023-11-30 08:46:23,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:23,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196623323] [2023-11-30 08:46:23,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:23,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:24,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:46:24,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:24,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196623323] [2023-11-30 08:46:24,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196623323] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:24,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:24,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:46:24,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842929131] [2023-11-30 08:46:24,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:24,005 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:46:24,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:24,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:46:24,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-30 08:46:24,008 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 680 [2023-11-30 08:46:24,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 641 places, 727 transitions, 2504 flow. Second operand has 5 states, 5 states have (on average 624.2) internal successors, (3121), 5 states have internal predecessors, (3121), 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) [2023-11-30 08:46:24,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:24,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 680 [2023-11-30 08:46:24,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:24,361 INFO L124 PetriNetUnfolderBase]: 184/1922 cut-off events. [2023-11-30 08:46:24,361 INFO L125 PetriNetUnfolderBase]: For 1707/1718 co-relation queries the response was YES. [2023-11-30 08:46:24,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3080 conditions, 1922 events. 184/1922 cut-off events. For 1707/1718 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 13047 event pairs, 26 based on Foata normal form. 0/1612 useless extension candidates. Maximal degree in co-relation 2315. Up to 152 conditions per place. [2023-11-30 08:46:24,400 INFO L140 encePairwiseOnDemand]: 666/680 looper letters, 71 selfloop transitions, 12 changer transitions 7/723 dead transitions. [2023-11-30 08:46:24,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 645 places, 723 transitions, 2632 flow [2023-11-30 08:46:24,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:46:24,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:46:24,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3142 transitions. [2023-11-30 08:46:24,407 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9241176470588235 [2023-11-30 08:46:24,407 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3142 transitions. [2023-11-30 08:46:24,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3142 transitions. [2023-11-30 08:46:24,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:24,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3142 transitions. [2023-11-30 08:46:24,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 628.4) internal successors, (3142), 5 states have internal predecessors, (3142), 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) [2023-11-30 08:46:24,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 680.0) internal successors, (4080), 6 states have internal predecessors, (4080), 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) [2023-11-30 08:46:24,421 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 680.0) internal successors, (4080), 6 states have internal predecessors, (4080), 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) [2023-11-30 08:46:24,423 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 41 predicate places. [2023-11-30 08:46:24,423 INFO L500 AbstractCegarLoop]: Abstraction has has 645 places, 723 transitions, 2632 flow [2023-11-30 08:46:24,424 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 624.2) internal successors, (3121), 5 states have internal predecessors, (3121), 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) [2023-11-30 08:46:24,424 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:24,424 INFO L232 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, 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, 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, 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, 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, 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] [2023-11-30 08:46:24,424 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 08:46:24,425 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:24,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:24,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1266696664, now seen corresponding path program 1 times [2023-11-30 08:46:24,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:24,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989126698] [2023-11-30 08:46:24,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:24,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 08:46:24,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:24,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989126698] [2023-11-30 08:46:24,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989126698] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:46:24,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702483245] [2023-11-30 08:46:24,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:24,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:46:24,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:46:24,628 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:46:24,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-30 08:46:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:24,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-30 08:46:24,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:46:24,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 08:46:24,836 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:46:24,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 08:46:24,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702483245] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:46:24,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:46:24,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-11-30 08:46:24,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063113912] [2023-11-30 08:46:24,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:46:24,902 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 08:46:24,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:24,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 08:46:24,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-11-30 08:46:24,910 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 610 out of 680 [2023-11-30 08:46:24,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 645 places, 723 transitions, 2632 flow. Second operand has 15 states, 15 states have (on average 613.8666666666667) internal successors, (9208), 15 states have internal predecessors, (9208), 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) [2023-11-30 08:46:24,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:24,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 610 of 680 [2023-11-30 08:46:24,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:25,409 INFO L124 PetriNetUnfolderBase]: 180/1914 cut-off events. [2023-11-30 08:46:25,410 INFO L125 PetriNetUnfolderBase]: For 2323/2336 co-relation queries the response was YES. [2023-11-30 08:46:25,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3200 conditions, 1914 events. 180/1914 cut-off events. For 2323/2336 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 12885 event pairs, 26 based on Foata normal form. 0/1608 useless extension candidates. Maximal degree in co-relation 2378. Up to 144 conditions per place. [2023-11-30 08:46:25,439 INFO L140 encePairwiseOnDemand]: 660/680 looper letters, 71 selfloop transitions, 34 changer transitions 7/715 dead transitions. [2023-11-30 08:46:25,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 655 places, 715 transitions, 2748 flow [2023-11-30 08:46:25,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-30 08:46:25,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-30 08:46:25,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 6782 transitions. [2023-11-30 08:46:25,451 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9066844919786097 [2023-11-30 08:46:25,451 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 6782 transitions. [2023-11-30 08:46:25,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 6782 transitions. [2023-11-30 08:46:25,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:25,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 6782 transitions. [2023-11-30 08:46:25,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 616.5454545454545) internal successors, (6782), 11 states have internal predecessors, (6782), 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) [2023-11-30 08:46:25,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 680.0) internal successors, (8160), 12 states have internal predecessors, (8160), 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) [2023-11-30 08:46:25,471 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 680.0) internal successors, (8160), 12 states have internal predecessors, (8160), 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) [2023-11-30 08:46:25,472 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 51 predicate places. [2023-11-30 08:46:25,472 INFO L500 AbstractCegarLoop]: Abstraction has has 655 places, 715 transitions, 2748 flow [2023-11-30 08:46:25,474 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 613.8666666666667) internal successors, (9208), 15 states have internal predecessors, (9208), 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) [2023-11-30 08:46:25,475 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:25,475 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:25,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-30 08:46:25,683 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:46:25,684 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:25,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:25,685 INFO L85 PathProgramCache]: Analyzing trace with hash -879149320, now seen corresponding path program 2 times [2023-11-30 08:46:25,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:25,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680925419] [2023-11-30 08:46:25,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:25,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:25,924 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-30 08:46:25,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:25,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680925419] [2023-11-30 08:46:25,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680925419] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:46:25,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554363930] [2023-11-30 08:46:25,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:46:25,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:46:25,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:46:25,928 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:46:25,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-30 08:46:26,049 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:46:26,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:46:26,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 08:46:26,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:46:26,228 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-30 08:46:26,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:46:26,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554363930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:26,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 08:46:26,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2023-11-30 08:46:26,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559805772] [2023-11-30 08:46:26,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:26,229 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:46:26,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:26,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:46:26,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-30 08:46:26,233 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 680 [2023-11-30 08:46:26,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 655 places, 715 transitions, 2748 flow. Second operand has 6 states, 6 states have (on average 598.1666666666666) internal successors, (3589), 6 states have internal predecessors, (3589), 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) [2023-11-30 08:46:26,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:26,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 680 [2023-11-30 08:46:26,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:26,770 INFO L124 PetriNetUnfolderBase]: 255/2171 cut-off events. [2023-11-30 08:46:26,770 INFO L125 PetriNetUnfolderBase]: For 2896/2911 co-relation queries the response was YES. [2023-11-30 08:46:26,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3978 conditions, 2171 events. 255/2171 cut-off events. For 2896/2911 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 15936 event pairs, 41 based on Foata normal form. 0/1824 useless extension candidates. Maximal degree in co-relation 3121. Up to 158 conditions per place. [2023-11-30 08:46:26,808 INFO L140 encePairwiseOnDemand]: 669/680 looper letters, 74 selfloop transitions, 11 changer transitions 7/728 dead transitions. [2023-11-30 08:46:26,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 660 places, 728 transitions, 3041 flow [2023-11-30 08:46:26,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:46:26,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:46:26,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4237 transitions. [2023-11-30 08:46:26,816 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.890126050420168 [2023-11-30 08:46:26,816 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4237 transitions. [2023-11-30 08:46:26,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4237 transitions. [2023-11-30 08:46:26,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:26,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4237 transitions. [2023-11-30 08:46:26,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 605.2857142857143) internal successors, (4237), 7 states have internal predecessors, (4237), 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) [2023-11-30 08:46:26,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:26,831 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:26,833 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 56 predicate places. [2023-11-30 08:46:26,834 INFO L500 AbstractCegarLoop]: Abstraction has has 660 places, 728 transitions, 3041 flow [2023-11-30 08:46:26,836 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 598.1666666666666) internal successors, (3589), 6 states have internal predecessors, (3589), 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) [2023-11-30 08:46:26,836 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:26,836 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:26,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-30 08:46:27,042 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:46:27,043 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:27,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:27,043 INFO L85 PathProgramCache]: Analyzing trace with hash -643063881, now seen corresponding path program 1 times [2023-11-30 08:46:27,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:27,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008845401] [2023-11-30 08:46:27,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:27,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:27,133 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-30 08:46:27,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:27,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008845401] [2023-11-30 08:46:27,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008845401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:27,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:27,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:46:27,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476452418] [2023-11-30 08:46:27,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:27,134 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:46:27,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:27,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:46:27,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:46:27,137 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 600 out of 680 [2023-11-30 08:46:27,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 660 places, 728 transitions, 3041 flow. Second operand has 4 states, 4 states have (on average 601.75) internal successors, (2407), 4 states have internal predecessors, (2407), 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) [2023-11-30 08:46:27,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:27,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 600 of 680 [2023-11-30 08:46:27,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:27,772 INFO L124 PetriNetUnfolderBase]: 397/2726 cut-off events. [2023-11-30 08:46:27,772 INFO L125 PetriNetUnfolderBase]: For 19143/28604 co-relation queries the response was YES. [2023-11-30 08:46:27,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6270 conditions, 2726 events. 397/2726 cut-off events. For 19143/28604 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 22486 event pairs, 67 based on Foata normal form. 0/2274 useless extension candidates. Maximal degree in co-relation 3803. Up to 312 conditions per place. [2023-11-30 08:46:27,818 INFO L140 encePairwiseOnDemand]: 664/680 looper letters, 70 selfloop transitions, 10 changer transitions 7/750 dead transitions. [2023-11-30 08:46:27,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 750 transitions, 3285 flow [2023-11-30 08:46:27,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:46:27,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:46:27,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2480 transitions. [2023-11-30 08:46:27,823 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9117647058823529 [2023-11-30 08:46:27,823 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2480 transitions. [2023-11-30 08:46:27,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2480 transitions. [2023-11-30 08:46:27,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:27,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2480 transitions. [2023-11-30 08:46:27,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 620.0) internal successors, (2480), 4 states have internal predecessors, (2480), 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) [2023-11-30 08:46:27,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 680.0) internal successors, (3400), 5 states have internal predecessors, (3400), 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) [2023-11-30 08:46:27,830 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 680.0) internal successors, (3400), 5 states have internal predecessors, (3400), 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) [2023-11-30 08:46:27,830 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 57 predicate places. [2023-11-30 08:46:27,830 INFO L500 AbstractCegarLoop]: Abstraction has has 661 places, 750 transitions, 3285 flow [2023-11-30 08:46:27,831 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 601.75) internal successors, (2407), 4 states have internal predecessors, (2407), 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) [2023-11-30 08:46:27,831 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:27,831 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:27,831 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 08:46:27,831 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:27,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:27,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1539858128, now seen corresponding path program 1 times [2023-11-30 08:46:27,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:27,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080393086] [2023-11-30 08:46:27,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:27,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:28,044 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-30 08:46:28,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:28,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080393086] [2023-11-30 08:46:28,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080393086] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:46:28,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111202263] [2023-11-30 08:46:28,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:28,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:46:28,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:46:28,047 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:46:28,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-30 08:46:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:28,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-30 08:46:28,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:46:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-30 08:46:28,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:46:28,470 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-30 08:46:28,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111202263] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:46:28,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:46:28,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2023-11-30 08:46:28,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473578409] [2023-11-30 08:46:28,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:46:28,473 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-30 08:46:28,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:28,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-30 08:46:28,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2023-11-30 08:46:28,485 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 610 out of 680 [2023-11-30 08:46:28,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 661 places, 750 transitions, 3285 flow. Second operand has 22 states, 22 states have (on average 613.9545454545455) internal successors, (13507), 22 states have internal predecessors, (13507), 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) [2023-11-30 08:46:28,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:28,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 610 of 680 [2023-11-30 08:46:28,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:29,475 INFO L124 PetriNetUnfolderBase]: 393/2718 cut-off events. [2023-11-30 08:46:29,476 INFO L125 PetriNetUnfolderBase]: For 33641/43104 co-relation queries the response was YES. [2023-11-30 08:46:29,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6510 conditions, 2718 events. 393/2718 cut-off events. For 33641/43104 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 22438 event pairs, 67 based on Foata normal form. 0/2270 useless extension candidates. Maximal degree in co-relation 3875. Up to 312 conditions per place. [2023-11-30 08:46:29,530 INFO L140 encePairwiseOnDemand]: 660/680 looper letters, 66 selfloop transitions, 38 changer transitions 7/742 dead transitions. [2023-11-30 08:46:29,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 677 places, 742 transitions, 3383 flow [2023-11-30 08:46:29,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-30 08:46:29,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-30 08:46:29,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 10470 transitions. [2023-11-30 08:46:29,550 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9057093425605537 [2023-11-30 08:46:29,550 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 10470 transitions. [2023-11-30 08:46:29,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 10470 transitions. [2023-11-30 08:46:29,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:29,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 10470 transitions. [2023-11-30 08:46:29,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 615.8823529411765) internal successors, (10470), 17 states have internal predecessors, (10470), 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) [2023-11-30 08:46:29,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 680.0) internal successors, (12240), 18 states have internal predecessors, (12240), 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) [2023-11-30 08:46:29,583 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 680.0) internal successors, (12240), 18 states have internal predecessors, (12240), 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) [2023-11-30 08:46:29,583 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 73 predicate places. [2023-11-30 08:46:29,584 INFO L500 AbstractCegarLoop]: Abstraction has has 677 places, 742 transitions, 3383 flow [2023-11-30 08:46:29,585 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 613.9545454545455) internal successors, (13507), 22 states have internal predecessors, (13507), 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) [2023-11-30 08:46:29,585 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:29,586 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:29,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-30 08:46:29,794 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:46:29,795 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:29,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:29,795 INFO L85 PathProgramCache]: Analyzing trace with hash 2098371568, now seen corresponding path program 2 times [2023-11-30 08:46:29,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:29,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960260633] [2023-11-30 08:46:29,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:29,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:29,959 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:29,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:29,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960260633] [2023-11-30 08:46:29,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960260633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:29,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:29,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:46:29,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291384463] [2023-11-30 08:46:29,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:29,961 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:46:29,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:29,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:46:29,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:46:29,964 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 680 [2023-11-30 08:46:29,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 677 places, 742 transitions, 3383 flow. Second operand has 6 states, 6 states have (on average 598.3333333333334) internal successors, (3590), 6 states have internal predecessors, (3590), 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) [2023-11-30 08:46:29,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:29,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 680 [2023-11-30 08:46:29,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:30,834 INFO L124 PetriNetUnfolderBase]: 488/3311 cut-off events. [2023-11-30 08:46:30,834 INFO L125 PetriNetUnfolderBase]: For 44903/57754 co-relation queries the response was YES. [2023-11-30 08:46:30,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8480 conditions, 3311 events. 488/3311 cut-off events. For 44903/57754 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 30184 event pairs, 84 based on Foata normal form. 4/2773 useless extension candidates. Maximal degree in co-relation 5421. Up to 402 conditions per place. [2023-11-30 08:46:30,881 INFO L140 encePairwiseOnDemand]: 669/680 looper letters, 81 selfloop transitions, 14 changer transitions 7/755 dead transitions. [2023-11-30 08:46:30,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 682 places, 755 transitions, 3732 flow [2023-11-30 08:46:30,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:46:30,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:46:30,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4237 transitions. [2023-11-30 08:46:30,890 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.890126050420168 [2023-11-30 08:46:30,891 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4237 transitions. [2023-11-30 08:46:30,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4237 transitions. [2023-11-30 08:46:30,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:30,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4237 transitions. [2023-11-30 08:46:30,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 605.2857142857143) internal successors, (4237), 7 states have internal predecessors, (4237), 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) [2023-11-30 08:46:30,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:30,908 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:30,908 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 78 predicate places. [2023-11-30 08:46:30,909 INFO L500 AbstractCegarLoop]: Abstraction has has 682 places, 755 transitions, 3732 flow [2023-11-30 08:46:30,909 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 598.3333333333334) internal successors, (3590), 6 states have internal predecessors, (3590), 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) [2023-11-30 08:46:30,909 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:30,909 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:30,910 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 08:46:30,910 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:30,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:30,910 INFO L85 PathProgramCache]: Analyzing trace with hash 210341612, now seen corresponding path program 1 times [2023-11-30 08:46:30,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:30,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943904313] [2023-11-30 08:46:30,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:30,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:31,208 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:31,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:31,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943904313] [2023-11-30 08:46:31,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943904313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:31,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:31,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:46:31,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439446519] [2023-11-30 08:46:31,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:31,210 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:46:31,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:31,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:46:31,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:46:31,213 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 680 [2023-11-30 08:46:31,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 682 places, 755 transitions, 3732 flow. Second operand has 6 states, 6 states have (on average 598.1666666666666) internal successors, (3589), 6 states have internal predecessors, (3589), 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) [2023-11-30 08:46:31,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:31,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 680 [2023-11-30 08:46:31,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:31,946 INFO L124 PetriNetUnfolderBase]: 486/3302 cut-off events. [2023-11-30 08:46:31,946 INFO L125 PetriNetUnfolderBase]: For 39199/72061 co-relation queries the response was YES. [2023-11-30 08:46:31,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9085 conditions, 3302 events. 486/3302 cut-off events. For 39199/72061 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 30171 event pairs, 82 based on Foata normal form. 31/2799 useless extension candidates. Maximal degree in co-relation 5871. Up to 401 conditions per place. [2023-11-30 08:46:31,991 INFO L140 encePairwiseOnDemand]: 670/680 looper letters, 82 selfloop transitions, 14 changer transitions 7/756 dead transitions. [2023-11-30 08:46:31,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 756 transitions, 3953 flow [2023-11-30 08:46:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:46:31,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:46:31,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4230 transitions. [2023-11-30 08:46:31,996 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8886554621848739 [2023-11-30 08:46:31,996 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4230 transitions. [2023-11-30 08:46:31,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4230 transitions. [2023-11-30 08:46:31,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:31,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4230 transitions. [2023-11-30 08:46:32,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 604.2857142857143) internal successors, (4230), 7 states have internal predecessors, (4230), 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) [2023-11-30 08:46:32,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:32,005 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:32,005 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 83 predicate places. [2023-11-30 08:46:32,005 INFO L500 AbstractCegarLoop]: Abstraction has has 687 places, 756 transitions, 3953 flow [2023-11-30 08:46:32,006 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 598.1666666666666) internal successors, (3589), 6 states have internal predecessors, (3589), 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) [2023-11-30 08:46:32,006 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:32,006 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:32,006 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 08:46:32,006 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:32,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:32,006 INFO L85 PathProgramCache]: Analyzing trace with hash -2069342854, now seen corresponding path program 1 times [2023-11-30 08:46:32,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:32,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161312545] [2023-11-30 08:46:32,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:32,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:32,104 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:32,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:32,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161312545] [2023-11-30 08:46:32,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161312545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:32,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:32,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:46:32,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57524010] [2023-11-30 08:46:32,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:32,105 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:46:32,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:32,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:46:32,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:46:32,108 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 600 out of 680 [2023-11-30 08:46:32,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 687 places, 756 transitions, 3953 flow. Second operand has 4 states, 4 states have (on average 602.5) internal successors, (2410), 4 states have internal predecessors, (2410), 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) [2023-11-30 08:46:32,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:32,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 600 of 680 [2023-11-30 08:46:32,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:32,847 INFO L124 PetriNetUnfolderBase]: 476/3292 cut-off events. [2023-11-30 08:46:32,848 INFO L125 PetriNetUnfolderBase]: For 49819/116584 co-relation queries the response was YES. [2023-11-30 08:46:32,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9598 conditions, 3292 events. 476/3292 cut-off events. For 49819/116584 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 30134 event pairs, 74 based on Foata normal form. 60/2828 useless extension candidates. Maximal degree in co-relation 6236. Up to 401 conditions per place. [2023-11-30 08:46:32,921 INFO L140 encePairwiseOnDemand]: 670/680 looper letters, 86 selfloop transitions, 9 changer transitions 7/761 dead transitions. [2023-11-30 08:46:32,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 690 places, 761 transitions, 4332 flow [2023-11-30 08:46:32,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:46:32,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:46:32,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2472 transitions. [2023-11-30 08:46:32,924 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9088235294117647 [2023-11-30 08:46:32,925 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2472 transitions. [2023-11-30 08:46:32,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2472 transitions. [2023-11-30 08:46:32,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:32,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2472 transitions. [2023-11-30 08:46:32,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 618.0) internal successors, (2472), 4 states have internal predecessors, (2472), 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) [2023-11-30 08:46:32,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 680.0) internal successors, (3400), 5 states have internal predecessors, (3400), 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) [2023-11-30 08:46:32,931 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 680.0) internal successors, (3400), 5 states have internal predecessors, (3400), 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) [2023-11-30 08:46:32,931 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 86 predicate places. [2023-11-30 08:46:32,931 INFO L500 AbstractCegarLoop]: Abstraction has has 690 places, 761 transitions, 4332 flow [2023-11-30 08:46:32,932 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 602.5) internal successors, (2410), 4 states have internal predecessors, (2410), 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) [2023-11-30 08:46:32,932 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:32,932 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:32,932 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 08:46:32,933 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:32,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:32,933 INFO L85 PathProgramCache]: Analyzing trace with hash -378517071, now seen corresponding path program 1 times [2023-11-30 08:46:32,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:32,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673226892] [2023-11-30 08:46:32,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:32,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:33,158 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:33,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:33,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673226892] [2023-11-30 08:46:33,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673226892] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:33,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:33,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:46:33,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776894217] [2023-11-30 08:46:33,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:33,160 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:46:33,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:33,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:46:33,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:46:33,163 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 680 [2023-11-30 08:46:33,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 690 places, 761 transitions, 4332 flow. Second operand has 6 states, 6 states have (on average 598.1666666666666) internal successors, (3589), 6 states have internal predecessors, (3589), 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) [2023-11-30 08:46:33,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:33,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 680 [2023-11-30 08:46:33,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:33,883 INFO L124 PetriNetUnfolderBase]: 448/3100 cut-off events. [2023-11-30 08:46:33,883 INFO L125 PetriNetUnfolderBase]: For 18487/19401 co-relation queries the response was YES. [2023-11-30 08:46:33,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9401 conditions, 3100 events. 448/3100 cut-off events. For 18487/19401 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 28464 event pairs, 93 based on Foata normal form. 50/2694 useless extension candidates. Maximal degree in co-relation 7036. Up to 378 conditions per place. [2023-11-30 08:46:33,935 INFO L140 encePairwiseOnDemand]: 670/680 looper letters, 96 selfloop transitions, 11 changer transitions 7/771 dead transitions. [2023-11-30 08:46:33,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 695 places, 771 transitions, 4672 flow [2023-11-30 08:46:33,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:46:33,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:46:33,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4235 transitions. [2023-11-30 08:46:33,941 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8897058823529411 [2023-11-30 08:46:33,941 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4235 transitions. [2023-11-30 08:46:33,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4235 transitions. [2023-11-30 08:46:33,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:33,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4235 transitions. [2023-11-30 08:46:33,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 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) [2023-11-30 08:46:33,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:33,951 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:33,952 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 91 predicate places. [2023-11-30 08:46:33,952 INFO L500 AbstractCegarLoop]: Abstraction has has 695 places, 771 transitions, 4672 flow [2023-11-30 08:46:33,952 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 598.1666666666666) internal successors, (3589), 6 states have internal predecessors, (3589), 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) [2023-11-30 08:46:33,952 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:33,953 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:33,953 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 08:46:33,953 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:33,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:33,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1478460519, now seen corresponding path program 1 times [2023-11-30 08:46:33,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:33,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598605717] [2023-11-30 08:46:33,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:33,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:34,140 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:34,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:34,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598605717] [2023-11-30 08:46:34,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598605717] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:34,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:34,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:46:34,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707847586] [2023-11-30 08:46:34,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:34,142 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:46:34,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:34,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:46:34,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:46:34,144 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 600 out of 680 [2023-11-30 08:46:34,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 695 places, 771 transitions, 4672 flow. Second operand has 4 states, 4 states have (on average 602.75) internal successors, (2411), 4 states have internal predecessors, (2411), 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) [2023-11-30 08:46:34,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:34,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 600 of 680 [2023-11-30 08:46:34,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:34,862 INFO L124 PetriNetUnfolderBase]: 462/3103 cut-off events. [2023-11-30 08:46:34,862 INFO L125 PetriNetUnfolderBase]: For 19445/19737 co-relation queries the response was YES. [2023-11-30 08:46:34,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10241 conditions, 3103 events. 462/3103 cut-off events. For 19445/19737 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 28321 event pairs, 92 based on Foata normal form. 11/2658 useless extension candidates. Maximal degree in co-relation 7800. Up to 377 conditions per place. [2023-11-30 08:46:34,917 INFO L140 encePairwiseOnDemand]: 670/680 looper letters, 97 selfloop transitions, 10 changer transitions 7/779 dead transitions. [2023-11-30 08:46:34,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 695 places, 779 transitions, 5095 flow [2023-11-30 08:46:34,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:46:34,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:46:34,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2465 transitions. [2023-11-30 08:46:34,921 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.90625 [2023-11-30 08:46:34,921 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2465 transitions. [2023-11-30 08:46:34,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2465 transitions. [2023-11-30 08:46:34,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:34,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2465 transitions. [2023-11-30 08:46:34,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 616.25) internal successors, (2465), 4 states have internal predecessors, (2465), 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) [2023-11-30 08:46:34,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 680.0) internal successors, (3400), 5 states have internal predecessors, (3400), 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) [2023-11-30 08:46:34,926 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 680.0) internal successors, (3400), 5 states have internal predecessors, (3400), 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) [2023-11-30 08:46:34,926 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 91 predicate places. [2023-11-30 08:46:34,927 INFO L500 AbstractCegarLoop]: Abstraction has has 695 places, 779 transitions, 5095 flow [2023-11-30 08:46:34,927 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 602.75) internal successors, (2411), 4 states have internal predecessors, (2411), 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) [2023-11-30 08:46:34,927 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:34,927 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:34,927 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-30 08:46:34,927 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:34,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:34,928 INFO L85 PathProgramCache]: Analyzing trace with hash 430339780, now seen corresponding path program 1 times [2023-11-30 08:46:34,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:34,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658875374] [2023-11-30 08:46:34,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:34,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:35,145 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:35,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:35,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658875374] [2023-11-30 08:46:35,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658875374] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:35,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:35,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:46:35,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343695659] [2023-11-30 08:46:35,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:35,146 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:46:35,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:35,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:46:35,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:46:35,150 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 680 [2023-11-30 08:46:35,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 695 places, 779 transitions, 5095 flow. Second operand has 6 states, 6 states have (on average 598.3333333333334) internal successors, (3590), 6 states have internal predecessors, (3590), 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) [2023-11-30 08:46:35,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:35,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 680 [2023-11-30 08:46:35,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:35,858 INFO L124 PetriNetUnfolderBase]: 460/3093 cut-off events. [2023-11-30 08:46:35,858 INFO L125 PetriNetUnfolderBase]: For 21314/21628 co-relation queries the response was YES. [2023-11-30 08:46:35,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10947 conditions, 3093 events. 460/3093 cut-off events. For 21314/21628 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 28296 event pairs, 90 based on Foata normal form. 0/2645 useless extension candidates. Maximal degree in co-relation 8381. Up to 405 conditions per place. [2023-11-30 08:46:35,912 INFO L140 encePairwiseOnDemand]: 670/680 looper letters, 102 selfloop transitions, 14 changer transitions 7/780 dead transitions. [2023-11-30 08:46:35,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 700 places, 780 transitions, 5368 flow [2023-11-30 08:46:35,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:46:35,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:46:35,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4230 transitions. [2023-11-30 08:46:35,916 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8886554621848739 [2023-11-30 08:46:35,916 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4230 transitions. [2023-11-30 08:46:35,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4230 transitions. [2023-11-30 08:46:35,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:35,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4230 transitions. [2023-11-30 08:46:35,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 604.2857142857143) internal successors, (4230), 7 states have internal predecessors, (4230), 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) [2023-11-30 08:46:35,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:35,925 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:35,925 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 96 predicate places. [2023-11-30 08:46:35,925 INFO L500 AbstractCegarLoop]: Abstraction has has 700 places, 780 transitions, 5368 flow [2023-11-30 08:46:35,926 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 598.3333333333334) internal successors, (3590), 6 states have internal predecessors, (3590), 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) [2023-11-30 08:46:35,926 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:35,926 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:35,926 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-30 08:46:35,926 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:35,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:35,927 INFO L85 PathProgramCache]: Analyzing trace with hash 455633298, now seen corresponding path program 1 times [2023-11-30 08:46:35,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:35,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174122464] [2023-11-30 08:46:35,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:35,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:36,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:36,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174122464] [2023-11-30 08:46:36,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174122464] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:36,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:36,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:46:36,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96113013] [2023-11-30 08:46:36,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:36,092 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:46:36,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:36,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:46:36,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:46:36,095 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 600 out of 680 [2023-11-30 08:46:36,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 700 places, 780 transitions, 5368 flow. Second operand has 4 states, 4 states have (on average 602.75) internal successors, (2411), 4 states have internal predecessors, (2411), 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) [2023-11-30 08:46:36,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:36,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 600 of 680 [2023-11-30 08:46:36,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:36,839 INFO L124 PetriNetUnfolderBase]: 447/3080 cut-off events. [2023-11-30 08:46:36,840 INFO L125 PetriNetUnfolderBase]: For 23137/23453 co-relation queries the response was YES. [2023-11-30 08:46:36,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11507 conditions, 3080 events. 447/3080 cut-off events. For 23137/23453 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 28280 event pairs, 82 based on Foata normal form. 0/2645 useless extension candidates. Maximal degree in co-relation 8804. Up to 405 conditions per place. [2023-11-30 08:46:36,904 INFO L140 encePairwiseOnDemand]: 670/680 looper letters, 103 selfloop transitions, 9 changer transitions 7/785 dead transitions. [2023-11-30 08:46:36,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 703 places, 785 transitions, 5837 flow [2023-11-30 08:46:36,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:46:36,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:46:36,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2472 transitions. [2023-11-30 08:46:36,907 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9088235294117647 [2023-11-30 08:46:36,907 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2472 transitions. [2023-11-30 08:46:36,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2472 transitions. [2023-11-30 08:46:36,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:36,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2472 transitions. [2023-11-30 08:46:36,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 618.0) internal successors, (2472), 4 states have internal predecessors, (2472), 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) [2023-11-30 08:46:36,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 680.0) internal successors, (3400), 5 states have internal predecessors, (3400), 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) [2023-11-30 08:46:36,913 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 680.0) internal successors, (3400), 5 states have internal predecessors, (3400), 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) [2023-11-30 08:46:36,913 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 99 predicate places. [2023-11-30 08:46:36,913 INFO L500 AbstractCegarLoop]: Abstraction has has 703 places, 785 transitions, 5837 flow [2023-11-30 08:46:36,914 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 602.75) internal successors, (2411), 4 states have internal predecessors, (2411), 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) [2023-11-30 08:46:36,914 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:36,914 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:36,914 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-30 08:46:36,914 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:36,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:36,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1937045096, now seen corresponding path program 1 times [2023-11-30 08:46:36,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:36,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945037097] [2023-11-30 08:46:36,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:36,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:37,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:37,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945037097] [2023-11-30 08:46:37,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945037097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:37,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:37,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:46:37,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606526697] [2023-11-30 08:46:37,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:37,155 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:46:37,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:37,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:46:37,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:46:37,159 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 680 [2023-11-30 08:46:37,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 703 places, 785 transitions, 5837 flow. Second operand has 8 states, 8 states have (on average 588.125) internal successors, (4705), 8 states have internal predecessors, (4705), 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) [2023-11-30 08:46:37,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:37,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 680 [2023-11-30 08:46:37,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:37,918 INFO L124 PetriNetUnfolderBase]: 455/3000 cut-off events. [2023-11-30 08:46:37,918 INFO L125 PetriNetUnfolderBase]: For 25846/26377 co-relation queries the response was YES. [2023-11-30 08:46:37,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11993 conditions, 3000 events. 455/3000 cut-off events. For 25846/26377 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 27337 event pairs, 75 based on Foata normal form. 0/2590 useless extension candidates. Maximal degree in co-relation 9208. Up to 402 conditions per place. [2023-11-30 08:46:37,969 INFO L140 encePairwiseOnDemand]: 664/680 looper letters, 121 selfloop transitions, 25 changer transitions 7/796 dead transitions. [2023-11-30 08:46:37,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 712 places, 796 transitions, 6436 flow [2023-11-30 08:46:37,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:46:37,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:46:37,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 5938 transitions. [2023-11-30 08:46:37,973 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8732352941176471 [2023-11-30 08:46:37,973 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 5938 transitions. [2023-11-30 08:46:37,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 5938 transitions. [2023-11-30 08:46:37,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:37,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 5938 transitions. [2023-11-30 08:46:37,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 593.8) internal successors, (5938), 10 states have internal predecessors, (5938), 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) [2023-11-30 08:46:37,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:46:37,986 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:46:37,986 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 108 predicate places. [2023-11-30 08:46:37,986 INFO L500 AbstractCegarLoop]: Abstraction has has 712 places, 796 transitions, 6436 flow [2023-11-30 08:46:37,987 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 588.125) internal successors, (4705), 8 states have internal predecessors, (4705), 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) [2023-11-30 08:46:37,987 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:37,987 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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] [2023-11-30 08:46:37,987 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-30 08:46:37,987 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:37,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:37,988 INFO L85 PathProgramCache]: Analyzing trace with hash 586332553, now seen corresponding path program 1 times [2023-11-30 08:46:37,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:37,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971271410] [2023-11-30 08:46:37,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:37,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:38,128 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:38,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:38,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971271410] [2023-11-30 08:46:38,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971271410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:38,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:38,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:46:38,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835446787] [2023-11-30 08:46:38,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:38,130 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:46:38,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:38,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:46:38,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:46:38,133 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 680 [2023-11-30 08:46:38,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 712 places, 796 transitions, 6436 flow. Second operand has 6 states, 6 states have (on average 598.3333333333334) internal successors, (3590), 6 states have internal predecessors, (3590), 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) [2023-11-30 08:46:38,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:38,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 680 [2023-11-30 08:46:38,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:38,937 INFO L124 PetriNetUnfolderBase]: 530/3327 cut-off events. [2023-11-30 08:46:38,937 INFO L125 PetriNetUnfolderBase]: For 30057/30171 co-relation queries the response was YES. [2023-11-30 08:46:38,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14012 conditions, 3327 events. 530/3327 cut-off events. For 30057/30171 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 31417 event pairs, 96 based on Foata normal form. 0/2870 useless extension candidates. Maximal degree in co-relation 10970. Up to 433 conditions per place. [2023-11-30 08:46:38,995 INFO L140 encePairwiseOnDemand]: 670/680 looper letters, 126 selfloop transitions, 14 changer transitions 7/806 dead transitions. [2023-11-30 08:46:38,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 717 places, 806 transitions, 6880 flow [2023-11-30 08:46:38,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:46:38,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:46:38,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4235 transitions. [2023-11-30 08:46:38,999 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8897058823529411 [2023-11-30 08:46:39,000 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4235 transitions. [2023-11-30 08:46:39,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4235 transitions. [2023-11-30 08:46:39,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:39,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4235 transitions. [2023-11-30 08:46:39,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 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) [2023-11-30 08:46:39,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:39,008 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:39,008 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 113 predicate places. [2023-11-30 08:46:39,008 INFO L500 AbstractCegarLoop]: Abstraction has has 717 places, 806 transitions, 6880 flow [2023-11-30 08:46:39,009 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 598.3333333333334) internal successors, (3590), 6 states have internal predecessors, (3590), 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) [2023-11-30 08:46:39,009 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:39,009 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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] [2023-11-30 08:46:39,009 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-30 08:46:39,009 INFO L425 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:39,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:39,010 INFO L85 PathProgramCache]: Analyzing trace with hash -81142367, now seen corresponding path program 1 times [2023-11-30 08:46:39,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:39,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191031119] [2023-11-30 08:46:39,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:39,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:39,202 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:39,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:39,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191031119] [2023-11-30 08:46:39,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191031119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:39,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:39,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:46:39,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093149120] [2023-11-30 08:46:39,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:39,203 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:46:39,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:39,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:46:39,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:46:39,207 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 680 [2023-11-30 08:46:39,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 717 places, 806 transitions, 6880 flow. Second operand has 8 states, 8 states have (on average 588.25) internal successors, (4706), 8 states have internal predecessors, (4706), 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) [2023-11-30 08:46:39,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:39,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 680 [2023-11-30 08:46:39,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:40,072 INFO L124 PetriNetUnfolderBase]: 544/3327 cut-off events. [2023-11-30 08:46:40,072 INFO L125 PetriNetUnfolderBase]: For 33137/33263 co-relation queries the response was YES. [2023-11-30 08:46:40,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14853 conditions, 3327 events. 544/3327 cut-off events. For 33137/33263 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 31401 event pairs, 96 based on Foata normal form. 0/2884 useless extension candidates. Maximal degree in co-relation 11725. Up to 431 conditions per place. [2023-11-30 08:46:40,144 INFO L140 encePairwiseOnDemand]: 663/680 looper letters, 143 selfloop transitions, 29 changer transitions 7/827 dead transitions. [2023-11-30 08:46:40,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 726 places, 827 transitions, 7893 flow [2023-11-30 08:46:40,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:46:40,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:46:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 5937 transitions. [2023-11-30 08:46:40,150 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8730882352941176 [2023-11-30 08:46:40,150 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 5937 transitions. [2023-11-30 08:46:40,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 5937 transitions. [2023-11-30 08:46:40,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:40,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 5937 transitions. [2023-11-30 08:46:40,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 593.7) internal successors, (5937), 10 states have internal predecessors, (5937), 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) [2023-11-30 08:46:40,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:46:40,163 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:46:40,163 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 122 predicate places. [2023-11-30 08:46:40,164 INFO L500 AbstractCegarLoop]: Abstraction has has 726 places, 827 transitions, 7893 flow [2023-11-30 08:46:40,164 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 588.25) internal successors, (4706), 8 states have internal predecessors, (4706), 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) [2023-11-30 08:46:40,164 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:40,164 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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] [2023-11-30 08:46:40,165 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-30 08:46:40,165 INFO L425 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:40,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:40,165 INFO L85 PathProgramCache]: Analyzing trace with hash 986020927, now seen corresponding path program 1 times [2023-11-30 08:46:40,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:40,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490012608] [2023-11-30 08:46:40,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:40,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:40,310 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:40,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:40,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490012608] [2023-11-30 08:46:40,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490012608] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:40,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:40,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:46:40,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700226697] [2023-11-30 08:46:40,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:40,311 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:46:40,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:40,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:46:40,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-30 08:46:40,314 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 680 [2023-11-30 08:46:40,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 726 places, 827 transitions, 7893 flow. Second operand has 5 states, 5 states have (on average 595.0) internal successors, (2975), 5 states have internal predecessors, (2975), 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) [2023-11-30 08:46:40,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:40,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 680 [2023-11-30 08:46:40,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:41,154 INFO L124 PetriNetUnfolderBase]: 550/3294 cut-off events. [2023-11-30 08:46:41,154 INFO L125 PetriNetUnfolderBase]: For 38864/38992 co-relation queries the response was YES. [2023-11-30 08:46:41,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15695 conditions, 3294 events. 550/3294 cut-off events. For 38864/38992 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 31054 event pairs, 93 based on Foata normal form. 0/2864 useless extension candidates. Maximal degree in co-relation 12103. Up to 463 conditions per place. [2023-11-30 08:46:41,231 INFO L140 encePairwiseOnDemand]: 664/680 looper letters, 140 selfloop transitions, 16 changer transitions 7/835 dead transitions. [2023-11-30 08:46:41,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 728 places, 835 transitions, 8298 flow [2023-11-30 08:46:41,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:46:41,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:46:41,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3639 transitions. [2023-11-30 08:46:41,235 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8919117647058824 [2023-11-30 08:46:41,235 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3639 transitions. [2023-11-30 08:46:41,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3639 transitions. [2023-11-30 08:46:41,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:41,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3639 transitions. [2023-11-30 08:46:41,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 606.5) internal successors, (3639), 6 states have internal predecessors, (3639), 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) [2023-11-30 08:46:41,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 680.0) internal successors, (4760), 7 states have internal predecessors, (4760), 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) [2023-11-30 08:46:41,241 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 680.0) internal successors, (4760), 7 states have internal predecessors, (4760), 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) [2023-11-30 08:46:41,242 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 124 predicate places. [2023-11-30 08:46:41,242 INFO L500 AbstractCegarLoop]: Abstraction has has 728 places, 835 transitions, 8298 flow [2023-11-30 08:46:41,242 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 595.0) internal successors, (2975), 5 states have internal predecessors, (2975), 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) [2023-11-30 08:46:41,242 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:41,242 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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] [2023-11-30 08:46:41,242 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-30 08:46:41,243 INFO L425 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:41,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:41,243 INFO L85 PathProgramCache]: Analyzing trace with hash -378110059, now seen corresponding path program 1 times [2023-11-30 08:46:41,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:41,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120052478] [2023-11-30 08:46:41,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:41,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:41,410 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:41,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:41,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120052478] [2023-11-30 08:46:41,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120052478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:41,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:41,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:46:41,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558233392] [2023-11-30 08:46:41,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:41,411 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:46:41,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:41,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:46:41,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:46:41,414 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 544 out of 680 [2023-11-30 08:46:41,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 728 places, 835 transitions, 8298 flow. Second operand has 6 states, 6 states have (on average 549.0) internal successors, (3294), 6 states have internal predecessors, (3294), 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) [2023-11-30 08:46:41,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:41,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 544 of 680 [2023-11-30 08:46:41,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:42,459 INFO L124 PetriNetUnfolderBase]: 705/3203 cut-off events. [2023-11-30 08:46:42,459 INFO L125 PetriNetUnfolderBase]: For 499836/516315 co-relation queries the response was YES. [2023-11-30 08:46:42,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20298 conditions, 3203 events. 705/3203 cut-off events. For 499836/516315 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 29422 event pairs, 115 based on Foata normal form. 86/2854 useless extension candidates. Maximal degree in co-relation 14394. Up to 718 conditions per place. [2023-11-30 08:46:42,526 INFO L140 encePairwiseOnDemand]: 658/680 looper letters, 206 selfloop transitions, 26 changer transitions 7/873 dead transitions. [2023-11-30 08:46:42,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 733 places, 873 transitions, 9446 flow [2023-11-30 08:46:42,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:46:42,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:46:42,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3951 transitions. [2023-11-30 08:46:42,529 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8300420168067227 [2023-11-30 08:46:42,529 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3951 transitions. [2023-11-30 08:46:42,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3951 transitions. [2023-11-30 08:46:42,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:42,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3951 transitions. [2023-11-30 08:46:42,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 564.4285714285714) internal successors, (3951), 7 states have internal predecessors, (3951), 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) [2023-11-30 08:46:42,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:42,536 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:42,536 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 129 predicate places. [2023-11-30 08:46:42,537 INFO L500 AbstractCegarLoop]: Abstraction has has 733 places, 873 transitions, 9446 flow [2023-11-30 08:46:42,537 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 549.0) internal successors, (3294), 6 states have internal predecessors, (3294), 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) [2023-11-30 08:46:42,537 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:42,537 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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] [2023-11-30 08:46:42,537 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-30 08:46:42,538 INFO L425 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:42,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:42,538 INFO L85 PathProgramCache]: Analyzing trace with hash -771558937, now seen corresponding path program 1 times [2023-11-30 08:46:42,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:42,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482597501] [2023-11-30 08:46:42,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:42,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:42,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:42,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482597501] [2023-11-30 08:46:42,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482597501] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:42,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:42,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:46:42,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658521487] [2023-11-30 08:46:42,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:42,687 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:46:42,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:42,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:46:42,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:46:42,690 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 680 [2023-11-30 08:46:42,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 733 places, 873 transitions, 9446 flow. Second operand has 6 states, 6 states have (on average 598.1666666666666) internal successors, (3589), 6 states have internal predecessors, (3589), 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) [2023-11-30 08:46:42,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:42,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 680 [2023-11-30 08:46:42,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:43,816 INFO L124 PetriNetUnfolderBase]: 702/3191 cut-off events. [2023-11-30 08:46:43,817 INFO L125 PetriNetUnfolderBase]: For 506269/522484 co-relation queries the response was YES. [2023-11-30 08:46:43,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21084 conditions, 3191 events. 702/3191 cut-off events. For 506269/522484 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 29216 event pairs, 114 based on Foata normal form. 0/2761 useless extension candidates. Maximal degree in co-relation 14992. Up to 712 conditions per place. [2023-11-30 08:46:43,881 INFO L140 encePairwiseOnDemand]: 672/680 looper letters, 143 selfloop transitions, 12 changer transitions 7/872 dead transitions. [2023-11-30 08:46:43,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 737 places, 872 transitions, 9738 flow [2023-11-30 08:46:43,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:46:43,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:46:43,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3627 transitions. [2023-11-30 08:46:43,886 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8889705882352941 [2023-11-30 08:46:43,886 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3627 transitions. [2023-11-30 08:46:43,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3627 transitions. [2023-11-30 08:46:43,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:43,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3627 transitions. [2023-11-30 08:46:43,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 604.5) internal successors, (3627), 6 states have internal predecessors, (3627), 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) [2023-11-30 08:46:43,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 680.0) internal successors, (4760), 7 states have internal predecessors, (4760), 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) [2023-11-30 08:46:43,894 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 680.0) internal successors, (4760), 7 states have internal predecessors, (4760), 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) [2023-11-30 08:46:43,894 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 133 predicate places. [2023-11-30 08:46:43,894 INFO L500 AbstractCegarLoop]: Abstraction has has 737 places, 872 transitions, 9738 flow [2023-11-30 08:46:43,895 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 598.1666666666666) internal successors, (3589), 6 states have internal predecessors, (3589), 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) [2023-11-30 08:46:43,895 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:43,895 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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] [2023-11-30 08:46:43,895 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-30 08:46:43,895 INFO L425 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:43,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:43,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1038856776, now seen corresponding path program 1 times [2023-11-30 08:46:43,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:43,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099571363] [2023-11-30 08:46:43,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:43,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:43,957 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:43,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:43,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099571363] [2023-11-30 08:46:43,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099571363] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:43,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:43,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:46:43,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276163980] [2023-11-30 08:46:43,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:43,958 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 08:46:43,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:43,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 08:46:43,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 08:46:43,960 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 641 out of 680 [2023-11-30 08:46:43,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 737 places, 872 transitions, 9738 flow. Second operand has 3 states, 3 states have (on average 642.3333333333334) internal successors, (1927), 3 states have internal predecessors, (1927), 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) [2023-11-30 08:46:43,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:43,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 641 of 680 [2023-11-30 08:46:43,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:44,847 INFO L124 PetriNetUnfolderBase]: 709/3208 cut-off events. [2023-11-30 08:46:44,848 INFO L125 PetriNetUnfolderBase]: For 629711/653376 co-relation queries the response was YES. [2023-11-30 08:46:44,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21663 conditions, 3208 events. 709/3208 cut-off events. For 629711/653376 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 29521 event pairs, 118 based on Foata normal form. 50/2828 useless extension candidates. Maximal degree in co-relation 15384. Up to 719 conditions per place. [2023-11-30 08:46:44,933 INFO L140 encePairwiseOnDemand]: 676/680 looper letters, 88 selfloop transitions, 3 changer transitions 7/875 dead transitions. [2023-11-30 08:46:44,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 739 places, 875 transitions, 9977 flow [2023-11-30 08:46:44,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 08:46:44,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 08:46:44,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1938 transitions. [2023-11-30 08:46:44,935 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.95 [2023-11-30 08:46:44,935 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1938 transitions. [2023-11-30 08:46:44,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1938 transitions. [2023-11-30 08:46:44,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:44,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1938 transitions. [2023-11-30 08:46:44,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 646.0) internal successors, (1938), 3 states have internal predecessors, (1938), 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) [2023-11-30 08:46:44,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 680.0) internal successors, (2720), 4 states have internal predecessors, (2720), 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) [2023-11-30 08:46:44,938 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 680.0) internal successors, (2720), 4 states have internal predecessors, (2720), 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) [2023-11-30 08:46:44,938 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 135 predicate places. [2023-11-30 08:46:44,938 INFO L500 AbstractCegarLoop]: Abstraction has has 739 places, 875 transitions, 9977 flow [2023-11-30 08:46:44,939 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 642.3333333333334) internal successors, (1927), 3 states have internal predecessors, (1927), 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) [2023-11-30 08:46:44,939 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:44,939 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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] [2023-11-30 08:46:44,939 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-30 08:46:44,939 INFO L425 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:44,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:44,940 INFO L85 PathProgramCache]: Analyzing trace with hash -787031486, now seen corresponding path program 1 times [2023-11-30 08:46:44,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:44,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496521194] [2023-11-30 08:46:44,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:44,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:45,218 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:45,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:45,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496521194] [2023-11-30 08:46:45,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496521194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:45,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:45,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:46:45,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520211861] [2023-11-30 08:46:45,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:45,219 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:46:45,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:45,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:46:45,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:46:45,222 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 544 out of 680 [2023-11-30 08:46:45,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 739 places, 875 transitions, 9977 flow. Second operand has 6 states, 6 states have (on average 549.1666666666666) internal successors, (3295), 6 states have internal predecessors, (3295), 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) [2023-11-30 08:46:45,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:45,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 544 of 680 [2023-11-30 08:46:45,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:46,279 INFO L124 PetriNetUnfolderBase]: 703/3188 cut-off events. [2023-11-30 08:46:46,279 INFO L125 PetriNetUnfolderBase]: For 675535/761687 co-relation queries the response was YES. [2023-11-30 08:46:46,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22694 conditions, 3188 events. 703/3188 cut-off events. For 675535/761687 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 29339 event pairs, 119 based on Foata normal form. 86/2856 useless extension candidates. Maximal degree in co-relation 16232. Up to 873 conditions per place. [2023-11-30 08:46:46,369 INFO L140 encePairwiseOnDemand]: 657/680 looper letters, 223 selfloop transitions, 31 changer transitions 7/897 dead transitions. [2023-11-30 08:46:46,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 744 places, 897 transitions, 11127 flow [2023-11-30 08:46:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:46:46,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:46:46,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3934 transitions. [2023-11-30 08:46:46,371 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8264705882352941 [2023-11-30 08:46:46,371 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3934 transitions. [2023-11-30 08:46:46,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3934 transitions. [2023-11-30 08:46:46,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:46,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3934 transitions. [2023-11-30 08:46:46,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 562.0) internal successors, (3934), 7 states have internal predecessors, (3934), 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) [2023-11-30 08:46:46,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:46,377 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:46,378 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 140 predicate places. [2023-11-30 08:46:46,378 INFO L500 AbstractCegarLoop]: Abstraction has has 744 places, 897 transitions, 11127 flow [2023-11-30 08:46:46,378 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 549.1666666666666) internal successors, (3295), 6 states have internal predecessors, (3295), 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) [2023-11-30 08:46:46,378 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:46,378 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1] [2023-11-30 08:46:46,379 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-30 08:46:46,379 INFO L425 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:46,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:46,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1908051534, now seen corresponding path program 1 times [2023-11-30 08:46:46,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:46,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325643203] [2023-11-30 08:46:46,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:46,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:46,456 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:46,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:46,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325643203] [2023-11-30 08:46:46,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325643203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:46,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:46,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 08:46:46,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180502582] [2023-11-30 08:46:46,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:46,458 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 08:46:46,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:46,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 08:46:46,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 08:46:46,460 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 623 out of 680 [2023-11-30 08:46:46,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 744 places, 897 transitions, 11127 flow. Second operand has 3 states, 3 states have (on average 626.0) internal successors, (1878), 3 states have internal predecessors, (1878), 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) [2023-11-30 08:46:46,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:46,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 623 of 680 [2023-11-30 08:46:46,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:48,057 INFO L124 PetriNetUnfolderBase]: 1145/4907 cut-off events. [2023-11-30 08:46:48,057 INFO L125 PetriNetUnfolderBase]: For 1001750/1120251 co-relation queries the response was YES. [2023-11-30 08:46:48,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36987 conditions, 4907 events. 1145/4907 cut-off events. For 1001750/1120251 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 47837 event pairs, 188 based on Foata normal form. 18/4214 useless extension candidates. Maximal degree in co-relation 25908. Up to 1353 conditions per place. [2023-11-30 08:46:48,205 INFO L140 encePairwiseOnDemand]: 672/680 looper letters, 190 selfloop transitions, 4 changer transitions 8/973 dead transitions. [2023-11-30 08:46:48,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 746 places, 973 transitions, 14753 flow [2023-11-30 08:46:48,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 08:46:48,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 08:46:48,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1923 transitions. [2023-11-30 08:46:48,206 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9426470588235294 [2023-11-30 08:46:48,206 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1923 transitions. [2023-11-30 08:46:48,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1923 transitions. [2023-11-30 08:46:48,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:48,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1923 transitions. [2023-11-30 08:46:48,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 641.0) internal successors, (1923), 3 states have internal predecessors, (1923), 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) [2023-11-30 08:46:48,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 680.0) internal successors, (2720), 4 states have internal predecessors, (2720), 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) [2023-11-30 08:46:48,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 680.0) internal successors, (2720), 4 states have internal predecessors, (2720), 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) [2023-11-30 08:46:48,210 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 142 predicate places. [2023-11-30 08:46:48,210 INFO L500 AbstractCegarLoop]: Abstraction has has 746 places, 973 transitions, 14753 flow [2023-11-30 08:46:48,211 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 626.0) internal successors, (1878), 3 states have internal predecessors, (1878), 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) [2023-11-30 08:46:48,211 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:48,211 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1] [2023-11-30 08:46:48,211 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-30 08:46:48,211 INFO L425 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:48,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:48,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1017286016, now seen corresponding path program 1 times [2023-11-30 08:46:48,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:48,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738013625] [2023-11-30 08:46:48,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:48,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:48,610 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:48,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:48,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738013625] [2023-11-30 08:46:48,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738013625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:48,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:48,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:46:48,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147300817] [2023-11-30 08:46:48,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:48,611 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:46:48,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:48,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:46:48,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:46:48,615 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 680 [2023-11-30 08:46:48,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 746 places, 973 transitions, 14753 flow. Second operand has 8 states, 8 states have (on average 588.25) internal successors, (4706), 8 states have internal predecessors, (4706), 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) [2023-11-30 08:46:48,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:48,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 680 [2023-11-30 08:46:48,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:50,370 INFO L124 PetriNetUnfolderBase]: 1150/4802 cut-off events. [2023-11-30 08:46:50,370 INFO L125 PetriNetUnfolderBase]: For 960588/1093633 co-relation queries the response was YES. [2023-11-30 08:46:50,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38045 conditions, 4802 events. 1150/4802 cut-off events. For 960588/1093633 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 46543 event pairs, 174 based on Foata normal form. 183/4311 useless extension candidates. Maximal degree in co-relation 26556. Up to 1310 conditions per place. [2023-11-30 08:46:50,482 INFO L140 encePairwiseOnDemand]: 664/680 looper letters, 238 selfloop transitions, 40 changer transitions 8/991 dead transitions. [2023-11-30 08:46:50,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 755 places, 991 transitions, 16191 flow [2023-11-30 08:46:50,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:46:50,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:46:50,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 5937 transitions. [2023-11-30 08:46:50,488 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8730882352941176 [2023-11-30 08:46:50,488 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 5937 transitions. [2023-11-30 08:46:50,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 5937 transitions. [2023-11-30 08:46:50,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:50,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 5937 transitions. [2023-11-30 08:46:50,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 593.7) internal successors, (5937), 10 states have internal predecessors, (5937), 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) [2023-11-30 08:46:50,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:46:50,500 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:46:50,500 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 151 predicate places. [2023-11-30 08:46:50,500 INFO L500 AbstractCegarLoop]: Abstraction has has 755 places, 991 transitions, 16191 flow [2023-11-30 08:46:50,501 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 588.25) internal successors, (4706), 8 states have internal predecessors, (4706), 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) [2023-11-30 08:46:50,501 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:50,502 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1, 1] [2023-11-30 08:46:50,502 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-30 08:46:50,502 INFO L425 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:50,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:50,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1471093383, now seen corresponding path program 1 times [2023-11-30 08:46:50,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:50,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178507788] [2023-11-30 08:46:50,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:50,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:50,709 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:50,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:50,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178507788] [2023-11-30 08:46:50,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178507788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:50,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:50,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:46:50,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423865904] [2023-11-30 08:46:50,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:50,710 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:46:50,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:50,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:46:50,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:46:50,714 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 680 [2023-11-30 08:46:50,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 755 places, 991 transitions, 16191 flow. Second operand has 8 states, 8 states have (on average 588.375) internal successors, (4707), 8 states have internal predecessors, (4707), 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) [2023-11-30 08:46:50,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:50,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 680 [2023-11-30 08:46:50,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:52,665 INFO L124 PetriNetUnfolderBase]: 1154/4798 cut-off events. [2023-11-30 08:46:52,665 INFO L125 PetriNetUnfolderBase]: For 964473/1099386 co-relation queries the response was YES. [2023-11-30 08:46:52,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39477 conditions, 4798 events. 1154/4798 cut-off events. For 964473/1099386 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 46644 event pairs, 176 based on Foata normal form. 200/4369 useless extension candidates. Maximal degree in co-relation 27766. Up to 1302 conditions per place. [2023-11-30 08:46:52,748 INFO L140 encePairwiseOnDemand]: 663/680 looper letters, 264 selfloop transitions, 45 changer transitions 19/1027 dead transitions. [2023-11-30 08:46:52,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 764 places, 1027 transitions, 18655 flow [2023-11-30 08:46:52,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:46:52,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:46:52,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 5937 transitions. [2023-11-30 08:46:52,753 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8730882352941176 [2023-11-30 08:46:52,753 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 5937 transitions. [2023-11-30 08:46:52,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 5937 transitions. [2023-11-30 08:46:52,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:52,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 5937 transitions. [2023-11-30 08:46:52,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 593.7) internal successors, (5937), 10 states have internal predecessors, (5937), 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) [2023-11-30 08:46:52,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:46:52,763 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:46:52,763 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 160 predicate places. [2023-11-30 08:46:52,763 INFO L500 AbstractCegarLoop]: Abstraction has has 764 places, 1027 transitions, 18655 flow [2023-11-30 08:46:52,764 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 588.375) internal successors, (4707), 8 states have internal predecessors, (4707), 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) [2023-11-30 08:46:52,764 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:52,764 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1] [2023-11-30 08:46:52,764 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-30 08:46:52,764 INFO L425 AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:52,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:52,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1030767136, now seen corresponding path program 1 times [2023-11-30 08:46:52,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:52,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177455639] [2023-11-30 08:46:52,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:52,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:52,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:52,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177455639] [2023-11-30 08:46:52,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177455639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:52,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:52,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:46:52,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159693285] [2023-11-30 08:46:52,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:52,821 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 08:46:52,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:52,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 08:46:52,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 08:46:52,823 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 641 out of 680 [2023-11-30 08:46:52,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 764 places, 1027 transitions, 18655 flow. Second operand has 3 states, 3 states have (on average 642.6666666666666) internal successors, (1928), 3 states have internal predecessors, (1928), 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) [2023-11-30 08:46:52,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:52,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 641 of 680 [2023-11-30 08:46:52,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:54,351 INFO L124 PetriNetUnfolderBase]: 1190/5025 cut-off events. [2023-11-30 08:46:54,351 INFO L125 PetriNetUnfolderBase]: For 1359569/1565234 co-relation queries the response was YES. [2023-11-30 08:46:54,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40791 conditions, 5025 events. 1190/5025 cut-off events. For 1359569/1565234 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 49166 event pairs, 184 based on Foata normal form. 19/4377 useless extension candidates. Maximal degree in co-relation 28091. Up to 1316 conditions per place. [2023-11-30 08:46:54,638 INFO L140 encePairwiseOnDemand]: 676/680 looper letters, 190 selfloop transitions, 3 changer transitions 19/1031 dead transitions. [2023-11-30 08:46:54,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 766 places, 1031 transitions, 19193 flow [2023-11-30 08:46:54,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 08:46:54,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 08:46:54,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1938 transitions. [2023-11-30 08:46:54,641 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.95 [2023-11-30 08:46:54,641 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1938 transitions. [2023-11-30 08:46:54,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1938 transitions. [2023-11-30 08:46:54,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:54,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1938 transitions. [2023-11-30 08:46:54,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 646.0) internal successors, (1938), 3 states have internal predecessors, (1938), 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) [2023-11-30 08:46:54,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 680.0) internal successors, (2720), 4 states have internal predecessors, (2720), 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) [2023-11-30 08:46:54,645 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 680.0) internal successors, (2720), 4 states have internal predecessors, (2720), 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) [2023-11-30 08:46:54,647 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 162 predicate places. [2023-11-30 08:46:54,647 INFO L500 AbstractCegarLoop]: Abstraction has has 766 places, 1031 transitions, 19193 flow [2023-11-30 08:46:54,648 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 642.6666666666666) internal successors, (1928), 3 states have internal predecessors, (1928), 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) [2023-11-30 08:46:54,648 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:54,648 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1] [2023-11-30 08:46:54,648 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-30 08:46:54,649 INFO L425 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:54,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:54,650 INFO L85 PathProgramCache]: Analyzing trace with hash -779648577, now seen corresponding path program 1 times [2023-11-30 08:46:54,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:54,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040014970] [2023-11-30 08:46:54,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:54,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:54,840 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:54,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:54,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040014970] [2023-11-30 08:46:54,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040014970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:54,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:54,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:46:54,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501326516] [2023-11-30 08:46:54,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:54,842 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:46:54,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:54,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:46:54,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:46:54,845 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 680 [2023-11-30 08:46:54,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 766 places, 1031 transitions, 19193 flow. Second operand has 6 states, 6 states have (on average 598.3333333333334) internal successors, (3590), 6 states have internal predecessors, (3590), 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) [2023-11-30 08:46:54,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:54,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 680 [2023-11-30 08:46:54,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:56,873 INFO L124 PetriNetUnfolderBase]: 1184/5019 cut-off events. [2023-11-30 08:46:56,873 INFO L125 PetriNetUnfolderBase]: For 1415771/1645329 co-relation queries the response was YES. [2023-11-30 08:46:56,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42097 conditions, 5019 events. 1184/5019 cut-off events. For 1415771/1645329 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 49064 event pairs, 189 based on Foata normal form. 107/4471 useless extension candidates. Maximal degree in co-relation 29051. Up to 1313 conditions per place. [2023-11-30 08:46:56,975 INFO L140 encePairwiseOnDemand]: 672/680 looper letters, 262 selfloop transitions, 12 changer transitions 19/1030 dead transitions. [2023-11-30 08:46:56,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 770 places, 1030 transitions, 19749 flow [2023-11-30 08:46:56,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:46:56,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:46:56,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3628 transitions. [2023-11-30 08:46:56,978 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8892156862745098 [2023-11-30 08:46:56,978 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3628 transitions. [2023-11-30 08:46:56,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3628 transitions. [2023-11-30 08:46:56,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:56,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3628 transitions. [2023-11-30 08:46:56,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 604.6666666666666) internal successors, (3628), 6 states have internal predecessors, (3628), 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) [2023-11-30 08:46:56,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 680.0) internal successors, (4760), 7 states have internal predecessors, (4760), 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) [2023-11-30 08:46:56,984 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 680.0) internal successors, (4760), 7 states have internal predecessors, (4760), 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) [2023-11-30 08:46:56,984 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 166 predicate places. [2023-11-30 08:46:56,984 INFO L500 AbstractCegarLoop]: Abstraction has has 770 places, 1030 transitions, 19749 flow [2023-11-30 08:46:56,985 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 598.3333333333334) internal successors, (3590), 6 states have internal predecessors, (3590), 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) [2023-11-30 08:46:56,985 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:56,985 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1] [2023-11-30 08:46:56,985 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-30 08:46:56,985 INFO L425 AbstractCegarLoop]: === Iteration 31 === Targeting thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:56,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:56,986 INFO L85 PathProgramCache]: Analyzing trace with hash -386199699, now seen corresponding path program 1 times [2023-11-30 08:46:56,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:56,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337888523] [2023-11-30 08:46:56,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:56,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:57,172 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:57,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:57,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337888523] [2023-11-30 08:46:57,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337888523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:57,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:57,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:46:57,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588295587] [2023-11-30 08:46:57,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:57,173 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:46:57,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:57,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:46:57,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:46:57,175 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 544 out of 680 [2023-11-30 08:46:57,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 770 places, 1030 transitions, 19749 flow. Second operand has 6 states, 6 states have (on average 549.1666666666666) internal successors, (3295), 6 states have internal predecessors, (3295), 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) [2023-11-30 08:46:57,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:46:57,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 544 of 680 [2023-11-30 08:46:57,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:46:59,736 INFO L124 PetriNetUnfolderBase]: 1438/5288 cut-off events. [2023-11-30 08:46:59,737 INFO L125 PetriNetUnfolderBase]: For 2938442/3384748 co-relation queries the response was YES. [2023-11-30 08:46:59,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52324 conditions, 5288 events. 1438/5288 cut-off events. For 2938442/3384748 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 52452 event pairs, 229 based on Foata normal form. 417/4949 useless extension candidates. Maximal degree in co-relation 38773. Up to 1570 conditions per place. [2023-11-30 08:46:59,836 INFO L140 encePairwiseOnDemand]: 658/680 looper letters, 297 selfloop transitions, 26 changer transitions 56/1080 dead transitions. [2023-11-30 08:46:59,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 775 places, 1080 transitions, 22323 flow [2023-11-30 08:46:59,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:46:59,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:46:59,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3948 transitions. [2023-11-30 08:46:59,839 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8294117647058824 [2023-11-30 08:46:59,839 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3948 transitions. [2023-11-30 08:46:59,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3948 transitions. [2023-11-30 08:46:59,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:46:59,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3948 transitions. [2023-11-30 08:46:59,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 564.0) internal successors, (3948), 7 states have internal predecessors, (3948), 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) [2023-11-30 08:46:59,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:59,845 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:46:59,846 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 171 predicate places. [2023-11-30 08:46:59,846 INFO L500 AbstractCegarLoop]: Abstraction has has 775 places, 1080 transitions, 22323 flow [2023-11-30 08:46:59,846 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 549.1666666666666) internal successors, (3295), 6 states have internal predecessors, (3295), 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) [2023-11-30 08:46:59,846 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:46:59,847 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1] [2023-11-30 08:46:59,847 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-30 08:46:59,847 INFO L425 AbstractCegarLoop]: === Iteration 32 === Targeting thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:46:59,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:46:59,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1037810086, now seen corresponding path program 1 times [2023-11-30 08:46:59,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:46:59,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558998930] [2023-11-30 08:46:59,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:46:59,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:46:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:46:59,996 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:46:59,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:46:59,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558998930] [2023-11-30 08:46:59,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558998930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:46:59,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:46:59,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:46:59,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309295697] [2023-11-30 08:46:59,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:46:59,998 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:46:59,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:46:59,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:46:59,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:47:00,000 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 544 out of 680 [2023-11-30 08:47:00,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 775 places, 1080 transitions, 22323 flow. Second operand has 6 states, 6 states have (on average 549.3333333333334) internal successors, (3296), 6 states have internal predecessors, (3296), 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) [2023-11-30 08:47:00,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:47:00,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 544 of 680 [2023-11-30 08:47:00,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:47:02,335 INFO L124 PetriNetUnfolderBase]: 1425/5268 cut-off events. [2023-11-30 08:47:02,335 INFO L125 PetriNetUnfolderBase]: For 3029870/3523320 co-relation queries the response was YES. [2023-11-30 08:47:02,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54082 conditions, 5268 events. 1425/5268 cut-off events. For 3029870/3523320 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 51942 event pairs, 236 based on Foata normal form. 485/5043 useless extension candidates. Maximal degree in co-relation 40215. Up to 1600 conditions per place. [2023-11-30 08:47:02,592 INFO L140 encePairwiseOnDemand]: 657/680 looper letters, 290 selfloop transitions, 31 changer transitions 98/1116 dead transitions. [2023-11-30 08:47:02,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 780 places, 1116 transitions, 24895 flow [2023-11-30 08:47:02,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:47:02,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:47:02,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3934 transitions. [2023-11-30 08:47:02,595 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8264705882352941 [2023-11-30 08:47:02,595 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3934 transitions. [2023-11-30 08:47:02,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3934 transitions. [2023-11-30 08:47:02,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:47:02,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3934 transitions. [2023-11-30 08:47:02,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 562.0) internal successors, (3934), 7 states have internal predecessors, (3934), 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) [2023-11-30 08:47:02,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:47:02,602 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 680.0) internal successors, (5440), 8 states have internal predecessors, (5440), 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) [2023-11-30 08:47:02,602 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 176 predicate places. [2023-11-30 08:47:02,602 INFO L500 AbstractCegarLoop]: Abstraction has has 780 places, 1116 transitions, 24895 flow [2023-11-30 08:47:02,603 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 549.3333333333334) internal successors, (3296), 6 states have internal predecessors, (3296), 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) [2023-11-30 08:47:02,603 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:47:02,603 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1] [2023-11-30 08:47:02,603 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-30 08:47:02,603 INFO L425 AbstractCegarLoop]: === Iteration 33 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:47:02,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:47:02,603 INFO L85 PathProgramCache]: Analyzing trace with hash 331280437, now seen corresponding path program 1 times [2023-11-30 08:47:02,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:47:02,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818624807] [2023-11-30 08:47:02,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:02,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:47:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:02,759 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:47:02,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:47:02,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818624807] [2023-11-30 08:47:02,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818624807] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:47:02,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:47:02,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:47:02,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505765871] [2023-11-30 08:47:02,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:47:02,760 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:47:02,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:47:02,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:47:02,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:47:02,764 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 680 [2023-11-30 08:47:02,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 780 places, 1116 transitions, 24895 flow. Second operand has 8 states, 8 states have (on average 588.125) internal successors, (4705), 8 states have internal predecessors, (4705), 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) [2023-11-30 08:47:02,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:47:02,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 680 [2023-11-30 08:47:02,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:47:05,282 INFO L124 PetriNetUnfolderBase]: 1434/5262 cut-off events. [2023-11-30 08:47:05,282 INFO L125 PetriNetUnfolderBase]: For 3257841/3697073 co-relation queries the response was YES. [2023-11-30 08:47:05,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55527 conditions, 5262 events. 1434/5262 cut-off events. For 3257841/3697073 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 52093 event pairs, 234 based on Foata normal form. 144/4713 useless extension candidates. Maximal degree in co-relation 41427. Up to 1596 conditions per place. [2023-11-30 08:47:05,391 INFO L140 encePairwiseOnDemand]: 664/680 looper letters, 239 selfloop transitions, 24 changer transitions 98/1116 dead transitions. [2023-11-30 08:47:05,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 788 places, 1116 transitions, 25483 flow [2023-11-30 08:47:05,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:47:05,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:47:05,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 5934 transitions. [2023-11-30 08:47:05,394 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8726470588235294 [2023-11-30 08:47:05,394 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 5934 transitions. [2023-11-30 08:47:05,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 5934 transitions. [2023-11-30 08:47:05,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:47:05,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 5934 transitions. [2023-11-30 08:47:05,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 593.4) internal successors, (5934), 10 states have internal predecessors, (5934), 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) [2023-11-30 08:47:05,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:47:05,404 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:47:05,404 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 184 predicate places. [2023-11-30 08:47:05,405 INFO L500 AbstractCegarLoop]: Abstraction has has 788 places, 1116 transitions, 25483 flow [2023-11-30 08:47:05,405 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 588.125) internal successors, (4705), 8 states have internal predecessors, (4705), 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) [2023-11-30 08:47:05,405 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:47:05,406 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:47:05,406 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-30 08:47:05,406 INFO L425 AbstractCegarLoop]: === Iteration 34 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:47:05,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:47:05,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1571117530, now seen corresponding path program 1 times [2023-11-30 08:47:05,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:47:05,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212839209] [2023-11-30 08:47:05,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:05,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:47:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:05,477 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:47:05,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:47:05,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212839209] [2023-11-30 08:47:05,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212839209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:47:05,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:47:05,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 08:47:05,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773469227] [2023-11-30 08:47:05,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:47:05,478 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 08:47:05,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:47:05,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 08:47:05,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 08:47:05,480 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 623 out of 680 [2023-11-30 08:47:05,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 788 places, 1116 transitions, 25483 flow. Second operand has 3 states, 3 states have (on average 626.3333333333334) internal successors, (1879), 3 states have internal predecessors, (1879), 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) [2023-11-30 08:47:05,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:47:05,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 623 of 680 [2023-11-30 08:47:05,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:47:09,281 INFO L124 PetriNetUnfolderBase]: 2013/7240 cut-off events. [2023-11-30 08:47:09,281 INFO L125 PetriNetUnfolderBase]: For 10908474/13378850 co-relation queries the response was YES. [2023-11-30 08:47:09,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78214 conditions, 7240 events. 2013/7240 cut-off events. For 10908474/13378850 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 78889 event pairs, 295 based on Foata normal form. 73/6281 useless extension candidates. Maximal degree in co-relation 63724. Up to 2238 conditions per place. [2023-11-30 08:47:09,482 INFO L140 encePairwiseOnDemand]: 672/680 looper letters, 246 selfloop transitions, 4 changer transitions 120/1206 dead transitions. [2023-11-30 08:47:09,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 790 places, 1206 transitions, 31367 flow [2023-11-30 08:47:09,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 08:47:09,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 08:47:09,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1922 transitions. [2023-11-30 08:47:09,484 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.942156862745098 [2023-11-30 08:47:09,484 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1922 transitions. [2023-11-30 08:47:09,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1922 transitions. [2023-11-30 08:47:09,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:47:09,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1922 transitions. [2023-11-30 08:47:09,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 640.6666666666666) internal successors, (1922), 3 states have internal predecessors, (1922), 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) [2023-11-30 08:47:09,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 680.0) internal successors, (2720), 4 states have internal predecessors, (2720), 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) [2023-11-30 08:47:09,487 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 680.0) internal successors, (2720), 4 states have internal predecessors, (2720), 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) [2023-11-30 08:47:09,488 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 186 predicate places. [2023-11-30 08:47:09,488 INFO L500 AbstractCegarLoop]: Abstraction has has 790 places, 1206 transitions, 31367 flow [2023-11-30 08:47:09,488 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 626.3333333333334) internal successors, (1879), 3 states have internal predecessors, (1879), 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) [2023-11-30 08:47:09,488 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:47:09,488 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:47:09,489 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-30 08:47:09,489 INFO L425 AbstractCegarLoop]: === Iteration 35 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:47:09,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:47:09,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1679760794, now seen corresponding path program 1 times [2023-11-30 08:47:09,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:47:09,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236405430] [2023-11-30 08:47:09,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:09,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:47:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:09,685 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:47:09,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:47:09,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236405430] [2023-11-30 08:47:09,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236405430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:47:09,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:47:09,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:47:09,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906681224] [2023-11-30 08:47:09,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:47:09,686 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:47:09,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:47:09,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:47:09,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:47:09,690 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 680 [2023-11-30 08:47:09,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 790 places, 1206 transitions, 31367 flow. Second operand has 8 states, 8 states have (on average 588.25) internal successors, (4706), 8 states have internal predecessors, (4706), 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) [2023-11-30 08:47:09,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:47:09,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 680 [2023-11-30 08:47:09,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:47:14,176 INFO L124 PetriNetUnfolderBase]: 2057/7218 cut-off events. [2023-11-30 08:47:14,177 INFO L125 PetriNetUnfolderBase]: For 11511963/14181161 co-relation queries the response was YES. [2023-11-30 08:47:14,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80685 conditions, 7218 events. 2057/7218 cut-off events. For 11511963/14181161 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 78982 event pairs, 307 based on Foata normal form. 795/6990 useless extension candidates. Maximal degree in co-relation 65968. Up to 2234 conditions per place. [2023-11-30 08:47:14,387 INFO L140 encePairwiseOnDemand]: 664/680 looper letters, 304 selfloop transitions, 25 changer transitions 120/1220 dead transitions. [2023-11-30 08:47:14,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 798 places, 1220 transitions, 32945 flow [2023-11-30 08:47:14,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:47:14,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:47:14,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 5932 transitions. [2023-11-30 08:47:14,391 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8723529411764706 [2023-11-30 08:47:14,391 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 5932 transitions. [2023-11-30 08:47:14,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 5932 transitions. [2023-11-30 08:47:14,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:47:14,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 5932 transitions. [2023-11-30 08:47:14,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 593.2) internal successors, (5932), 10 states have internal predecessors, (5932), 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) [2023-11-30 08:47:14,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:47:14,399 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:47:14,399 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 194 predicate places. [2023-11-30 08:47:14,399 INFO L500 AbstractCegarLoop]: Abstraction has has 798 places, 1220 transitions, 32945 flow [2023-11-30 08:47:14,400 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 588.25) internal successors, (4706), 8 states have internal predecessors, (4706), 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) [2023-11-30 08:47:14,400 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:47:14,400 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:47:14,400 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-30 08:47:14,400 INFO L425 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:47:14,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:47:14,401 INFO L85 PathProgramCache]: Analyzing trace with hash 80921677, now seen corresponding path program 1 times [2023-11-30 08:47:14,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:47:14,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605844200] [2023-11-30 08:47:14,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:14,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:47:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:14,782 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:47:14,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:47:14,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605844200] [2023-11-30 08:47:14,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605844200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:47:14,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:47:14,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:47:14,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871929505] [2023-11-30 08:47:14,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:47:14,783 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:47:14,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:47:14,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:47:14,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:47:14,788 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 680 [2023-11-30 08:47:14,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 798 places, 1220 transitions, 32945 flow. Second operand has 8 states, 8 states have (on average 588.25) internal successors, (4706), 8 states have internal predecessors, (4706), 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) [2023-11-30 08:47:14,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:47:14,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 680 [2023-11-30 08:47:14,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:47:19,409 INFO L124 PetriNetUnfolderBase]: 2075/7205 cut-off events. [2023-11-30 08:47:19,409 INFO L125 PetriNetUnfolderBase]: For 12397930/15014494 co-relation queries the response was YES. [2023-11-30 08:47:19,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82783 conditions, 7205 events. 2075/7205 cut-off events. For 12397930/15014494 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 79151 event pairs, 302 based on Foata normal form. 593/6799 useless extension candidates. Maximal degree in co-relation 67748. Up to 2234 conditions per place. [2023-11-30 08:47:19,580 INFO L140 encePairwiseOnDemand]: 664/680 looper letters, 265 selfloop transitions, 38 changer transitions 144/1218 dead transitions. [2023-11-30 08:47:19,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 806 places, 1218 transitions, 33559 flow [2023-11-30 08:47:19,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:47:19,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:47:19,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 5933 transitions. [2023-11-30 08:47:19,583 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8725 [2023-11-30 08:47:19,583 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 5933 transitions. [2023-11-30 08:47:19,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 5933 transitions. [2023-11-30 08:47:19,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:47:19,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 5933 transitions. [2023-11-30 08:47:19,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 593.3) internal successors, (5933), 10 states have internal predecessors, (5933), 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) [2023-11-30 08:47:19,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:47:19,590 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:47:19,591 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 202 predicate places. [2023-11-30 08:47:19,591 INFO L500 AbstractCegarLoop]: Abstraction has has 806 places, 1218 transitions, 33559 flow [2023-11-30 08:47:19,591 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 588.25) internal successors, (4706), 8 states have internal predecessors, (4706), 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) [2023-11-30 08:47:19,591 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:47:19,592 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:47:19,592 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-30 08:47:19,592 INFO L425 AbstractCegarLoop]: === Iteration 37 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:47:19,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:47:19,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1786393230, now seen corresponding path program 1 times [2023-11-30 08:47:19,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:47:19,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147139617] [2023-11-30 08:47:19,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:19,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:47:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:19,755 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:47:19,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:47:19,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147139617] [2023-11-30 08:47:19,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147139617] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:47:19,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:47:19,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:47:19,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551454275] [2023-11-30 08:47:19,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:47:19,757 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:47:19,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:47:19,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:47:19,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:47:19,760 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 680 [2023-11-30 08:47:19,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 806 places, 1218 transitions, 33559 flow. Second operand has 8 states, 8 states have (on average 588.375) internal successors, (4707), 8 states have internal predecessors, (4707), 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) [2023-11-30 08:47:19,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:47:19,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 680 [2023-11-30 08:47:19,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:47:24,266 INFO L124 PetriNetUnfolderBase]: 2105/7222 cut-off events. [2023-11-30 08:47:24,266 INFO L125 PetriNetUnfolderBase]: For 13697188/16221651 co-relation queries the response was YES. [2023-11-30 08:47:24,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85108 conditions, 7222 events. 2105/7222 cut-off events. For 13697188/16221651 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 79657 event pairs, 309 based on Foata normal form. 558/6815 useless extension candidates. Maximal degree in co-relation 69755. Up to 2186 conditions per place. [2023-11-30 08:47:24,444 INFO L140 encePairwiseOnDemand]: 664/680 looper letters, 211 selfloop transitions, 32 changer transitions 240/1240 dead transitions. [2023-11-30 08:47:24,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 814 places, 1240 transitions, 35869 flow [2023-11-30 08:47:24,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:47:24,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:47:24,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 5932 transitions. [2023-11-30 08:47:24,448 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8723529411764706 [2023-11-30 08:47:24,448 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 5932 transitions. [2023-11-30 08:47:24,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 5932 transitions. [2023-11-30 08:47:24,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:47:24,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 5932 transitions. [2023-11-30 08:47:24,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 593.2) internal successors, (5932), 10 states have internal predecessors, (5932), 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) [2023-11-30 08:47:24,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:47:24,455 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 680.0) internal successors, (7480), 11 states have internal predecessors, (7480), 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) [2023-11-30 08:47:24,455 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 210 predicate places. [2023-11-30 08:47:24,456 INFO L500 AbstractCegarLoop]: Abstraction has has 814 places, 1240 transitions, 35869 flow [2023-11-30 08:47:24,456 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 588.375) internal successors, (4707), 8 states have internal predecessors, (4707), 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) [2023-11-30 08:47:24,456 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:47:24,456 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:47:24,457 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-30 08:47:24,457 INFO L425 AbstractCegarLoop]: === Iteration 38 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:47:24,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:47:24,457 INFO L85 PathProgramCache]: Analyzing trace with hash 898824327, now seen corresponding path program 1 times [2023-11-30 08:47:24,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:47:24,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554628219] [2023-11-30 08:47:24,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:24,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:47:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:24,559 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:47:24,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:47:24,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554628219] [2023-11-30 08:47:24,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554628219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:47:24,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:47:24,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:47:24,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724547428] [2023-11-30 08:47:24,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:47:24,561 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:47:24,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:47:24,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:47:24,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:47:24,563 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 680 [2023-11-30 08:47:24,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 814 places, 1240 transitions, 35869 flow. Second operand has 4 states, 4 states have (on average 620.25) internal successors, (2481), 4 states have internal predecessors, (2481), 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) [2023-11-30 08:47:24,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:47:24,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 680 [2023-11-30 08:47:24,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:47:28,661 INFO L124 PetriNetUnfolderBase]: 2113/7216 cut-off events. [2023-11-30 08:47:28,661 INFO L125 PetriNetUnfolderBase]: For 10230664/13001798 co-relation queries the response was YES. [2023-11-30 08:47:28,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86708 conditions, 7216 events. 2113/7216 cut-off events. For 10230664/13001798 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 79263 event pairs, 313 based on Foata normal form. 1034/7289 useless extension candidates. Maximal degree in co-relation 70667. Up to 2194 conditions per place. [2023-11-30 08:47:28,827 INFO L140 encePairwiseOnDemand]: 672/680 looper letters, 170 selfloop transitions, 6 changer transitions 240/1245 dead transitions. [2023-11-30 08:47:28,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 818 places, 1245 transitions, 36821 flow [2023-11-30 08:47:28,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:47:28,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:47:28,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3152 transitions. [2023-11-30 08:47:28,828 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9270588235294117 [2023-11-30 08:47:28,829 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3152 transitions. [2023-11-30 08:47:28,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3152 transitions. [2023-11-30 08:47:28,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:47:28,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3152 transitions. [2023-11-30 08:47:28,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 630.4) internal successors, (3152), 5 states have internal predecessors, (3152), 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) [2023-11-30 08:47:28,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 680.0) internal successors, (4080), 6 states have internal predecessors, (4080), 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) [2023-11-30 08:47:28,832 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 680.0) internal successors, (4080), 6 states have internal predecessors, (4080), 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) [2023-11-30 08:47:28,833 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 214 predicate places. [2023-11-30 08:47:28,833 INFO L500 AbstractCegarLoop]: Abstraction has has 818 places, 1245 transitions, 36821 flow [2023-11-30 08:47:28,833 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 620.25) internal successors, (2481), 4 states have internal predecessors, (2481), 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) [2023-11-30 08:47:28,833 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:47:28,834 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 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, 1] [2023-11-30 08:47:28,834 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-11-30 08:47:28,834 INFO L425 AbstractCegarLoop]: === Iteration 39 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:47:28,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:47:28,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1906448289, now seen corresponding path program 1 times [2023-11-30 08:47:28,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:47:28,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947506714] [2023-11-30 08:47:28,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:28,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:47:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:28,936 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:47:28,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:47:28,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947506714] [2023-11-30 08:47:28,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947506714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:47:28,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:47:28,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:47:28,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490600831] [2023-11-30 08:47:28,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:47:28,938 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:47:28,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:47:28,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:47:28,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:47:28,940 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 680 [2023-11-30 08:47:28,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 818 places, 1245 transitions, 36821 flow. Second operand has 4 states, 4 states have (on average 620.5) internal successors, (2482), 4 states have internal predecessors, (2482), 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) [2023-11-30 08:47:28,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:47:28,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 680 [2023-11-30 08:47:28,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:47:33,276 INFO L124 PetriNetUnfolderBase]: 2129/7230 cut-off events. [2023-11-30 08:47:33,276 INFO L125 PetriNetUnfolderBase]: For 11929895/14803838 co-relation queries the response was YES. [2023-11-30 08:47:33,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88705 conditions, 7230 events. 2129/7230 cut-off events. For 11929895/14803838 co-relation queries the response was YES. Maximal size of possible extension queue 511. Compared 79611 event pairs, 319 based on Foata normal form. 82/6357 useless extension candidates. Maximal degree in co-relation 72344. Up to 2210 conditions per place. [2023-11-30 08:47:33,473 INFO L140 encePairwiseOnDemand]: 672/680 looper letters, 174 selfloop transitions, 6 changer transitions 240/1252 dead transitions. [2023-11-30 08:47:33,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 822 places, 1252 transitions, 37947 flow [2023-11-30 08:47:33,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:47:33,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:47:33,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3151 transitions. [2023-11-30 08:47:33,476 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9267647058823529 [2023-11-30 08:47:33,476 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3151 transitions. [2023-11-30 08:47:33,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3151 transitions. [2023-11-30 08:47:33,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:47:33,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3151 transitions. [2023-11-30 08:47:33,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 630.2) internal successors, (3151), 5 states have internal predecessors, (3151), 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) [2023-11-30 08:47:33,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 680.0) internal successors, (4080), 6 states have internal predecessors, (4080), 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) [2023-11-30 08:47:33,480 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 680.0) internal successors, (4080), 6 states have internal predecessors, (4080), 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) [2023-11-30 08:47:33,480 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 218 predicate places. [2023-11-30 08:47:33,480 INFO L500 AbstractCegarLoop]: Abstraction has has 822 places, 1252 transitions, 37947 flow [2023-11-30 08:47:33,481 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 620.5) internal successors, (2482), 4 states have internal predecessors, (2482), 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) [2023-11-30 08:47:33,481 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:47:33,481 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:47:33,481 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-11-30 08:47:33,481 INFO L425 AbstractCegarLoop]: === Iteration 40 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:47:33,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:47:33,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1477644516, now seen corresponding path program 1 times [2023-11-30 08:47:33,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:47:33,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314812924] [2023-11-30 08:47:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:33,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:47:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:33,604 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:47:33,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:47:33,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314812924] [2023-11-30 08:47:33,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314812924] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:47:33,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173387325] [2023-11-30 08:47:33,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:33,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:47:33,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:47:33,608 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:47:33,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-30 08:47:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:33,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 08:47:33,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:47:33,893 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:47:33,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:47:33,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173387325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:47:33,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 08:47:33,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-30 08:47:33,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59278268] [2023-11-30 08:47:33,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:47:33,894 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:47:33,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:47:33,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:47:33,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-30 08:47:33,896 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 680 [2023-11-30 08:47:33,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 822 places, 1252 transitions, 37947 flow. Second operand has 5 states, 5 states have (on average 621.4) internal successors, (3107), 5 states have internal predecessors, (3107), 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) [2023-11-30 08:47:33,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:47:33,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 680 [2023-11-30 08:47:33,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:47:38,721 INFO L124 PetriNetUnfolderBase]: 2457/8014 cut-off events. [2023-11-30 08:47:38,721 INFO L125 PetriNetUnfolderBase]: For 12852525/16090451 co-relation queries the response was YES. [2023-11-30 08:47:38,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104863 conditions, 8014 events. 2457/8014 cut-off events. For 12852525/16090451 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 94161 event pairs, 311 based on Foata normal form. 1246/8122 useless extension candidates. Maximal degree in co-relation 88183. Up to 2602 conditions per place. [2023-11-30 08:47:38,911 INFO L140 encePairwiseOnDemand]: 671/680 looper letters, 178 selfloop transitions, 8 changer transitions 349/1367 dead transitions. [2023-11-30 08:47:38,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 824 places, 1367 transitions, 48751 flow [2023-11-30 08:47:38,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:47:38,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:47:38,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3770 transitions. [2023-11-30 08:47:38,913 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9240196078431373 [2023-11-30 08:47:38,913 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3770 transitions. [2023-11-30 08:47:38,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3770 transitions. [2023-11-30 08:47:38,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:47:38,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3770 transitions. [2023-11-30 08:47:38,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 628.3333333333334) internal successors, (3770), 6 states have internal predecessors, (3770), 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) [2023-11-30 08:47:38,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 680.0) internal successors, (4760), 7 states have internal predecessors, (4760), 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) [2023-11-30 08:47:38,919 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 680.0) internal successors, (4760), 7 states have internal predecessors, (4760), 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) [2023-11-30 08:47:38,919 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 220 predicate places. [2023-11-30 08:47:38,919 INFO L500 AbstractCegarLoop]: Abstraction has has 824 places, 1367 transitions, 48751 flow [2023-11-30 08:47:38,919 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 621.4) internal successors, (3107), 5 states have internal predecessors, (3107), 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) [2023-11-30 08:47:38,919 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:47:38,920 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:47:38,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-30 08:47:39,120 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:47:39,121 INFO L425 AbstractCegarLoop]: === Iteration 41 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:47:39,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:47:39,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1437658443, now seen corresponding path program 1 times [2023-11-30 08:47:39,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:47:39,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451211439] [2023-11-30 08:47:39,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:39,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:47:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:39,257 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:47:39,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:47:39,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451211439] [2023-11-30 08:47:39,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451211439] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:47:39,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293270027] [2023-11-30 08:47:39,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:39,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:47:39,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:47:39,259 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:47:39,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-30 08:47:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:39,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:47:39,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:47:39,488 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:47:39,488 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:47:39,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293270027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:47:39,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 08:47:39,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-30 08:47:39,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873565100] [2023-11-30 08:47:39,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:47:39,490 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:47:39,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:47:39,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:47:39,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-30 08:47:39,492 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 680 [2023-11-30 08:47:39,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 824 places, 1367 transitions, 48751 flow. Second operand has 4 states, 4 states have (on average 622.5) internal successors, (2490), 4 states have internal predecessors, (2490), 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) [2023-11-30 08:47:39,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:47:39,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 680 [2023-11-30 08:47:39,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:47:44,397 INFO L124 PetriNetUnfolderBase]: 2456/8055 cut-off events. [2023-11-30 08:47:44,398 INFO L125 PetriNetUnfolderBase]: For 14231300/17486714 co-relation queries the response was YES. [2023-11-30 08:47:44,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106462 conditions, 8055 events. 2456/8055 cut-off events. For 14231300/17486714 co-relation queries the response was YES. Maximal size of possible extension queue 775. Compared 94553 event pairs, 305 based on Foata normal form. 1126/8047 useless extension candidates. Maximal degree in co-relation 89466. Up to 2601 conditions per place. [2023-11-30 08:47:44,625 INFO L140 encePairwiseOnDemand]: 674/680 looper letters, 180 selfloop transitions, 7 changer transitions 349/1368 dead transitions. [2023-11-30 08:47:44,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 826 places, 1368 transitions, 49941 flow [2023-11-30 08:47:44,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:47:44,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:47:44,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2507 transitions. [2023-11-30 08:47:44,626 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9216911764705882 [2023-11-30 08:47:44,626 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2507 transitions. [2023-11-30 08:47:44,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2507 transitions. [2023-11-30 08:47:44,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:47:44,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2507 transitions. [2023-11-30 08:47:44,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 626.75) internal successors, (2507), 4 states have internal predecessors, (2507), 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) [2023-11-30 08:47:44,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 680.0) internal successors, (3400), 5 states have internal predecessors, (3400), 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) [2023-11-30 08:47:44,630 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 680.0) internal successors, (3400), 5 states have internal predecessors, (3400), 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) [2023-11-30 08:47:44,630 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 222 predicate places. [2023-11-30 08:47:44,631 INFO L500 AbstractCegarLoop]: Abstraction has has 826 places, 1368 transitions, 49941 flow [2023-11-30 08:47:44,631 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 622.5) internal successors, (2490), 4 states have internal predecessors, (2490), 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) [2023-11-30 08:47:44,631 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:47:44,631 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:47:44,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-30 08:47:44,831 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2023-11-30 08:47:44,832 INFO L425 AbstractCegarLoop]: === Iteration 42 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:47:44,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:47:44,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1910079300, now seen corresponding path program 1 times [2023-11-30 08:47:44,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:47:44,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661186858] [2023-11-30 08:47:44,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:44,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:47:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:44,957 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:47:44,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:47:44,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661186858] [2023-11-30 08:47:44,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661186858] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:47:44,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962976715] [2023-11-30 08:47:44,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:44,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:47:44,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:47:44,960 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:47:44,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-30 08:47:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:45,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 08:47:45,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:47:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:47:45,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:47:45,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962976715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:47:45,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 08:47:45,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-30 08:47:45,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348206440] [2023-11-30 08:47:45,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:47:45,459 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:47:45,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:47:45,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:47:45,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-30 08:47:45,462 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 680 [2023-11-30 08:47:45,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 826 places, 1368 transitions, 49941 flow. Second operand has 5 states, 5 states have (on average 621.6) internal successors, (3108), 5 states have internal predecessors, (3108), 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) [2023-11-30 08:47:45,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:47:45,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 680 [2023-11-30 08:47:45,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:47:50,601 INFO L124 PetriNetUnfolderBase]: 2443/8040 cut-off events. [2023-11-30 08:47:50,602 INFO L125 PetriNetUnfolderBase]: For 15491522/18602874 co-relation queries the response was YES. [2023-11-30 08:47:50,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107869 conditions, 8040 events. 2443/8040 cut-off events. For 15491522/18602874 co-relation queries the response was YES. Maximal size of possible extension queue 771. Compared 93989 event pairs, 264 based on Foata normal form. 586/7505 useless extension candidates. Maximal degree in co-relation 90417. Up to 2595 conditions per place. [2023-11-30 08:47:50,796 INFO L140 encePairwiseOnDemand]: 671/680 looper letters, 186 selfloop transitions, 8 changer transitions 355/1377 dead transitions. [2023-11-30 08:47:50,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 828 places, 1377 transitions, 52023 flow [2023-11-30 08:47:50,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:47:50,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:47:50,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3768 transitions. [2023-11-30 08:47:50,798 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9235294117647059 [2023-11-30 08:47:50,798 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3768 transitions. [2023-11-30 08:47:50,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3768 transitions. [2023-11-30 08:47:50,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:47:50,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3768 transitions. [2023-11-30 08:47:50,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 628.0) internal successors, (3768), 6 states have internal predecessors, (3768), 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) [2023-11-30 08:47:50,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 680.0) internal successors, (4760), 7 states have internal predecessors, (4760), 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) [2023-11-30 08:47:50,804 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 680.0) internal successors, (4760), 7 states have internal predecessors, (4760), 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) [2023-11-30 08:47:50,804 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 224 predicate places. [2023-11-30 08:47:50,804 INFO L500 AbstractCegarLoop]: Abstraction has has 828 places, 1377 transitions, 52023 flow [2023-11-30 08:47:50,805 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 621.6) internal successors, (3108), 5 states have internal predecessors, (3108), 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) [2023-11-30 08:47:50,805 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:47:50,805 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:47:50,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-30 08:47:51,010 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:47:51,011 INFO L425 AbstractCegarLoop]: === Iteration 43 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:47:51,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:47:51,012 INFO L85 PathProgramCache]: Analyzing trace with hash 917085901, now seen corresponding path program 1 times [2023-11-30 08:47:51,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:47:51,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465155286] [2023-11-30 08:47:51,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:51,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:47:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:51,131 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:47:51,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:47:51,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465155286] [2023-11-30 08:47:51,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465155286] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:47:51,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103689086] [2023-11-30 08:47:51,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:51,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:47:51,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:47:51,133 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:47:51,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-30 08:47:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:51,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:47:51,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:47:51,387 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:47:51,388 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:47:51,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103689086] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:47:51,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 08:47:51,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-30 08:47:51,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033419569] [2023-11-30 08:47:51,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:47:51,389 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:47:51,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:47:51,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:47:51,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-30 08:47:51,392 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 680 [2023-11-30 08:47:51,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 828 places, 1377 transitions, 52023 flow. Second operand has 4 states, 4 states have (on average 622.75) internal successors, (2491), 4 states have internal predecessors, (2491), 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) [2023-11-30 08:47:51,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:47:51,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 680 [2023-11-30 08:47:51,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:47:56,436 INFO L124 PetriNetUnfolderBase]: 2440/8029 cut-off events. [2023-11-30 08:47:56,437 INFO L125 PetriNetUnfolderBase]: For 17257396/20284678 co-relation queries the response was YES. [2023-11-30 08:47:56,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109404 conditions, 8029 events. 2440/8029 cut-off events. For 17257396/20284678 co-relation queries the response was YES. Maximal size of possible extension queue 767. Compared 93620 event pairs, 296 based on Foata normal form. 360/7274 useless extension candidates. Maximal degree in co-relation 91631. Up to 2592 conditions per place. [2023-11-30 08:47:56,832 INFO L140 encePairwiseOnDemand]: 674/680 looper letters, 192 selfloop transitions, 7 changer transitions 355/1382 dead transitions. [2023-11-30 08:47:56,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 830 places, 1382 transitions, 53613 flow [2023-11-30 08:47:56,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:47:56,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:47:56,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2506 transitions. [2023-11-30 08:47:56,834 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9213235294117647 [2023-11-30 08:47:56,834 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2506 transitions. [2023-11-30 08:47:56,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2506 transitions. [2023-11-30 08:47:56,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:47:56,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2506 transitions. [2023-11-30 08:47:56,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 626.5) internal successors, (2506), 4 states have internal predecessors, (2506), 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) [2023-11-30 08:47:56,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 680.0) internal successors, (3400), 5 states have internal predecessors, (3400), 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) [2023-11-30 08:47:56,837 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 680.0) internal successors, (3400), 5 states have internal predecessors, (3400), 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) [2023-11-30 08:47:56,838 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 226 predicate places. [2023-11-30 08:47:56,838 INFO L500 AbstractCegarLoop]: Abstraction has has 830 places, 1382 transitions, 53613 flow [2023-11-30 08:47:56,838 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 622.75) internal successors, (2491), 4 states have internal predecessors, (2491), 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) [2023-11-30 08:47:56,839 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:47:56,839 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:47:56,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-30 08:47:57,039 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-11-30 08:47:57,040 INFO L425 AbstractCegarLoop]: === Iteration 44 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:47:57,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:47:57,040 INFO L85 PathProgramCache]: Analyzing trace with hash 480776245, now seen corresponding path program 1 times [2023-11-30 08:47:57,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:47:57,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174424260] [2023-11-30 08:47:57,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:47:57,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:47:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:47:57,103 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2023-11-30 08:47:57,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:47:57,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174424260] [2023-11-30 08:47:57,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174424260] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:47:57,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:47:57,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:47:57,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54059413] [2023-11-30 08:47:57,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:47:57,104 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 08:47:57,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:47:57,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 08:47:57,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 08:47:57,106 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 641 out of 680 [2023-11-30 08:47:57,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 830 places, 1382 transitions, 53613 flow. Second operand has 3 states, 3 states have (on average 643.3333333333334) internal successors, (1930), 3 states have internal predecessors, (1930), 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) [2023-11-30 08:47:57,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:47:57,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 641 of 680 [2023-11-30 08:47:57,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:48:02,421 INFO L124 PetriNetUnfolderBase]: 2456/8067 cut-off events. [2023-11-30 08:48:02,422 INFO L125 PetriNetUnfolderBase]: For 20005507/23442443 co-relation queries the response was YES. [2023-11-30 08:48:02,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111719 conditions, 8067 events. 2456/8067 cut-off events. For 20005507/23442443 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 94027 event pairs, 276 based on Foata normal form. 458/7409 useless extension candidates. Maximal degree in co-relation 92849. Up to 2608 conditions per place. [2023-11-30 08:48:02,633 INFO L140 encePairwiseOnDemand]: 676/680 looper letters, 160 selfloop transitions, 3 changer transitions 355/1386 dead transitions. [2023-11-30 08:48:02,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 832 places, 1386 transitions, 54791 flow [2023-11-30 08:48:02,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 08:48:02,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 08:48:02,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1938 transitions. [2023-11-30 08:48:02,634 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.95 [2023-11-30 08:48:02,634 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1938 transitions. [2023-11-30 08:48:02,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1938 transitions. [2023-11-30 08:48:02,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:48:02,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1938 transitions. [2023-11-30 08:48:02,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 646.0) internal successors, (1938), 3 states have internal predecessors, (1938), 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) [2023-11-30 08:48:02,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 680.0) internal successors, (2720), 4 states have internal predecessors, (2720), 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) [2023-11-30 08:48:02,637 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 680.0) internal successors, (2720), 4 states have internal predecessors, (2720), 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) [2023-11-30 08:48:02,637 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 228 predicate places. [2023-11-30 08:48:02,637 INFO L500 AbstractCegarLoop]: Abstraction has has 832 places, 1386 transitions, 54791 flow [2023-11-30 08:48:02,638 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 643.3333333333334) internal successors, (1930), 3 states have internal predecessors, (1930), 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) [2023-11-30 08:48:02,638 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:48:02,638 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:48:02,638 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-11-30 08:48:02,638 INFO L425 AbstractCegarLoop]: === Iteration 45 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:48:02,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:48:02,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1860056974, now seen corresponding path program 1 times [2023-11-30 08:48:02,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:48:02,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303444711] [2023-11-30 08:48:02,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:48:02,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:48:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:48:02,772 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:48:02,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:48:02,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303444711] [2023-11-30 08:48:02,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303444711] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:48:02,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121804587] [2023-11-30 08:48:02,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:48:02,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:48:02,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:48:02,774 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:48:02,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-30 08:48:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:48:02,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 08:48:02,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:48:03,095 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:48:03,095 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:48:03,195 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:48:03,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121804587] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:48:03,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:48:03,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-30 08:48:03,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093615095] [2023-11-30 08:48:03,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:48:03,199 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 08:48:03,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:48:03,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 08:48:03,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-30 08:48:03,203 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 680 [2023-11-30 08:48:03,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 832 places, 1386 transitions, 54791 flow. Second operand has 10 states, 10 states have (on average 622.1) internal successors, (6221), 10 states have internal predecessors, (6221), 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) [2023-11-30 08:48:03,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:48:03,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 680 [2023-11-30 08:48:03,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:48:12,729 INFO L124 PetriNetUnfolderBase]: 4074/13499 cut-off events. [2023-11-30 08:48:12,729 INFO L125 PetriNetUnfolderBase]: For 24597500/29317210 co-relation queries the response was YES. [2023-11-30 08:48:13,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189334 conditions, 13499 events. 4074/13499 cut-off events. For 24597500/29317210 co-relation queries the response was YES. Maximal size of possible extension queue 769. Compared 166279 event pairs, 440 based on Foata normal form. 1786/13051 useless extension candidates. Maximal degree in co-relation 156954. Up to 4558 conditions per place. [2023-11-30 08:48:13,131 INFO L140 encePairwiseOnDemand]: 671/680 looper letters, 336 selfloop transitions, 11 changer transitions 577/1754 dead transitions. [2023-11-30 08:48:13,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 840 places, 1754 transitions, 87420 flow [2023-11-30 08:48:13,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 08:48:13,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 08:48:13,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 5670 transitions. [2023-11-30 08:48:13,134 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9264705882352942 [2023-11-30 08:48:13,135 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 5670 transitions. [2023-11-30 08:48:13,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 5670 transitions. [2023-11-30 08:48:13,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:48:13,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 5670 transitions. [2023-11-30 08:48:13,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 630.0) internal successors, (5670), 9 states have internal predecessors, (5670), 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) [2023-11-30 08:48:13,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 680.0) internal successors, (6800), 10 states have internal predecessors, (6800), 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) [2023-11-30 08:48:13,142 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 680.0) internal successors, (6800), 10 states have internal predecessors, (6800), 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) [2023-11-30 08:48:13,142 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 236 predicate places. [2023-11-30 08:48:13,142 INFO L500 AbstractCegarLoop]: Abstraction has has 840 places, 1754 transitions, 87420 flow [2023-11-30 08:48:13,143 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 622.1) internal successors, (6221), 10 states have internal predecessors, (6221), 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) [2023-11-30 08:48:13,143 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:48:13,143 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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] [2023-11-30 08:48:13,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-30 08:48:13,344 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-30 08:48:13,344 INFO L425 AbstractCegarLoop]: === Iteration 46 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:48:13,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:48:13,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1353887757, now seen corresponding path program 1 times [2023-11-30 08:48:13,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:48:13,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074876307] [2023-11-30 08:48:13,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:48:13,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:48:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:48:13,416 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2023-11-30 08:48:13,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:48:13,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074876307] [2023-11-30 08:48:13,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074876307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:48:13,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:48:13,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:48:13,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705760276] [2023-11-30 08:48:13,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:48:13,418 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 08:48:13,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:48:13,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 08:48:13,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 08:48:13,419 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 641 out of 680 [2023-11-30 08:48:13,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 840 places, 1754 transitions, 87420 flow. Second operand has 3 states, 3 states have (on average 643.6666666666666) internal successors, (1931), 3 states have internal predecessors, (1931), 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) [2023-11-30 08:48:13,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:48:13,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 641 of 680 [2023-11-30 08:48:13,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:48:23,694 INFO L124 PetriNetUnfolderBase]: 4154/13642 cut-off events. [2023-11-30 08:48:23,694 INFO L125 PetriNetUnfolderBase]: For 30397230/35849730 co-relation queries the response was YES. [2023-11-30 08:48:23,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195848 conditions, 13642 events. 4154/13642 cut-off events. For 30397230/35849730 co-relation queries the response was YES. Maximal size of possible extension queue 789. Compared 168557 event pairs, 449 based on Foata normal form. 569/11942 useless extension candidates. Maximal degree in co-relation 162893. Up to 4638 conditions per place. [2023-11-30 08:48:24,074 INFO L140 encePairwiseOnDemand]: 676/680 looper letters, 275 selfloop transitions, 3 changer transitions 577/1766 dead transitions. [2023-11-30 08:48:24,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 842 places, 1766 transitions, 90040 flow [2023-11-30 08:48:24,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 08:48:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 08:48:24,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1938 transitions. [2023-11-30 08:48:24,075 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.95 [2023-11-30 08:48:24,075 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1938 transitions. [2023-11-30 08:48:24,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1938 transitions. [2023-11-30 08:48:24,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:48:24,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1938 transitions. [2023-11-30 08:48:24,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 646.0) internal successors, (1938), 3 states have internal predecessors, (1938), 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) [2023-11-30 08:48:24,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 680.0) internal successors, (2720), 4 states have internal predecessors, (2720), 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) [2023-11-30 08:48:24,078 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 680.0) internal successors, (2720), 4 states have internal predecessors, (2720), 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) [2023-11-30 08:48:24,078 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 238 predicate places. [2023-11-30 08:48:24,078 INFO L500 AbstractCegarLoop]: Abstraction has has 842 places, 1766 transitions, 90040 flow [2023-11-30 08:48:24,078 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 643.6666666666666) internal successors, (1931), 3 states have internal predecessors, (1931), 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) [2023-11-30 08:48:24,078 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:48:24,078 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 1] [2023-11-30 08:48:24,079 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-11-30 08:48:24,079 INFO L425 AbstractCegarLoop]: === Iteration 47 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:48:24,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:48:24,079 INFO L85 PathProgramCache]: Analyzing trace with hash -318508982, now seen corresponding path program 1 times [2023-11-30 08:48:24,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:48:24,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909546136] [2023-11-30 08:48:24,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:48:24,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:48:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:48:24,196 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:48:24,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:48:24,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909546136] [2023-11-30 08:48:24,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909546136] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:48:24,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026818705] [2023-11-30 08:48:24,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:48:24,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:48:24,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:48:24,200 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:48:24,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-30 08:48:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:48:24,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 08:48:24,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:48:24,501 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:48:24,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:48:24,608 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:48:24,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026818705] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:48:24,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:48:24,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-30 08:48:24,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624144365] [2023-11-30 08:48:24,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:48:24,609 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 08:48:24,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:48:24,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 08:48:24,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-30 08:48:24,613 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 680 [2023-11-30 08:48:24,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 842 places, 1766 transitions, 90040 flow. Second operand has 10 states, 10 states have (on average 622.2) internal successors, (6222), 10 states have internal predecessors, (6222), 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) [2023-11-30 08:48:24,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:48:24,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 680 [2023-11-30 08:48:24,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:48:49,140 INFO L124 PetriNetUnfolderBase]: 6461/21098 cut-off events. [2023-11-30 08:48:49,141 INFO L125 PetriNetUnfolderBase]: For 90224757/112529514 co-relation queries the response was YES. [2023-11-30 08:48:49,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303903 conditions, 21098 events. 6461/21098 cut-off events. For 90224757/112529514 co-relation queries the response was YES. Maximal size of possible extension queue 2099. Compared 297907 event pairs, 507 based on Foata normal form. 2516/20034 useless extension candidates. Maximal degree in co-relation 269861. Up to 7135 conditions per place. [2023-11-30 08:48:49,890 INFO L140 encePairwiseOnDemand]: 671/680 looper letters, 401 selfloop transitions, 11 changer transitions 947/2232 dead transitions. [2023-11-30 08:48:49,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 850 places, 2232 transitions, 134353 flow [2023-11-30 08:48:49,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 08:48:49,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 08:48:49,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 5667 transitions. [2023-11-30 08:48:49,893 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9259803921568628 [2023-11-30 08:48:49,893 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 5667 transitions. [2023-11-30 08:48:49,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 5667 transitions. [2023-11-30 08:48:49,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:48:49,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 5667 transitions. [2023-11-30 08:48:49,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 629.6666666666666) internal successors, (5667), 9 states have internal predecessors, (5667), 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) [2023-11-30 08:48:49,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 680.0) internal successors, (6800), 10 states have internal predecessors, (6800), 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) [2023-11-30 08:48:49,899 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 680.0) internal successors, (6800), 10 states have internal predecessors, (6800), 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) [2023-11-30 08:48:49,900 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 246 predicate places. [2023-11-30 08:48:49,900 INFO L500 AbstractCegarLoop]: Abstraction has has 850 places, 2232 transitions, 134353 flow [2023-11-30 08:48:49,900 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 622.2) internal successors, (6222), 10 states have internal predecessors, (6222), 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) [2023-11-30 08:48:49,900 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:48:49,901 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 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, 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, 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, 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, 1] [2023-11-30 08:48:49,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-30 08:48:50,101 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-30 08:48:50,103 INFO L425 AbstractCegarLoop]: === Iteration 48 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:48:50,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:48:50,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1580489339, now seen corresponding path program 1 times [2023-11-30 08:48:50,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:48:50,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664376169] [2023-11-30 08:48:50,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:48:50,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:48:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:48:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 158 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:48:50,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:48:50,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664376169] [2023-11-30 08:48:50,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664376169] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:48:50,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816560109] [2023-11-30 08:48:50,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:48:50,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:48:50,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:48:50,492 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:48:50,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-30 08:48:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:48:50,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 08:48:50,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:48:50,859 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 158 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:48:50,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:48:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 158 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:48:51,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816560109] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:48:51,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:48:51,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-11-30 08:48:51,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016041563] [2023-11-30 08:48:51,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:48:51,035 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-30 08:48:51,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:48:51,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-30 08:48:51,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2023-11-30 08:48:51,040 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 680 [2023-11-30 08:48:51,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 850 places, 2232 transitions, 134353 flow. Second operand has 16 states, 16 states have (on average 621.5625) internal successors, (9945), 16 states have internal predecessors, (9945), 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) [2023-11-30 08:48:51,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:48:51,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 680 [2023-11-30 08:48:51,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:49:34,001 INFO L124 PetriNetUnfolderBase]: 10264/34546 cut-off events. [2023-11-30 08:49:34,002 INFO L125 PetriNetUnfolderBase]: For 87685294/116479554 co-relation queries the response was YES. [2023-11-30 08:49:35,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494564 conditions, 34546 events. 10264/34546 cut-off events. For 87685294/116479554 co-relation queries the response was YES. Maximal size of possible extension queue 2100. Compared 511538 event pairs, 841 based on Foata normal form. 12667/40608 useless extension candidates. Maximal degree in co-relation 438347. Up to 11992 conditions per place. [2023-11-30 08:49:35,500 INFO L140 encePairwiseOnDemand]: 671/680 looper letters, 654 selfloop transitions, 27 changer transitions 1502/3056 dead transitions. [2023-11-30 08:49:35,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 869 places, 3056 transitions, 214339 flow [2023-11-30 08:49:35,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-30 08:49:35,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-30 08:49:35,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 12549 transitions. [2023-11-30 08:49:35,506 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9227205882352941 [2023-11-30 08:49:35,506 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 12549 transitions. [2023-11-30 08:49:35,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 12549 transitions. [2023-11-30 08:49:35,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:49:35,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 12549 transitions. [2023-11-30 08:49:35,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 627.45) internal successors, (12549), 20 states have internal predecessors, (12549), 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) [2023-11-30 08:49:35,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 680.0) internal successors, (14280), 21 states have internal predecessors, (14280), 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) [2023-11-30 08:49:35,520 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 680.0) internal successors, (14280), 21 states have internal predecessors, (14280), 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) [2023-11-30 08:49:35,521 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 265 predicate places. [2023-11-30 08:49:35,521 INFO L500 AbstractCegarLoop]: Abstraction has has 869 places, 3056 transitions, 214339 flow [2023-11-30 08:49:35,522 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 621.5625) internal successors, (9945), 16 states have internal predecessors, (9945), 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) [2023-11-30 08:49:35,522 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:49:35,522 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:49:35,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-30 08:49:35,728 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-30 08:49:35,729 INFO L425 AbstractCegarLoop]: === Iteration 49 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:49:35,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:49:35,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1373372003, now seen corresponding path program 1 times [2023-11-30 08:49:35,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:49:35,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406012957] [2023-11-30 08:49:35,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:49:35,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:49:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:49:35,947 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 158 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:49:35,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:49:35,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406012957] [2023-11-30 08:49:35,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406012957] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:49:35,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011181745] [2023-11-30 08:49:35,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:49:35,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:49:35,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:49:35,952 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:49:35,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-30 08:49:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:49:36,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 08:49:36,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:49:36,336 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 158 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:49:36,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:49:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 158 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:49:36,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011181745] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:49:36,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:49:36,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-11-30 08:49:36,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529807670] [2023-11-30 08:49:36,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:49:36,503 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-30 08:49:36,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:49:36,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-30 08:49:36,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2023-11-30 08:49:36,507 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 680 [2023-11-30 08:49:36,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 869 places, 3056 transitions, 214339 flow. Second operand has 16 states, 16 states have (on average 621.625) internal successors, (9946), 16 states have internal predecessors, (9946), 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) [2023-11-30 08:49:36,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:49:36,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 680 [2023-11-30 08:49:36,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:23,133 INFO L124 PetriNetUnfolderBase]: 15724/52035 cut-off events. [2023-11-30 08:51:23,134 INFO L125 PetriNetUnfolderBase]: For 234827632/338158439 co-relation queries the response was YES. [2023-11-30 08:51:25,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 757188 conditions, 52035 events. 15724/52035 cut-off events. For 234827632/338158439 co-relation queries the response was YES. Maximal size of possible extension queue 5528. Compared 862025 event pairs, 964 based on Foata normal form. 14456/56606 useless extension candidates. Maximal degree in co-relation 698740. Up to 17980 conditions per place. [2023-11-30 08:51:26,151 INFO L140 encePairwiseOnDemand]: 671/680 looper letters, 822 selfloop transitions, 27 changer transitions 2390/4180 dead transitions. [2023-11-30 08:51:26,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 888 places, 4180 transitions, 328249 flow [2023-11-30 08:51:26,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-30 08:51:26,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-30 08:51:26,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 12543 transitions. [2023-11-30 08:51:26,156 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9222794117647058 [2023-11-30 08:51:26,156 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 12543 transitions. [2023-11-30 08:51:26,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 12543 transitions. [2023-11-30 08:51:26,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:26,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 12543 transitions. [2023-11-30 08:51:26,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 627.15) internal successors, (12543), 20 states have internal predecessors, (12543), 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) [2023-11-30 08:51:26,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 680.0) internal successors, (14280), 21 states have internal predecessors, (14280), 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) [2023-11-30 08:51:26,170 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 680.0) internal successors, (14280), 21 states have internal predecessors, (14280), 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) [2023-11-30 08:51:26,170 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 284 predicate places. [2023-11-30 08:51:26,170 INFO L500 AbstractCegarLoop]: Abstraction has has 888 places, 4180 transitions, 328249 flow [2023-11-30 08:51:26,171 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 621.625) internal successors, (9946), 16 states have internal predecessors, (9946), 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) [2023-11-30 08:51:26,171 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:26,171 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:26,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-30 08:51:26,371 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:51:26,372 INFO L425 AbstractCegarLoop]: === Iteration 50 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:51:26,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:26,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1307071714, now seen corresponding path program 2 times [2023-11-30 08:51:26,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:26,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335017149] [2023-11-30 08:51:26,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:26,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:26,644 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 279 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:51:26,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:26,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335017149] [2023-11-30 08:51:26,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335017149] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:51:26,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467576285] [2023-11-30 08:51:26,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:51:26,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:51:26,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:51:26,648 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:51:26,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-30 08:51:26,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:51:26,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:51:26,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-30 08:51:26,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:51:26,937 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-30 08:51:26,937 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:51:26,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467576285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:26,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 08:51:26,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-11-30 08:51:26,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553545045] [2023-11-30 08:51:26,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:26,938 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:51:26,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:26,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:51:26,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-30 08:51:26,940 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 680 [2023-11-30 08:51:26,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 888 places, 4180 transitions, 328249 flow. Second operand has 5 states, 5 states have (on average 575.2) internal successors, (2876), 5 states have internal predecessors, (2876), 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) [2023-11-30 08:51:26,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:26,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 680 [2023-11-30 08:51:26,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:54:12,494 INFO L124 PetriNetUnfolderBase]: 15720/52058 cut-off events. [2023-11-30 08:54:12,494 INFO L125 PetriNetUnfolderBase]: For 176402690/327595018 co-relation queries the response was YES. [2023-11-30 08:54:14,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 771370 conditions, 52058 events. 15720/52058 cut-off events. For 176402690/327595018 co-relation queries the response was YES. Maximal size of possible extension queue 5528. Compared 860654 event pairs, 1254 based on Foata normal form. 29101/71289 useless extension candidates. Maximal degree in co-relation 711674. Up to 17976 conditions per place. [2023-11-30 08:54:15,661 INFO L140 encePairwiseOnDemand]: 651/680 looper letters, 952 selfloop transitions, 60 changer transitions 2390/4270 dead transitions. [2023-11-30 08:54:15,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 894 places, 4270 transitions, 340304 flow [2023-11-30 08:54:15,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:54:15,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:54:15,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 4666 transitions. [2023-11-30 08:54:15,663 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8577205882352941 [2023-11-30 08:54:15,663 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 4666 transitions. [2023-11-30 08:54:15,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 4666 transitions. [2023-11-30 08:54:15,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:54:15,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 4666 transitions. [2023-11-30 08:54:15,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 583.25) internal successors, (4666), 8 states have internal predecessors, (4666), 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) [2023-11-30 08:54:15,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 680.0) internal successors, (6120), 9 states have internal predecessors, (6120), 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) [2023-11-30 08:54:15,669 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 680.0) internal successors, (6120), 9 states have internal predecessors, (6120), 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) [2023-11-30 08:54:15,669 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 290 predicate places. [2023-11-30 08:54:15,670 INFO L500 AbstractCegarLoop]: Abstraction has has 894 places, 4270 transitions, 340304 flow [2023-11-30 08:54:15,670 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 575.2) internal successors, (2876), 5 states have internal predecessors, (2876), 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) [2023-11-30 08:54:15,670 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:54:15,670 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:54:15,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-30 08:54:15,873 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-30 08:54:15,873 INFO L425 AbstractCegarLoop]: === Iteration 51 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:54:15,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:54:15,874 INFO L85 PathProgramCache]: Analyzing trace with hash -90799370, now seen corresponding path program 2 times [2023-11-30 08:54:15,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:54:15,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709723733] [2023-11-30 08:54:15,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:54:15,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:54:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:54:16,118 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 279 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:54:16,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:54:16,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709723733] [2023-11-30 08:54:16,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709723733] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:54:16,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485434658] [2023-11-30 08:54:16,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:54:16,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:54:16,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:54:16,121 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:54:16,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-30 08:54:16,337 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:54:16,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:54:16,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-30 08:54:16,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:54:16,427 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-30 08:54:16,427 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:54:16,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485434658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:54:16,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 08:54:16,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-11-30 08:54:16,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424358769] [2023-11-30 08:54:16,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:54:16,428 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:54:16,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:54:16,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:54:16,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-30 08:54:16,431 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 680 [2023-11-30 08:54:16,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 894 places, 4270 transitions, 340304 flow. Second operand has 5 states, 5 states have (on average 575.4) internal successors, (2877), 5 states have internal predecessors, (2877), 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) [2023-11-30 08:54:16,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:54:16,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 680 [2023-11-30 08:54:16,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:06,276 INFO L124 PetriNetUnfolderBase]: 15688/52088 cut-off events. [2023-11-30 08:57:06,276 INFO L125 PetriNetUnfolderBase]: For 108783492/205111973 co-relation queries the response was YES. [2023-11-30 08:57:08,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 788936 conditions, 52088 events. 15688/52088 cut-off events. For 108783492/205111973 co-relation queries the response was YES. Maximal size of possible extension queue 5514. Compared 860924 event pairs, 888 based on Foata normal form. 10921/53385 useless extension candidates. Maximal degree in co-relation 728261. Up to 17944 conditions per place. [2023-11-30 08:57:09,289 INFO L140 encePairwiseOnDemand]: 651/680 looper letters, 1216 selfloop transitions, 60 changer transitions 2518/4703 dead transitions. [2023-11-30 08:57:09,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 900 places, 4703 transitions, 389260 flow [2023-11-30 08:57:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:57:09,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:57:09,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 4665 transitions. [2023-11-30 08:57:09,292 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8575367647058824 [2023-11-30 08:57:09,292 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 4665 transitions. [2023-11-30 08:57:09,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 4665 transitions. [2023-11-30 08:57:09,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:09,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 4665 transitions. [2023-11-30 08:57:09,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 583.125) internal successors, (4665), 8 states have internal predecessors, (4665), 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) [2023-11-30 08:57:09,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 680.0) internal successors, (6120), 9 states have internal predecessors, (6120), 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) [2023-11-30 08:57:09,298 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 680.0) internal successors, (6120), 9 states have internal predecessors, (6120), 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) [2023-11-30 08:57:09,299 INFO L307 CegarLoopForPetriNet]: 604 programPoint places, 296 predicate places. [2023-11-30 08:57:09,299 INFO L500 AbstractCegarLoop]: Abstraction has has 900 places, 4703 transitions, 389260 flow [2023-11-30 08:57:09,299 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 575.4) internal successors, (2877), 5 states have internal predecessors, (2877), 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) [2023-11-30 08:57:09,299 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:09,300 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 1] [2023-11-30 08:57:09,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-30 08:57:09,500 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:57:09,500 INFO L425 AbstractCegarLoop]: === Iteration 52 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2023-11-30 08:57:09,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:09,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1596360493, now seen corresponding path program 2 times [2023-11-30 08:57:09,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:09,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409990936] [2023-11-30 08:57:09,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:09,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:10,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1312 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-30 08:57:10,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:10,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409990936] [2023-11-30 08:57:10,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409990936] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:57:10,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491933019] [2023-11-30 08:57:10,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:57:10,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:57:10,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:57:10,088 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:57:10,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-30 08:57:10,310 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:57:10,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:57:10,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 08:57:10,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:57:10,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1312 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 1024 trivial. 0 not checked. [2023-11-30 08:57:10,407 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:57:10,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491933019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:10,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 08:57:10,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 17 [2023-11-30 08:57:10,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448556407] [2023-11-30 08:57:10,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:10,408 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:57:10,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:10,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:57:10,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2023-11-30 08:57:10,413 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 564 out of 680 [2023-11-30 08:57:10,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 900 places, 4703 transitions, 389260 flow. Second operand has 6 states, 6 states have (on average 569.6666666666666) internal successors, (3418), 6 states have internal predecessors, (3418), 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) [2023-11-30 08:57:10,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:10,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 564 of 680 [2023-11-30 08:57:10,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-11-30 08:58:39,179 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-30 08:58:39,180 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-30 08:58:40,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-11-30 08:58:40,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-30 08:58:40,614 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 80 remaining) [2023-11-30 08:58:40,615 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-11-30 08:58:40,615 WARN L624 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-11-30 08:58:40,616 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 80 remaining) [2023-11-30 08:58:40,616 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 80 remaining) [2023-11-30 08:58:40,616 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 80 remaining) [2023-11-30 08:58:40,616 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 80 remaining) [2023-11-30 08:58:40,616 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 80 remaining) [2023-11-30 08:58:40,617 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 80 remaining) [2023-11-30 08:58:40,617 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 80 remaining) [2023-11-30 08:58:40,617 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 80 remaining) [2023-11-30 08:58:40,617 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 80 remaining) [2023-11-30 08:58:40,617 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 80 remaining) [2023-11-30 08:58:40,617 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 80 remaining) [2023-11-30 08:58:40,617 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 80 remaining) [2023-11-30 08:58:40,617 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 80 remaining) [2023-11-30 08:58:40,617 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 80 remaining) [2023-11-30 08:58:40,617 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 80 remaining) [2023-11-30 08:58:40,618 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 80 remaining) [2023-11-30 08:58:40,618 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 80 remaining) [2023-11-30 08:58:40,618 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 80 remaining) [2023-11-30 08:58:40,618 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 80 remaining) [2023-11-30 08:58:40,618 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 80 remaining) [2023-11-30 08:58:40,618 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 80 remaining) [2023-11-30 08:58:40,618 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 80 remaining) [2023-11-30 08:58:40,618 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 80 remaining) [2023-11-30 08:58:40,618 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 80 remaining) [2023-11-30 08:58:40,618 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 80 remaining) [2023-11-30 08:58:40,618 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 80 remaining) [2023-11-30 08:58:40,619 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 80 remaining) [2023-11-30 08:58:40,619 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 80 remaining) [2023-11-30 08:58:40,619 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 80 remaining) [2023-11-30 08:58:40,619 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 80 remaining) [2023-11-30 08:58:40,619 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 80 remaining) [2023-11-30 08:58:40,619 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 80 remaining) [2023-11-30 08:58:40,619 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 80 remaining) [2023-11-30 08:58:40,619 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 80 remaining) [2023-11-30 08:58:40,619 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 80 remaining) [2023-11-30 08:58:40,619 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 80 remaining) [2023-11-30 08:58:40,619 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 80 remaining) [2023-11-30 08:58:40,620 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 80 remaining) [2023-11-30 08:58:40,620 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 80 remaining) [2023-11-30 08:58:40,620 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 80 remaining) [2023-11-30 08:58:40,620 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 80 remaining) [2023-11-30 08:58:40,620 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 80 remaining) [2023-11-30 08:58:40,620 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 80 remaining) [2023-11-30 08:58:40,620 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 80 remaining) [2023-11-30 08:58:40,620 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 80 remaining) [2023-11-30 08:58:40,620 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 80 remaining) [2023-11-30 08:58:40,620 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 80 remaining) [2023-11-30 08:58:40,620 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 80 remaining) [2023-11-30 08:58:40,621 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 80 remaining) [2023-11-30 08:58:40,621 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 80 remaining) [2023-11-30 08:58:40,621 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 80 remaining) [2023-11-30 08:58:40,621 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 80 remaining) [2023-11-30 08:58:40,621 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 80 remaining) [2023-11-30 08:58:40,621 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 80 remaining) [2023-11-30 08:58:40,621 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 80 remaining) [2023-11-30 08:58:40,621 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 80 remaining) [2023-11-30 08:58:40,621 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 80 remaining) [2023-11-30 08:58:40,621 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 80 remaining) [2023-11-30 08:58:40,621 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 80 remaining) [2023-11-30 08:58:40,621 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 80 remaining) [2023-11-30 08:58:40,621 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 80 remaining) [2023-11-30 08:58:40,621 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 80 remaining) [2023-11-30 08:58:40,621 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 80 remaining) [2023-11-30 08:58:40,622 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 80 remaining) [2023-11-30 08:58:40,622 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 80 remaining) [2023-11-30 08:58:40,622 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 80 remaining) [2023-11-30 08:58:40,622 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 80 remaining) [2023-11-30 08:58:40,622 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 80 remaining) [2023-11-30 08:58:40,622 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 80 remaining) [2023-11-30 08:58:40,622 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 80 remaining) [2023-11-30 08:58:40,622 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 80 remaining) [2023-11-30 08:58:40,622 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 80 remaining) [2023-11-30 08:58:40,622 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 80 remaining) [2023-11-30 08:58:40,622 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 80 remaining) [2023-11-30 08:58:40,623 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 80 remaining) [2023-11-30 08:58:40,623 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 80 remaining) [2023-11-30 08:58:40,623 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 80 remaining) [2023-11-30 08:58:40,623 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 80 remaining) [2023-11-30 08:58:40,623 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 80 remaining) [2023-11-30 08:58:40,624 INFO L457 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:58:40,628 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 08:58:40,628 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 08:58:40,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 08:58:40 BasicIcfg [2023-11-30 08:58:40,632 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 08:58:40,632 INFO L158 Benchmark]: Toolchain (without parser) took 743169.39ms. Allocated memory was 499.1MB in the beginning and 13.2GB in the end (delta: 12.7GB). Free memory was 448.6MB in the beginning and 7.2GB in the end (delta: -6.8GB). Peak memory consumption was 6.6GB. Max. memory is 16.0GB. [2023-11-30 08:58:40,632 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 343.9MB. Free memory is still 291.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 08:58:40,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.45ms. Allocated memory is still 499.1MB. Free memory was 448.1MB in the beginning and 434.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-11-30 08:58:40,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.34ms. Allocated memory is still 499.1MB. Free memory was 434.5MB in the beginning and 430.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-30 08:58:40,633 INFO L158 Benchmark]: Boogie Preprocessor took 73.35ms. Allocated memory is still 499.1MB. Free memory was 430.8MB in the beginning and 428.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:58:40,633 INFO L158 Benchmark]: RCFGBuilder took 754.50ms. Allocated memory is still 499.1MB. Free memory was 428.2MB in the beginning and 384.7MB in the end (delta: 43.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.0GB. [2023-11-30 08:58:40,633 INFO L158 Benchmark]: TraceAbstraction took 742040.80ms. Allocated memory was 499.1MB in the beginning and 13.2GB in the end (delta: 12.7GB). Free memory was 384.2MB in the beginning and 7.2GB in the end (delta: -6.8GB). Peak memory consumption was 6.5GB. Max. memory is 16.0GB. [2023-11-30 08:58:40,634 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 343.9MB. Free memory is still 291.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 235.45ms. Allocated memory is still 499.1MB. Free memory was 448.1MB in the beginning and 434.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 55.34ms. Allocated memory is still 499.1MB. Free memory was 434.5MB in the beginning and 430.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 73.35ms. Allocated memory is still 499.1MB. Free memory was 430.8MB in the beginning and 428.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 754.50ms. Allocated memory is still 499.1MB. Free memory was 428.2MB in the beginning and 384.7MB in the end (delta: 43.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.0GB. * TraceAbstraction took 742040.80ms. Allocated memory was 499.1MB in the beginning and 13.2GB in the end (delta: 12.7GB). Free memory was 384.2MB in the beginning and 7.2GB in the end (delta: -6.8GB). Peak memory consumption was 6.5GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 123]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 122]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 1052 locations, 80 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 741.8s, OverallIterations: 52, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 722.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4244 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4244 mSDsluCounter, 3661 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2266 mSDsCounter, 387 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7030 IncrementalHoareTripleChecker+Invalid, 7417 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 387 mSolverCounterUnsat, 1395 mSDtfsCounter, 7030 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7629 GetRequests, 7131 SyntacticMatches, 5 SemanticMatches, 493 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1393 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=389260occurred in iteration=51, InterpolantAutomatonStates: 389, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 19010 NumberOfCodeBlocks, 18002 NumberOfCodeBlocksAsserted, 69 NumberOfCheckSat, 20990 ConstructedInterpolants, 0 QuantifiedInterpolants, 40188 SizeOfPredicates, 57 NumberOfNonLiveVariables, 7284 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 77 InterpolantComputations, 44 PerfectInterpolantSequences, 13057/16303 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown