/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/popl20-commit-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 09:24:25,370 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 09:24:25,403 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 09:24:25,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 09:24:25,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 09:24:25,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 09:24:25,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 09:24:25,420 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 09:24:25,420 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 09:24:25,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 09:24:25,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 09:24:25,421 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 09:24:25,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 09:24:25,421 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 09:24:25,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 09:24:25,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 09:24:25,422 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 09:24:25,422 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 09:24:25,422 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 09:24:25,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 09:24:25,422 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 09:24:25,423 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 09:24:25,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 09:24:25,423 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 09:24:25,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 09:24:25,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 09:24:25,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 09:24:25,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 09:24:25,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 09:24:25,424 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 09:24:25,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 09:24:25,425 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 09:24:25,425 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 09:24:25,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 09:24:25,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 09:24:25,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 09:24:25,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 09:24:25,567 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 09:24:25,578 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 09:24:25,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-commit-2.wvr.c [2023-11-30 09:24:26,520 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 09:24:26,697 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 09:24:26,697 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-commit-2.wvr.c [2023-11-30 09:24:26,704 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/192a8e56f/753a26f5b45840f28cc3de3e0c5097a8/FLAGead355ea6 [2023-11-30 09:24:26,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/192a8e56f/753a26f5b45840f28cc3de3e0c5097a8 [2023-11-30 09:24:26,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 09:24:26,720 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 09:24:26,721 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 09:24:26,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 09:24:26,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 09:24:26,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 09:24:26" (1/1) ... [2023-11-30 09:24:26,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3535518f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:26, skipping insertion in model container [2023-11-30 09:24:26,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 09:24:26" (1/1) ... [2023-11-30 09:24:26,750 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 09:24:26,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 09:24:26,912 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 09:24:26,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 09:24:26,966 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 09:24:26,967 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 09:24:26,971 INFO L206 MainTranslator]: Completed translation [2023-11-30 09:24:26,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:26 WrapperNode [2023-11-30 09:24:26,972 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 09:24:26,972 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 09:24:26,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 09:24:26,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 09:24:26,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:26" (1/1) ... [2023-11-30 09:24:26,989 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:26" (1/1) ... [2023-11-30 09:24:27,022 INFO L138 Inliner]: procedures = 26, calls = 94, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 515 [2023-11-30 09:24:27,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 09:24:27,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 09:24:27,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 09:24:27,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 09:24:27,029 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:26" (1/1) ... [2023-11-30 09:24:27,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:26" (1/1) ... [2023-11-30 09:24:27,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:26" (1/1) ... [2023-11-30 09:24:27,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:26" (1/1) ... [2023-11-30 09:24:27,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:26" (1/1) ... [2023-11-30 09:24:27,049 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:26" (1/1) ... [2023-11-30 09:24:27,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:26" (1/1) ... [2023-11-30 09:24:27,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:26" (1/1) ... [2023-11-30 09:24:27,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 09:24:27,057 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 09:24:27,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 09:24:27,057 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 09:24:27,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:26" (1/1) ... [2023-11-30 09:24:27,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 09:24:27,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:27,086 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 09:24:27,095 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 09:24:27,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 09:24:27,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 09:24:27,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 09:24:27,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 09:24:27,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 09:24:27,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 09:24:27,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 09:24:27,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 09:24:27,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-30 09:24:27,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-30 09:24:27,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-30 09:24:27,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-30 09:24:27,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 09:24:27,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 09:24:27,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 09:24:27,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-30 09:24:27,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 09:24:27,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 09:24:27,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 09:24:27,114 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 09:24:27,204 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 09:24:27,206 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 09:24:27,725 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 09:24:27,998 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 09:24:27,998 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-30 09:24:27,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 09:24:27 BoogieIcfgContainer [2023-11-30 09:24:27,999 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 09:24:28,002 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 09:24:28,002 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 09:24:28,005 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 09:24:28,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 09:24:26" (1/3) ... [2023-11-30 09:24:28,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e53555b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 09:24:28, skipping insertion in model container [2023-11-30 09:24:28,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:26" (2/3) ... [2023-11-30 09:24:28,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e53555b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 09:24:28, skipping insertion in model container [2023-11-30 09:24:28,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 09:24:27" (3/3) ... [2023-11-30 09:24:28,007 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2023-11-30 09:24:28,021 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 09:24:28,021 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-30 09:24:28,022 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 09:24:28,148 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-30 09:24:28,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 380 places, 392 transitions, 812 flow [2023-11-30 09:24:28,320 INFO L124 PetriNetUnfolderBase]: 25/388 cut-off events. [2023-11-30 09:24:28,320 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-30 09:24:28,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 388 events. 25/388 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 350 event pairs, 0 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 340. Up to 2 conditions per place. [2023-11-30 09:24:28,328 INFO L82 GeneralOperation]: Start removeDead. Operand has 380 places, 392 transitions, 812 flow [2023-11-30 09:24:28,335 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 351 places, 362 transitions, 745 flow [2023-11-30 09:24:28,346 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 09:24:28,352 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;@1ed68ad8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 09:24:28,352 INFO L363 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-11-30 09:24:28,362 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 09:24:28,362 INFO L124 PetriNetUnfolderBase]: 3/78 cut-off events. [2023-11-30 09:24:28,362 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 09:24:28,362 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:28,363 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] [2023-11-30 09:24:28,363 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:24:28,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:28,367 INFO L85 PathProgramCache]: Analyzing trace with hash -343323386, now seen corresponding path program 1 times [2023-11-30 09:24:28,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:28,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758840250] [2023-11-30 09:24:28,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:28,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:28,688 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 09:24:28,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:28,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758840250] [2023-11-30 09:24:28,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758840250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:28,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:24:28,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:24:28,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819861024] [2023-11-30 09:24:28,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:28,696 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:24:28,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:28,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:24:28,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:24:28,719 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 392 [2023-11-30 09:24:28,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 362 transitions, 745 flow. Second operand has 4 states, 4 states have (on average 275.5) internal successors, (1102), 4 states have internal predecessors, (1102), 0 states have call successors, (0), 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 09:24:28,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:28,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 392 [2023-11-30 09:24:28,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:31,711 INFO L124 PetriNetUnfolderBase]: 7927/15613 cut-off events. [2023-11-30 09:24:31,711 INFO L125 PetriNetUnfolderBase]: For 1328/1328 co-relation queries the response was YES. [2023-11-30 09:24:31,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26920 conditions, 15613 events. 7927/15613 cut-off events. For 1328/1328 co-relation queries the response was YES. Maximal size of possible extension queue 1014. Compared 140462 event pairs, 5048 based on Foata normal form. 2718/12663 useless extension candidates. Maximal degree in co-relation 26057. Up to 10159 conditions per place. [2023-11-30 09:24:31,869 INFO L140 encePairwiseOnDemand]: 336/392 looper letters, 103 selfloop transitions, 20 changer transitions 8/370 dead transitions. [2023-11-30 09:24:31,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 370 transitions, 1007 flow [2023-11-30 09:24:31,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 09:24:31,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 09:24:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1533 transitions. [2023-11-30 09:24:31,883 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7821428571428571 [2023-11-30 09:24:31,883 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1533 transitions. [2023-11-30 09:24:31,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1533 transitions. [2023-11-30 09:24:31,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:31,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1533 transitions. [2023-11-30 09:24:31,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 306.6) internal successors, (1533), 5 states have internal predecessors, (1533), 0 states have call successors, (0), 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 09:24:31,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 392.0) internal successors, (2352), 6 states have internal predecessors, (2352), 0 states have call successors, (0), 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 09:24:31,899 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 392.0) internal successors, (2352), 6 states have internal predecessors, (2352), 0 states have call successors, (0), 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 09:24:31,902 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, -8 predicate places. [2023-11-30 09:24:31,902 INFO L500 AbstractCegarLoop]: Abstraction has has 343 places, 370 transitions, 1007 flow [2023-11-30 09:24:31,903 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 275.5) internal successors, (1102), 4 states have internal predecessors, (1102), 0 states have call successors, (0), 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 09:24:31,903 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:31,903 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] [2023-11-30 09:24:31,904 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 09:24:31,904 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:24:31,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:31,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1066140641, now seen corresponding path program 1 times [2023-11-30 09:24:31,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:31,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555086313] [2023-11-30 09:24:31,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:31,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:32,024 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 09:24:32,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:32,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555086313] [2023-11-30 09:24:32,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555086313] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:32,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530658665] [2023-11-30 09:24:32,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:32,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:32,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:32,027 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 09:24:32,052 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 09:24:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:32,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:24:32,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:32,226 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:32,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:24:32,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530658665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:32,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:24:32,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 09:24:32,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814544100] [2023-11-30 09:24:32,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:32,228 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:24:32,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:32,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:24:32,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 09:24:32,230 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 392 [2023-11-30 09:24:32,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 370 transitions, 1007 flow. Second operand has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 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 09:24:32,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:32,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 392 [2023-11-30 09:24:32,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:34,804 INFO L124 PetriNetUnfolderBase]: 7927/15609 cut-off events. [2023-11-30 09:24:34,805 INFO L125 PetriNetUnfolderBase]: For 2474/3184 co-relation queries the response was YES. [2023-11-30 09:24:34,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37099 conditions, 15609 events. 7927/15609 cut-off events. For 2474/3184 co-relation queries the response was YES. Maximal size of possible extension queue 1014. Compared 140798 event pairs, 5048 based on Foata normal form. 0/9945 useless extension candidates. Maximal degree in co-relation 36004. Up to 10155 conditions per place. [2023-11-30 09:24:34,941 INFO L140 encePairwiseOnDemand]: 368/392 looper letters, 87 selfloop transitions, 32 changer transitions 8/366 dead transitions. [2023-11-30 09:24:34,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 366 transitions, 1229 flow [2023-11-30 09:24:34,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 09:24:34,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 09:24:34,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2041 transitions. [2023-11-30 09:24:34,945 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7438046647230321 [2023-11-30 09:24:34,945 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2041 transitions. [2023-11-30 09:24:34,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2041 transitions. [2023-11-30 09:24:34,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:34,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2041 transitions. [2023-11-30 09:24:34,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 291.57142857142856) internal successors, (2041), 7 states have internal predecessors, (2041), 0 states have call successors, (0), 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 09:24:34,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 392.0) internal successors, (3136), 8 states have internal predecessors, (3136), 0 states have call successors, (0), 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 09:24:34,954 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 392.0) internal successors, (3136), 8 states have internal predecessors, (3136), 0 states have call successors, (0), 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 09:24:34,954 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, -6 predicate places. [2023-11-30 09:24:34,955 INFO L500 AbstractCegarLoop]: Abstraction has has 345 places, 366 transitions, 1229 flow [2023-11-30 09:24:34,955 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 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 09:24:34,956 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:34,956 INFO L232 CegarLoopForPetriNet]: trace histogram [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] [2023-11-30 09:24:34,970 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 09:24:35,170 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 09:24:35,171 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:24:35,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:35,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1309377000, now seen corresponding path program 1 times [2023-11-30 09:24:35,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:35,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922680492] [2023-11-30 09:24:35,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:35,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:35,323 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:35,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:35,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922680492] [2023-11-30 09:24:35,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922680492] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:35,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587339090] [2023-11-30 09:24:35,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:35,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:35,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:35,346 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 09:24:35,379 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 09:24:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:35,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:24:35,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:35,501 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:35,501 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:24:35,550 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:35,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587339090] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:24:35,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:24:35,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-30 09:24:35,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098751183] [2023-11-30 09:24:35,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:24:35,552 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 09:24:35,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:35,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 09:24:35,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-30 09:24:35,555 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 392 [2023-11-30 09:24:35,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 366 transitions, 1229 flow. Second operand has 12 states, 12 states have (on average 276.8333333333333) internal successors, (3322), 12 states have internal predecessors, (3322), 0 states have call successors, (0), 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 09:24:35,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:35,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 392 [2023-11-30 09:24:35,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:38,134 INFO L124 PetriNetUnfolderBase]: 7939/15749 cut-off events. [2023-11-30 09:24:38,138 INFO L125 PetriNetUnfolderBase]: For 4706/6126 co-relation queries the response was YES. [2023-11-30 09:24:38,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47738 conditions, 15749 events. 7939/15749 cut-off events. For 4706/6126 co-relation queries the response was YES. Maximal size of possible extension queue 1015. Compared 141159 event pairs, 5048 based on Foata normal form. 0/10073 useless extension candidates. Maximal degree in co-relation 45951. Up to 10259 conditions per place. [2023-11-30 09:24:38,491 INFO L140 encePairwiseOnDemand]: 364/392 looper letters, 151 selfloop transitions, 72 changer transitions 8/470 dead transitions. [2023-11-30 09:24:38,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 470 transitions, 2299 flow [2023-11-30 09:24:38,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 09:24:38,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 09:24:38,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 4071 transitions. [2023-11-30 09:24:38,502 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7418002915451894 [2023-11-30 09:24:38,502 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 4071 transitions. [2023-11-30 09:24:38,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 4071 transitions. [2023-11-30 09:24:38,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:38,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 4071 transitions. [2023-11-30 09:24:38,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 290.7857142857143) internal successors, (4071), 14 states have internal predecessors, (4071), 0 states have call successors, (0), 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 09:24:38,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 392.0) internal successors, (5880), 15 states have internal predecessors, (5880), 0 states have call successors, (0), 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 09:24:38,520 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 392.0) internal successors, (5880), 15 states have internal predecessors, (5880), 0 states have call successors, (0), 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 09:24:38,521 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 7 predicate places. [2023-11-30 09:24:38,523 INFO L500 AbstractCegarLoop]: Abstraction has has 358 places, 470 transitions, 2299 flow [2023-11-30 09:24:38,524 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 276.8333333333333) internal successors, (3322), 12 states have internal predecessors, (3322), 0 states have call successors, (0), 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 09:24:38,524 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:38,524 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 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] [2023-11-30 09:24:38,537 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 09:24:38,730 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 09:24:38,730 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:24:38,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:38,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1274764839, now seen corresponding path program 2 times [2023-11-30 09:24:38,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:38,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801807995] [2023-11-30 09:24:38,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:38,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:38,894 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:38,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:38,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801807995] [2023-11-30 09:24:38,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801807995] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:38,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931909113] [2023-11-30 09:24:38,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 09:24:38,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:38,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:38,896 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 09:24:38,939 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 09:24:39,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 09:24:39,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 09:24:39,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 09:24:39,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:39,124 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-30 09:24:39,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:24:39,219 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-30 09:24:39,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931909113] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:24:39,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:24:39,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2023-11-30 09:24:39,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908833670] [2023-11-30 09:24:39,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:24:39,220 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-30 09:24:39,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:39,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-30 09:24:39,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2023-11-30 09:24:39,225 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 392 [2023-11-30 09:24:39,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 470 transitions, 2299 flow. Second operand has 18 states, 18 states have (on average 246.77777777777777) internal successors, (4442), 18 states have internal predecessors, (4442), 0 states have call successors, (0), 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 09:24:39,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:39,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 392 [2023-11-30 09:24:39,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:41,199 INFO L124 PetriNetUnfolderBase]: 3262/7393 cut-off events. [2023-11-30 09:24:41,199 INFO L125 PetriNetUnfolderBase]: For 4648/5968 co-relation queries the response was YES. [2023-11-30 09:24:41,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25715 conditions, 7393 events. 3262/7393 cut-off events. For 4648/5968 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 60919 event pairs, 1994 based on Foata normal form. 0/5510 useless extension candidates. Maximal degree in co-relation 23489. Up to 4394 conditions per place. [2023-11-30 09:24:41,261 INFO L140 encePairwiseOnDemand]: 345/392 looper letters, 184 selfloop transitions, 132 changer transitions 8/533 dead transitions. [2023-11-30 09:24:41,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 533 transitions, 3435 flow [2023-11-30 09:24:41,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-11-30 09:24:41,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2023-11-30 09:24:41,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 12237 transitions. [2023-11-30 09:24:41,282 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6370783007080383 [2023-11-30 09:24:41,283 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 12237 transitions. [2023-11-30 09:24:41,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 12237 transitions. [2023-11-30 09:24:41,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:41,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 12237 transitions. [2023-11-30 09:24:41,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 249.73469387755102) internal successors, (12237), 49 states have internal predecessors, (12237), 0 states have call successors, (0), 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 09:24:41,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 392.0) internal successors, (19600), 50 states have internal predecessors, (19600), 0 states have call successors, (0), 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 09:24:41,340 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 392.0) internal successors, (19600), 50 states have internal predecessors, (19600), 0 states have call successors, (0), 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 09:24:41,342 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 48 predicate places. [2023-11-30 09:24:41,342 INFO L500 AbstractCegarLoop]: Abstraction has has 399 places, 533 transitions, 3435 flow [2023-11-30 09:24:41,343 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 246.77777777777777) internal successors, (4442), 18 states have internal predecessors, (4442), 0 states have call successors, (0), 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 09:24:41,343 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:41,343 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:41,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-30 09:24:41,547 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 09:24:41,550 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:24:41,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:41,550 INFO L85 PathProgramCache]: Analyzing trace with hash -418864549, now seen corresponding path program 1 times [2023-11-30 09:24:41,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:41,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882142861] [2023-11-30 09:24:41,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:41,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:41,841 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:41,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:41,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882142861] [2023-11-30 09:24:41,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882142861] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:41,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418936044] [2023-11-30 09:24:41,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:41,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:41,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:41,843 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 09:24:41,846 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 09:24:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:41,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-30 09:24:41,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:42,031 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:42,032 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:24:42,266 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:42,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418936044] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:24:42,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:24:42,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2023-11-30 09:24:42,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019797622] [2023-11-30 09:24:42,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:24:42,268 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-30 09:24:42,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:42,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-30 09:24:42,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2023-11-30 09:24:42,273 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 392 [2023-11-30 09:24:42,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 533 transitions, 3435 flow. Second operand has 32 states, 32 states have (on average 277.40625) internal successors, (8877), 32 states have internal predecessors, (8877), 0 states have call successors, (0), 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 09:24:42,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:42,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 392 [2023-11-30 09:24:42,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:44,653 INFO L124 PetriNetUnfolderBase]: 3294/7785 cut-off events. [2023-11-30 09:24:44,653 INFO L125 PetriNetUnfolderBase]: For 7843/9603 co-relation queries the response was YES. [2023-11-30 09:24:44,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31998 conditions, 7785 events. 3294/7785 cut-off events. For 7843/9603 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 63303 event pairs, 1994 based on Foata normal form. 0/5870 useless extension candidates. Maximal degree in co-relation 27554. Up to 4687 conditions per place. [2023-11-30 09:24:44,704 INFO L140 encePairwiseOnDemand]: 365/392 looper letters, 347 selfloop transitions, 232 changer transitions 8/826 dead transitions. [2023-11-30 09:24:44,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 826 transitions, 7523 flow [2023-11-30 09:24:44,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-30 09:24:44,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2023-11-30 09:24:44,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 12656 transitions. [2023-11-30 09:24:44,716 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7337662337662337 [2023-11-30 09:24:44,716 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 12656 transitions. [2023-11-30 09:24:44,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 12656 transitions. [2023-11-30 09:24:44,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:44,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 12656 transitions. [2023-11-30 09:24:44,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 287.6363636363636) internal successors, (12656), 44 states have internal predecessors, (12656), 0 states have call successors, (0), 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 09:24:44,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 392.0) internal successors, (17640), 45 states have internal predecessors, (17640), 0 states have call successors, (0), 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 09:24:44,749 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 392.0) internal successors, (17640), 45 states have internal predecessors, (17640), 0 states have call successors, (0), 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 09:24:44,749 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 91 predicate places. [2023-11-30 09:24:44,749 INFO L500 AbstractCegarLoop]: Abstraction has has 442 places, 826 transitions, 7523 flow [2023-11-30 09:24:44,751 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 277.40625) internal successors, (8877), 32 states have internal predecessors, (8877), 0 states have call successors, (0), 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 09:24:44,751 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:44,751 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, 1, 1, 1, 1, 1, 1, 1, 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 09:24:44,758 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 09:24:44,956 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:44,957 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:24:44,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:44,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1192228133, now seen corresponding path program 1 times [2023-11-30 09:24:44,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:44,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877164199] [2023-11-30 09:24:44,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:44,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:45,050 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 09:24:45,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:45,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877164199] [2023-11-30 09:24:45,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877164199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:45,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:24:45,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:24:45,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486531578] [2023-11-30 09:24:45,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:45,051 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 09:24:45,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:45,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 09:24:45,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 09:24:45,053 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 392 [2023-11-30 09:24:45,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 826 transitions, 7523 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 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 09:24:45,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:45,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 392 [2023-11-30 09:24:45,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:46,406 INFO L124 PetriNetUnfolderBase]: 3235/7032 cut-off events. [2023-11-30 09:24:46,407 INFO L125 PetriNetUnfolderBase]: For 9178/10818 co-relation queries the response was YES. [2023-11-30 09:24:46,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35031 conditions, 7032 events. 3235/7032 cut-off events. For 9178/10818 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 52764 event pairs, 596 based on Foata normal form. 22/5318 useless extension candidates. Maximal degree in co-relation 30547. Up to 4626 conditions per place. [2023-11-30 09:24:46,481 INFO L140 encePairwiseOnDemand]: 387/392 looper letters, 37 selfloop transitions, 4 changer transitions 8/838 dead transitions. [2023-11-30 09:24:46,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 838 transitions, 7764 flow [2023-11-30 09:24:46,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 09:24:46,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 09:24:46,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1020 transitions. [2023-11-30 09:24:46,483 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8673469387755102 [2023-11-30 09:24:46,483 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1020 transitions. [2023-11-30 09:24:46,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1020 transitions. [2023-11-30 09:24:46,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:46,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1020 transitions. [2023-11-30 09:24:46,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 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 09:24:46,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 0 states have call successors, (0), 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 09:24:46,486 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 0 states have call successors, (0), 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 09:24:46,487 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 93 predicate places. [2023-11-30 09:24:46,487 INFO L500 AbstractCegarLoop]: Abstraction has has 444 places, 838 transitions, 7764 flow [2023-11-30 09:24:46,487 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 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 09:24:46,487 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:46,487 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:46,487 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 09:24:46,487 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:24:46,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:46,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1095814365, now seen corresponding path program 1 times [2023-11-30 09:24:46,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:46,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368390479] [2023-11-30 09:24:46,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:46,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:46,605 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 09:24:46,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:46,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368390479] [2023-11-30 09:24:46,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368390479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:46,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:24:46,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 09:24:46,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680130191] [2023-11-30 09:24:46,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:46,607 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 09:24:46,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:46,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 09:24:46,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 09:24:46,608 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 392 [2023-11-30 09:24:46,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 838 transitions, 7764 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 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 09:24:46,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:46,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 392 [2023-11-30 09:24:46,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:47,854 INFO L124 PetriNetUnfolderBase]: 2746/6287 cut-off events. [2023-11-30 09:24:47,855 INFO L125 PetriNetUnfolderBase]: For 11460/12396 co-relation queries the response was YES. [2023-11-30 09:24:47,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34106 conditions, 6287 events. 2746/6287 cut-off events. For 11460/12396 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 46631 event pairs, 509 based on Foata normal form. 79/4853 useless extension candidates. Maximal degree in co-relation 30101. Up to 4039 conditions per place. [2023-11-30 09:24:47,931 INFO L140 encePairwiseOnDemand]: 388/392 looper letters, 48 selfloop transitions, 2 changer transitions 8/847 dead transitions. [2023-11-30 09:24:47,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 847 transitions, 7999 flow [2023-11-30 09:24:47,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 09:24:47,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 09:24:47,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1022 transitions. [2023-11-30 09:24:47,946 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8690476190476191 [2023-11-30 09:24:47,947 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1022 transitions. [2023-11-30 09:24:47,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1022 transitions. [2023-11-30 09:24:47,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:47,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1022 transitions. [2023-11-30 09:24:47,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.6666666666667) internal successors, (1022), 3 states have internal predecessors, (1022), 0 states have call successors, (0), 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 09:24:47,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 0 states have call successors, (0), 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 09:24:47,949 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 0 states have call successors, (0), 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 09:24:47,950 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 95 predicate places. [2023-11-30 09:24:47,950 INFO L500 AbstractCegarLoop]: Abstraction has has 446 places, 847 transitions, 7999 flow [2023-11-30 09:24:47,950 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 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 09:24:47,950 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:47,950 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:47,950 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 09:24:47,950 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:24:47,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:47,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1218653035, now seen corresponding path program 1 times [2023-11-30 09:24:47,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:47,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828043119] [2023-11-30 09:24:47,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:47,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:48,034 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 09:24:48,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:48,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828043119] [2023-11-30 09:24:48,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828043119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:48,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:24:48,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 09:24:48,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197856794] [2023-11-30 09:24:48,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:48,037 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 09:24:48,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:48,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 09:24:48,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 09:24:48,039 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 392 [2023-11-30 09:24:48,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 847 transitions, 7999 flow. Second operand has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 0 states have call successors, (0), 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 09:24:48,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:48,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 392 [2023-11-30 09:24:48,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:48,798 INFO L124 PetriNetUnfolderBase]: 1861/4354 cut-off events. [2023-11-30 09:24:48,799 INFO L125 PetriNetUnfolderBase]: For 10598/12292 co-relation queries the response was YES. [2023-11-30 09:24:48,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26037 conditions, 4354 events. 1861/4354 cut-off events. For 10598/12292 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 27247 event pairs, 346 based on Foata normal form. 44/3282 useless extension candidates. Maximal degree in co-relation 22234. Up to 2868 conditions per place. [2023-11-30 09:24:48,840 INFO L140 encePairwiseOnDemand]: 388/392 looper letters, 48 selfloop transitions, 2 changer transitions 8/847 dead transitions. [2023-11-30 09:24:48,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 847 transitions, 8093 flow [2023-11-30 09:24:48,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 09:24:48,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 09:24:48,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1023 transitions. [2023-11-30 09:24:48,842 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8698979591836735 [2023-11-30 09:24:48,842 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1023 transitions. [2023-11-30 09:24:48,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1023 transitions. [2023-11-30 09:24:48,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:48,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1023 transitions. [2023-11-30 09:24:48,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 341.0) internal successors, (1023), 3 states have internal predecessors, (1023), 0 states have call successors, (0), 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 09:24:48,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 0 states have call successors, (0), 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 09:24:48,844 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 0 states have call successors, (0), 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 09:24:48,844 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 97 predicate places. [2023-11-30 09:24:48,844 INFO L500 AbstractCegarLoop]: Abstraction has has 448 places, 847 transitions, 8093 flow [2023-11-30 09:24:48,845 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 0 states have call successors, (0), 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 09:24:48,845 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:48,845 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:48,845 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 09:24:48,845 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:24:48,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:48,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1278172860, now seen corresponding path program 1 times [2023-11-30 09:24:48,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:48,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902404805] [2023-11-30 09:24:48,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:48,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:49,047 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 09:24:49,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:49,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902404805] [2023-11-30 09:24:49,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902404805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:49,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:24:49,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 09:24:49,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963227332] [2023-11-30 09:24:49,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:49,049 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 09:24:49,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:49,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 09:24:49,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 09:24:49,050 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 392 [2023-11-30 09:24:49,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 847 transitions, 8093 flow. Second operand has 3 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 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 09:24:49,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:49,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 392 [2023-11-30 09:24:49,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:49,844 INFO L124 PetriNetUnfolderBase]: 1959/4105 cut-off events. [2023-11-30 09:24:49,845 INFO L125 PetriNetUnfolderBase]: For 13122/18130 co-relation queries the response was YES. [2023-11-30 09:24:49,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29338 conditions, 4105 events. 1959/4105 cut-off events. For 13122/18130 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 23123 event pairs, 337 based on Foata normal form. 78/2980 useless extension candidates. Maximal degree in co-relation 25526. Up to 3002 conditions per place. [2023-11-30 09:24:49,884 INFO L140 encePairwiseOnDemand]: 388/392 looper letters, 46 selfloop transitions, 2 changer transitions 14/851 dead transitions. [2023-11-30 09:24:49,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 851 transitions, 8273 flow [2023-11-30 09:24:49,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 09:24:49,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 09:24:49,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1028 transitions. [2023-11-30 09:24:49,886 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8741496598639455 [2023-11-30 09:24:49,886 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1028 transitions. [2023-11-30 09:24:49,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1028 transitions. [2023-11-30 09:24:49,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:49,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1028 transitions. [2023-11-30 09:24:49,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.6666666666667) internal successors, (1028), 3 states have internal predecessors, (1028), 0 states have call successors, (0), 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 09:24:49,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 0 states have call successors, (0), 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 09:24:49,888 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 0 states have call successors, (0), 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 09:24:49,889 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 99 predicate places. [2023-11-30 09:24:49,889 INFO L500 AbstractCegarLoop]: Abstraction has has 450 places, 851 transitions, 8273 flow [2023-11-30 09:24:49,889 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 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 09:24:49,889 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:49,889 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:49,889 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 09:24:49,889 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:24:49,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:49,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1038994079, now seen corresponding path program 1 times [2023-11-30 09:24:49,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:49,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597205033] [2023-11-30 09:24:49,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:49,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:50,030 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 09:24:50,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:50,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597205033] [2023-11-30 09:24:50,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597205033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:50,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:24:50,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-30 09:24:50,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539411025] [2023-11-30 09:24:50,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:50,031 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:24:50,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:50,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:24:50,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:24:50,032 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 392 [2023-11-30 09:24:50,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 851 transitions, 8273 flow. Second operand has 6 states, 6 states have (on average 276.8333333333333) internal successors, (1661), 6 states have internal predecessors, (1661), 0 states have call successors, (0), 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 09:24:50,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:50,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 392 [2023-11-30 09:24:50,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:51,131 INFO L124 PetriNetUnfolderBase]: 2003/4845 cut-off events. [2023-11-30 09:24:51,131 INFO L125 PetriNetUnfolderBase]: For 18543/24183 co-relation queries the response was YES. [2023-11-30 09:24:51,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35457 conditions, 4845 events. 2003/4845 cut-off events. For 18543/24183 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 28249 event pairs, 337 based on Foata normal form. 4/3588 useless extension candidates. Maximal degree in co-relation 28001. Up to 3403 conditions per place. [2023-11-30 09:24:51,184 INFO L140 encePairwiseOnDemand]: 381/392 looper letters, 702 selfloop transitions, 12 changer transitions 54/1160 dead transitions. [2023-11-30 09:24:51,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 1160 transitions, 13426 flow [2023-11-30 09:24:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 09:24:51,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 09:24:51,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2560 transitions. [2023-11-30 09:24:51,201 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7256235827664399 [2023-11-30 09:24:51,202 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2560 transitions. [2023-11-30 09:24:51,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2560 transitions. [2023-11-30 09:24:51,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:51,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2560 transitions. [2023-11-30 09:24:51,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 284.44444444444446) internal successors, (2560), 9 states have internal predecessors, (2560), 0 states have call successors, (0), 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 09:24:51,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 392.0) internal successors, (3920), 10 states have internal predecessors, (3920), 0 states have call successors, (0), 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 09:24:51,206 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 392.0) internal successors, (3920), 10 states have internal predecessors, (3920), 0 states have call successors, (0), 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 09:24:51,207 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 107 predicate places. [2023-11-30 09:24:51,207 INFO L500 AbstractCegarLoop]: Abstraction has has 458 places, 1160 transitions, 13426 flow [2023-11-30 09:24:51,207 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.8333333333333) internal successors, (1661), 6 states have internal predecessors, (1661), 0 states have call successors, (0), 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 09:24:51,207 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:51,207 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:51,207 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 09:24:51,207 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:24:51,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:51,208 INFO L85 PathProgramCache]: Analyzing trace with hash 286302244, now seen corresponding path program 1 times [2023-11-30 09:24:51,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:51,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683465045] [2023-11-30 09:24:51,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:51,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:51,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 09:24:51,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:51,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683465045] [2023-11-30 09:24:51,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683465045] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:51,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:24:51,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 09:24:51,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135804506] [2023-11-30 09:24:51,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:51,366 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:24:51,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:51,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:24:51,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:24:51,367 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 392 [2023-11-30 09:24:51,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 1160 transitions, 13426 flow. Second operand has 6 states, 6 states have (on average 277.5) internal successors, (1665), 6 states have internal predecessors, (1665), 0 states have call successors, (0), 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 09:24:51,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:51,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 392 [2023-11-30 09:24:51,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:52,631 INFO L124 PetriNetUnfolderBase]: 2034/5453 cut-off events. [2023-11-30 09:24:52,631 INFO L125 PetriNetUnfolderBase]: For 25875/32195 co-relation queries the response was YES. [2023-11-30 09:24:52,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41349 conditions, 5453 events. 2034/5453 cut-off events. For 25875/32195 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 33176 event pairs, 337 based on Foata normal form. 1/4149 useless extension candidates. Maximal degree in co-relation 30476. Up to 3689 conditions per place. [2023-11-30 09:24:52,678 INFO L140 encePairwiseOnDemand]: 380/392 looper letters, 828 selfloop transitions, 24 changer transitions 139/1383 dead transitions. [2023-11-30 09:24:52,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 1383 transitions, 18605 flow [2023-11-30 09:24:52,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 09:24:52,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 09:24:52,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2533 transitions. [2023-11-30 09:24:52,681 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7179705215419501 [2023-11-30 09:24:52,681 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2533 transitions. [2023-11-30 09:24:52,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2533 transitions. [2023-11-30 09:24:52,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:52,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2533 transitions. [2023-11-30 09:24:52,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 281.44444444444446) internal successors, (2533), 9 states have internal predecessors, (2533), 0 states have call successors, (0), 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 09:24:52,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 392.0) internal successors, (3920), 10 states have internal predecessors, (3920), 0 states have call successors, (0), 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 09:24:52,686 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 392.0) internal successors, (3920), 10 states have internal predecessors, (3920), 0 states have call successors, (0), 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 09:24:52,686 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 115 predicate places. [2023-11-30 09:24:52,686 INFO L500 AbstractCegarLoop]: Abstraction has has 466 places, 1383 transitions, 18605 flow [2023-11-30 09:24:52,687 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 277.5) internal successors, (1665), 6 states have internal predecessors, (1665), 0 states have call successors, (0), 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 09:24:52,687 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:52,687 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:52,687 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 09:24:52,687 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:24:52,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:52,687 INFO L85 PathProgramCache]: Analyzing trace with hash -255634721, now seen corresponding path program 1 times [2023-11-30 09:24:52,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:52,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392770242] [2023-11-30 09:24:52,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:52,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:52,860 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 09:24:52,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:52,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392770242] [2023-11-30 09:24:52,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392770242] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:52,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706729619] [2023-11-30 09:24:52,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:52,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:52,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:52,861 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 09:24:52,864 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 09:24:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:53,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:24:53,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:53,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:24:53,131 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:24:53,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706729619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:53,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:24:53,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2023-11-30 09:24:53,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620356102] [2023-11-30 09:24:53,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:53,132 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:24:53,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:53,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:24:53,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-30 09:24:53,133 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 392 [2023-11-30 09:24:53,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 1383 transitions, 18605 flow. Second operand has 4 states, 4 states have (on average 325.5) internal successors, (1302), 4 states have internal predecessors, (1302), 0 states have call successors, (0), 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 09:24:53,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:53,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 392 [2023-11-30 09:24:53,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:54,316 INFO L124 PetriNetUnfolderBase]: 1351/4447 cut-off events. [2023-11-30 09:24:54,316 INFO L125 PetriNetUnfolderBase]: For 24471/28851 co-relation queries the response was YES. [2023-11-30 09:24:54,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32556 conditions, 4447 events. 1351/4447 cut-off events. For 24471/28851 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 26544 event pairs, 231 based on Foata normal form. 0/3700 useless extension candidates. Maximal degree in co-relation 21637. Up to 2831 conditions per place. [2023-11-30 09:24:54,356 INFO L140 encePairwiseOnDemand]: 387/392 looper letters, 44 selfloop transitions, 3 changer transitions 139/1378 dead transitions. [2023-11-30 09:24:54,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 1378 transitions, 18643 flow [2023-11-30 09:24:54,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 09:24:54,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 09:24:54,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1320 transitions. [2023-11-30 09:24:54,357 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8418367346938775 [2023-11-30 09:24:54,357 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1320 transitions. [2023-11-30 09:24:54,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1320 transitions. [2023-11-30 09:24:54,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:54,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1320 transitions. [2023-11-30 09:24:54,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 330.0) internal successors, (1320), 4 states have internal predecessors, (1320), 0 states have call successors, (0), 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 09:24:54,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 392.0) internal successors, (1960), 5 states have internal predecessors, (1960), 0 states have call successors, (0), 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 09:24:54,362 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 392.0) internal successors, (1960), 5 states have internal predecessors, (1960), 0 states have call successors, (0), 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 09:24:54,362 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 116 predicate places. [2023-11-30 09:24:54,362 INFO L500 AbstractCegarLoop]: Abstraction has has 467 places, 1378 transitions, 18643 flow [2023-11-30 09:24:54,363 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 325.5) internal successors, (1302), 4 states have internal predecessors, (1302), 0 states have call successors, (0), 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 09:24:54,363 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:54,363 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:54,368 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 09:24:54,567 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-30 09:24:54,568 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:24:54,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:54,568 INFO L85 PathProgramCache]: Analyzing trace with hash 665259815, now seen corresponding path program 1 times [2023-11-30 09:24:54,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:54,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379113797] [2023-11-30 09:24:54,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:54,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:54,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:24:54,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:54,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379113797] [2023-11-30 09:24:54,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379113797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:54,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:24:54,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 09:24:54,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957987556] [2023-11-30 09:24:54,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:54,702 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:24:54,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:54,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:24:54,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:24:54,704 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 392 [2023-11-30 09:24:54,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 1378 transitions, 18643 flow. Second operand has 6 states, 6 states have (on average 278.3333333333333) internal successors, (1670), 6 states have internal predecessors, (1670), 0 states have call successors, (0), 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 09:24:54,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:54,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 392 [2023-11-30 09:24:54,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:56,009 INFO L124 PetriNetUnfolderBase]: 1354/4794 cut-off events. [2023-11-30 09:24:56,010 INFO L125 PetriNetUnfolderBase]: For 33338/38150 co-relation queries the response was YES. [2023-11-30 09:24:56,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36186 conditions, 4794 events. 1354/4794 cut-off events. For 33338/38150 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 30346 event pairs, 231 based on Foata normal form. 3/4033 useless extension candidates. Maximal degree in co-relation 23254. Up to 2883 conditions per place. [2023-11-30 09:24:56,050 INFO L140 encePairwiseOnDemand]: 380/392 looper letters, 824 selfloop transitions, 21 changer transitions 190/1427 dead transitions. [2023-11-30 09:24:56,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 1427 transitions, 21961 flow [2023-11-30 09:24:56,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 09:24:56,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 09:24:56,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2519 transitions. [2023-11-30 09:24:56,052 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7140022675736961 [2023-11-30 09:24:56,052 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2519 transitions. [2023-11-30 09:24:56,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2519 transitions. [2023-11-30 09:24:56,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:56,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2519 transitions. [2023-11-30 09:24:56,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 279.8888888888889) internal successors, (2519), 9 states have internal predecessors, (2519), 0 states have call successors, (0), 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 09:24:56,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 392.0) internal successors, (3920), 10 states have internal predecessors, (3920), 0 states have call successors, (0), 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 09:24:56,056 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 392.0) internal successors, (3920), 10 states have internal predecessors, (3920), 0 states have call successors, (0), 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 09:24:56,056 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 124 predicate places. [2023-11-30 09:24:56,056 INFO L500 AbstractCegarLoop]: Abstraction has has 475 places, 1427 transitions, 21961 flow [2023-11-30 09:24:56,056 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 278.3333333333333) internal successors, (1670), 6 states have internal predecessors, (1670), 0 states have call successors, (0), 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 09:24:56,056 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:56,057 INFO L232 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:56,057 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 09:24:56,057 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:24:56,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:56,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1424435053, now seen corresponding path program 2 times [2023-11-30 09:24:56,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:56,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126002564] [2023-11-30 09:24:56,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:56,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:56,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1022 backedges. 0 proven. 1022 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:56,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:56,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126002564] [2023-11-30 09:24:56,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126002564] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:56,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047719340] [2023-11-30 09:24:56,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 09:24:56,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:56,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:56,716 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 09:24:56,744 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 09:24:56,836 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 09:24:56,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 09:24:56,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 09:24:56,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:57,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1022 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-30 09:24:57,044 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:24:57,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1022 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-30 09:24:57,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047719340] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:24:57,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:24:57,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 7, 7] total 37 [2023-11-30 09:24:57,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983206008] [2023-11-30 09:24:57,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:24:57,221 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-30 09:24:57,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:57,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-30 09:24:57,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=1093, Unknown=0, NotChecked=0, Total=1406 [2023-11-30 09:24:57,226 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 392 [2023-11-30 09:24:57,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 1427 transitions, 21961 flow. Second operand has 38 states, 38 states have (on average 246.92105263157896) internal successors, (9383), 38 states have internal predecessors, (9383), 0 states have call successors, (0), 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 09:24:57,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:57,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 392 [2023-11-30 09:24:57,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:25:01,229 INFO L124 PetriNetUnfolderBase]: 901/4372 cut-off events. [2023-11-30 09:25:01,229 INFO L125 PetriNetUnfolderBase]: For 36854/40024 co-relation queries the response was YES. [2023-11-30 09:25:01,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31357 conditions, 4372 events. 901/4372 cut-off events. For 36854/40024 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 27772 event pairs, 109 based on Foata normal form. 0/3879 useless extension candidates. Maximal degree in co-relation 15528. Up to 2420 conditions per place. [2023-11-30 09:25:01,260 INFO L140 encePairwiseOnDemand]: 350/392 looper letters, 592 selfloop transitions, 547 changer transitions 208/1554 dead transitions. [2023-11-30 09:25:01,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 590 places, 1554 transitions, 26765 flow [2023-11-30 09:25:01,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2023-11-30 09:25:01,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2023-11-30 09:25:01,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 29596 transitions. [2023-11-30 09:25:01,276 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.634453781512605 [2023-11-30 09:25:01,276 INFO L72 ComplementDD]: Start complementDD. Operand 119 states and 29596 transitions. [2023-11-30 09:25:01,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 29596 transitions. [2023-11-30 09:25:01,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:25:01,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 119 states and 29596 transitions. [2023-11-30 09:25:01,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 120 states, 119 states have (on average 248.7058823529412) internal successors, (29596), 119 states have internal predecessors, (29596), 0 states have call successors, (0), 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 09:25:01,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 120 states, 120 states have (on average 392.0) internal successors, (47040), 120 states have internal predecessors, (47040), 0 states have call successors, (0), 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 09:25:01,340 INFO L81 ComplementDD]: Finished complementDD. Result has 120 states, 120 states have (on average 392.0) internal successors, (47040), 120 states have internal predecessors, (47040), 0 states have call successors, (0), 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 09:25:01,341 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 239 predicate places. [2023-11-30 09:25:01,341 INFO L500 AbstractCegarLoop]: Abstraction has has 590 places, 1554 transitions, 26765 flow [2023-11-30 09:25:01,342 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 246.92105263157896) internal successors, (9383), 38 states have internal predecessors, (9383), 0 states have call successors, (0), 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 09:25:01,342 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:25:01,342 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:25:01,353 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 09:25:01,544 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:25:01,545 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:25:01,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:25:01,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1073424165, now seen corresponding path program 1 times [2023-11-30 09:25:01,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:25:01,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723341920] [2023-11-30 09:25:01,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:25:01,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:25:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:25:01,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:25:01,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:25:01,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723341920] [2023-11-30 09:25:01,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723341920] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:25:01,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656930626] [2023-11-30 09:25:01,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:25:01,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:25:01,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:25:01,786 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 09:25:01,800 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 09:25:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:25:01,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:25:01,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:25:02,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-30 09:25:02,031 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:25:02,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656930626] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:25:02,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:25:02,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2023-11-30 09:25:02,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702399404] [2023-11-30 09:25:02,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:25:02,032 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:25:02,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:25:02,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:25:02,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-30 09:25:02,034 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 392 [2023-11-30 09:25:02,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 1554 transitions, 26765 flow. Second operand has 4 states, 4 states have (on average 325.75) internal successors, (1303), 4 states have internal predecessors, (1303), 0 states have call successors, (0), 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 09:25:02,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:25:02,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 392 [2023-11-30 09:25:02,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:25:03,134 INFO L124 PetriNetUnfolderBase]: 617/3902 cut-off events. [2023-11-30 09:25:03,134 INFO L125 PetriNetUnfolderBase]: For 35204/37150 co-relation queries the response was YES. [2023-11-30 09:25:03,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26518 conditions, 3902 events. 617/3902 cut-off events. For 35204/37150 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 24381 event pairs, 70 based on Foata normal form. 0/3594 useless extension candidates. Maximal degree in co-relation 14853. Up to 2056 conditions per place. [2023-11-30 09:25:03,147 INFO L140 encePairwiseOnDemand]: 387/392 looper letters, 7 selfloop transitions, 3 changer transitions 344/1550 dead transitions. [2023-11-30 09:25:03,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 1550 transitions, 26875 flow [2023-11-30 09:25:03,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 09:25:03,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 09:25:03,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1316 transitions. [2023-11-30 09:25:03,149 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8392857142857143 [2023-11-30 09:25:03,149 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1316 transitions. [2023-11-30 09:25:03,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1316 transitions. [2023-11-30 09:25:03,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:25:03,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1316 transitions. [2023-11-30 09:25:03,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 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 09:25:03,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 392.0) internal successors, (1960), 5 states have internal predecessors, (1960), 0 states have call successors, (0), 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 09:25:03,151 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 392.0) internal successors, (1960), 5 states have internal predecessors, (1960), 0 states have call successors, (0), 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 09:25:03,152 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 240 predicate places. [2023-11-30 09:25:03,152 INFO L500 AbstractCegarLoop]: Abstraction has has 591 places, 1550 transitions, 26875 flow [2023-11-30 09:25:03,152 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 325.75) internal successors, (1303), 4 states have internal predecessors, (1303), 0 states have call successors, (0), 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 09:25:03,152 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:25:03,152 INFO L232 CegarLoopForPetriNet]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:25:03,161 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 09:25:03,357 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:25:03,358 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:25:03,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:25:03,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1213561588, now seen corresponding path program 1 times [2023-11-30 09:25:03,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:25:03,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709521932] [2023-11-30 09:25:03,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:25:03,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:25:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:25:04,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 0 proven. 1328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:25:04,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:25:04,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709521932] [2023-11-30 09:25:04,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709521932] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:25:04,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523511855] [2023-11-30 09:25:04,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:25:04,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:25:04,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:25:04,140 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 09:25:04,152 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 09:25:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:25:04,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-30 09:25:04,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:25:04,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 0 proven. 1328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:25:04,459 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:25:05,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 0 proven. 1328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:25:05,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523511855] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:25:05,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:25:05,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 71 [2023-11-30 09:25:05,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655732210] [2023-11-30 09:25:05,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:25:05,301 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2023-11-30 09:25:05,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:25:05,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2023-11-30 09:25:05,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1331, Invalid=3781, Unknown=0, NotChecked=0, Total=5112 [2023-11-30 09:25:05,314 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 392 [2023-11-30 09:25:05,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 591 places, 1550 transitions, 26875 flow. Second operand has 72 states, 72 states have (on average 277.52777777777777) internal successors, (19982), 72 states have internal predecessors, (19982), 0 states have call successors, (0), 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 09:25:05,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:25:05,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 392 [2023-11-30 09:25:05,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:25:10,397 INFO L124 PetriNetUnfolderBase]: 779/5862 cut-off events. [2023-11-30 09:25:10,397 INFO L125 PetriNetUnfolderBase]: For 57024/59124 co-relation queries the response was YES. [2023-11-30 09:25:10,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43816 conditions, 5862 events. 779/5862 cut-off events. For 57024/59124 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 35345 event pairs, 70 based on Foata normal form. 0/5392 useless extension candidates. Maximal degree in co-relation 31460. Up to 3524 conditions per place. [2023-11-30 09:25:10,421 INFO L140 encePairwiseOnDemand]: 366/392 looper letters, 1130 selfloop transitions, 931 changer transitions 488/2746 dead transitions. [2023-11-30 09:25:10,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 694 places, 2746 transitions, 54411 flow [2023-11-30 09:25:10,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2023-11-30 09:25:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2023-11-30 09:25:10,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 29821 transitions. [2023-11-30 09:25:10,463 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7314805729984302 [2023-11-30 09:25:10,463 INFO L72 ComplementDD]: Start complementDD. Operand 104 states and 29821 transitions. [2023-11-30 09:25:10,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 29821 transitions. [2023-11-30 09:25:10,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:25:10,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 104 states and 29821 transitions. [2023-11-30 09:25:10,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 105 states, 104 states have (on average 286.74038461538464) internal successors, (29821), 104 states have internal predecessors, (29821), 0 states have call successors, (0), 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 09:25:10,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 105 states, 105 states have (on average 392.0) internal successors, (41160), 105 states have internal predecessors, (41160), 0 states have call successors, (0), 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 09:25:10,530 INFO L81 ComplementDD]: Finished complementDD. Result has 105 states, 105 states have (on average 392.0) internal successors, (41160), 105 states have internal predecessors, (41160), 0 states have call successors, (0), 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 09:25:10,531 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 343 predicate places. [2023-11-30 09:25:10,531 INFO L500 AbstractCegarLoop]: Abstraction has has 694 places, 2746 transitions, 54411 flow [2023-11-30 09:25:10,533 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 277.52777777777777) internal successors, (19982), 72 states have internal predecessors, (19982), 0 states have call successors, (0), 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 09:25:10,533 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:25:10,533 INFO L232 CegarLoopForPetriNet]: trace histogram [35, 35, 35, 35, 35, 35, 35, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:25:10,552 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 09:25:10,738 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,SelfDestructingSolverStorable15 [2023-11-30 09:25:10,739 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:25:10,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:25:10,739 INFO L85 PathProgramCache]: Analyzing trace with hash 101316978, now seen corresponding path program 2 times [2023-11-30 09:25:10,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:25:10,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468480075] [2023-11-30 09:25:10,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:25:10,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:25:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:25:13,334 INFO L134 CoverageAnalysis]: Checked inductivity of 5882 backedges. 0 proven. 5882 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:25:13,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:25:13,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468480075] [2023-11-30 09:25:13,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468480075] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:25:13,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683283037] [2023-11-30 09:25:13,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 09:25:13,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:25:13,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:25:13,336 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 09:25:13,339 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 09:25:13,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 09:25:13,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 09:25:13,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 09:25:13,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:25:13,961 INFO L134 CoverageAnalysis]: Checked inductivity of 5882 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 5644 trivial. 0 not checked. [2023-11-30 09:25:13,961 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:25:14,391 INFO L134 CoverageAnalysis]: Checked inductivity of 5882 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 5644 trivial. 0 not checked. [2023-11-30 09:25:14,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683283037] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:25:14,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:25:14,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 7, 7] total 77 [2023-11-30 09:25:14,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515849077] [2023-11-30 09:25:14,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:25:14,393 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2023-11-30 09:25:14,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:25:14,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2023-11-30 09:25:14,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1413, Invalid=4593, Unknown=0, NotChecked=0, Total=6006 [2023-11-30 09:25:14,401 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 392 [2023-11-30 09:25:14,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 694 places, 2746 transitions, 54411 flow. Second operand has 78 states, 78 states have (on average 246.84615384615384) internal successors, (19254), 78 states have internal predecessors, (19254), 0 states have call successors, (0), 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 09:25:14,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:25:14,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 392 [2023-11-30 09:25:14,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:25:27,131 INFO L124 PetriNetUnfolderBase]: 797/6081 cut-off events. [2023-11-30 09:25:27,131 INFO L125 PetriNetUnfolderBase]: For 69307/71561 co-relation queries the response was YES. [2023-11-30 09:25:27,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49285 conditions, 6081 events. 797/6081 cut-off events. For 69307/71561 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 36458 event pairs, 70 based on Foata normal form. 0/5595 useless extension candidates. Maximal degree in co-relation 36238. Up to 3681 conditions per place. [2023-11-30 09:25:27,151 INFO L140 encePairwiseOnDemand]: 353/392 looper letters, 1110 selfloop transitions, 1120 changer transitions 508/2876 dead transitions. [2023-11-30 09:25:27,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 951 places, 2876 transitions, 62463 flow [2023-11-30 09:25:27,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 259 states. [2023-11-30 09:25:27,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2023-11-30 09:25:27,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 64329 transitions. [2023-11-30 09:25:27,179 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6336084626900953 [2023-11-30 09:25:27,179 INFO L72 ComplementDD]: Start complementDD. Operand 259 states and 64329 transitions. [2023-11-30 09:25:27,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 259 states and 64329 transitions. [2023-11-30 09:25:27,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:25:27,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 259 states and 64329 transitions. [2023-11-30 09:25:27,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 260 states, 259 states have (on average 248.37451737451738) internal successors, (64329), 259 states have internal predecessors, (64329), 0 states have call successors, (0), 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 09:25:27,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 260 states, 260 states have (on average 392.0) internal successors, (101920), 260 states have internal predecessors, (101920), 0 states have call successors, (0), 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 09:25:27,309 INFO L81 ComplementDD]: Finished complementDD. Result has 260 states, 260 states have (on average 392.0) internal successors, (101920), 260 states have internal predecessors, (101920), 0 states have call successors, (0), 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 09:25:27,310 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 600 predicate places. [2023-11-30 09:25:27,310 INFO L500 AbstractCegarLoop]: Abstraction has has 951 places, 2876 transitions, 62463 flow [2023-11-30 09:25:27,311 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 246.84615384615384) internal successors, (19254), 78 states have internal predecessors, (19254), 0 states have call successors, (0), 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 09:25:27,312 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:25:27,312 INFO L232 CegarLoopForPetriNet]: trace histogram [37, 37, 37, 37, 37, 37, 37, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:25:27,334 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 09:25:27,517 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-30 09:25:27,517 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:25:27,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:25:27,517 INFO L85 PathProgramCache]: Analyzing trace with hash 2062214903, now seen corresponding path program 1 times [2023-11-30 09:25:27,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:25:27,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009418342] [2023-11-30 09:25:27,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:25:27,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:25:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:25:30,458 INFO L134 CoverageAnalysis]: Checked inductivity of 6588 backedges. 0 proven. 6588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:25:30,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:25:30,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009418342] [2023-11-30 09:25:30,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009418342] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:25:30,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992207434] [2023-11-30 09:25:30,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:25:30,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:25:30,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:25:30,460 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 09:25:30,487 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 09:25:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:25:30,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 75 conjunts are in the unsatisfiable core [2023-11-30 09:25:30,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:25:31,045 INFO L134 CoverageAnalysis]: Checked inductivity of 6588 backedges. 0 proven. 6588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:25:31,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:25:34,060 INFO L134 CoverageAnalysis]: Checked inductivity of 6588 backedges. 0 proven. 6588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:25:34,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992207434] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:25:34,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:25:34,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75, 75] total 151 [2023-11-30 09:25:34,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850996925] [2023-11-30 09:25:34,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:25:34,062 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 152 states [2023-11-30 09:25:34,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:25:34,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2023-11-30 09:25:34,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5851, Invalid=17101, Unknown=0, NotChecked=0, Total=22952 [2023-11-30 09:25:34,079 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 392 [2023-11-30 09:25:34,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 951 places, 2876 transitions, 62463 flow. Second operand has 152 states, 152 states have (on average 277.54605263157896) internal successors, (42187), 152 states have internal predecessors, (42187), 0 states have call successors, (0), 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 09:25:34,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:25:34,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 392 [2023-11-30 09:25:34,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:25:54,530 INFO L124 PetriNetUnfolderBase]: 1139/10201 cut-off events. [2023-11-30 09:25:54,530 INFO L125 PetriNetUnfolderBase]: For 127978/130386 co-relation queries the response was YES. [2023-11-30 09:25:54,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91124 conditions, 10201 events. 1139/10201 cut-off events. For 127978/130386 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 58643 event pairs, 70 based on Foata normal form. 0/9373 useless extension candidates. Maximal degree in co-relation 77386. Up to 6769 conditions per place. [2023-11-30 09:25:54,575 INFO L140 encePairwiseOnDemand]: 367/392 looper letters, 2372 selfloop transitions, 2011 changer transitions 812/5392 dead transitions. [2023-11-30 09:25:54,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1174 places, 5392 transitions, 130315 flow [2023-11-30 09:25:54,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 224 states. [2023-11-30 09:25:54,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2023-11-30 09:25:54,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 64142 transitions. [2023-11-30 09:25:54,599 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.730480138483965 [2023-11-30 09:25:54,599 INFO L72 ComplementDD]: Start complementDD. Operand 224 states and 64142 transitions. [2023-11-30 09:25:54,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 64142 transitions. [2023-11-30 09:25:54,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:25:54,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 224 states and 64142 transitions. [2023-11-30 09:25:54,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 225 states, 224 states have (on average 286.3482142857143) internal successors, (64142), 224 states have internal predecessors, (64142), 0 states have call successors, (0), 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 09:25:54,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 225 states, 225 states have (on average 392.0) internal successors, (88200), 225 states have internal predecessors, (88200), 0 states have call successors, (0), 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 09:25:54,709 INFO L81 ComplementDD]: Finished complementDD. Result has 225 states, 225 states have (on average 392.0) internal successors, (88200), 225 states have internal predecessors, (88200), 0 states have call successors, (0), 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 09:25:54,709 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 823 predicate places. [2023-11-30 09:25:54,709 INFO L500 AbstractCegarLoop]: Abstraction has has 1174 places, 5392 transitions, 130315 flow [2023-11-30 09:25:54,713 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 152 states, 152 states have (on average 277.54605263157896) internal successors, (42187), 152 states have internal predecessors, (42187), 0 states have call successors, (0), 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 09:25:54,713 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:25:54,714 INFO L232 CegarLoopForPetriNet]: trace histogram [75, 75, 75, 75, 75, 75, 75, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:25:54,734 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 09:25:54,918 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,SelfDestructingSolverStorable17 [2023-11-30 09:25:54,919 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-30 09:25:54,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:25:54,919 INFO L85 PathProgramCache]: Analyzing trace with hash 2048726703, now seen corresponding path program 2 times [2023-11-30 09:25:54,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:25:54,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310731937] [2023-11-30 09:25:54,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:25:54,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:25:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:26:08,467 INFO L134 CoverageAnalysis]: Checked inductivity of 27602 backedges. 0 proven. 27602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:26:08,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:26:08,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310731937] [2023-11-30 09:26:08,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310731937] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:26:08,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031527596] [2023-11-30 09:26:08,468 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 09:26:08,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:26:08,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:26:08,469 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 09:26:08,470 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 09:26:08,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 09:26:08,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 09:26:08,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 09:26:08,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:26:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 27602 backedges. 0 proven. 518 refuted. 0 times theorem prover too weak. 27084 trivial. 0 not checked. [2023-11-30 09:26:09,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:26:10,529 INFO L134 CoverageAnalysis]: Checked inductivity of 27602 backedges. 0 proven. 518 refuted. 0 times theorem prover too weak. 27084 trivial. 0 not checked. [2023-11-30 09:26:10,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031527596] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:26:10,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:26:10,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [151, 7, 7] total 157 [2023-11-30 09:26:10,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974341355] [2023-11-30 09:26:10,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:26:10,532 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 158 states [2023-11-30 09:26:10,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:26:10,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 158 interpolants. [2023-11-30 09:26:10,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6013, Invalid=18793, Unknown=0, NotChecked=0, Total=24806 [2023-11-30 09:26:10,552 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 392 [2023-11-30 09:26:10,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1174 places, 5392 transitions, 130315 flow. Second operand has 158 states, 158 states have (on average 246.7405063291139) internal successors, (38985), 158 states have internal predecessors, (38985), 0 states have call successors, (0), 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 09:26:10,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:26:10,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 392 [2023-11-30 09:26:10,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:27:04,843 INFO L124 PetriNetUnfolderBase]: 1157/10396 cut-off events. [2023-11-30 09:27:04,844 INFO L125 PetriNetUnfolderBase]: For 151164/153726 co-relation queries the response was YES. [2023-11-30 09:27:04,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99972 conditions, 10396 events. 1157/10396 cut-off events. For 151164/153726 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 59708 event pairs, 70 based on Foata normal form. 0/9554 useless extension candidates. Maximal degree in co-relation 85543. Up to 6912 conditions per place. [2023-11-30 09:27:04,880 INFO L140 encePairwiseOnDemand]: 354/392 looper letters, 0 selfloop transitions, 0 changer transitions 5514/5514 dead transitions. [2023-11-30 09:27:04,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1711 places, 5514 transitions, 143955 flow [2023-11-30 09:27:04,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 539 states. [2023-11-30 09:27:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2023-11-30 09:27:04,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 133806 transitions. [2023-11-30 09:27:04,957 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6332872666691909 [2023-11-30 09:27:04,963 INFO L72 ComplementDD]: Start complementDD. Operand 539 states and 133806 transitions. [2023-11-30 09:27:04,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 539 states and 133806 transitions. [2023-11-30 09:27:04,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:27:04,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 539 states and 133806 transitions. [2023-11-30 09:27:05,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 540 states, 539 states have (on average 248.2486085343228) internal successors, (133806), 539 states have internal predecessors, (133806), 0 states have call successors, (0), 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 09:27:05,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 540 states, 540 states have (on average 392.0) internal successors, (211680), 540 states have internal predecessors, (211680), 0 states have call successors, (0), 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 09:27:05,211 INFO L81 ComplementDD]: Finished complementDD. Result has 540 states, 540 states have (on average 392.0) internal successors, (211680), 540 states have internal predecessors, (211680), 0 states have call successors, (0), 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 09:27:05,211 INFO L307 CegarLoopForPetriNet]: 351 programPoint places, 1360 predicate places. [2023-11-30 09:27:05,212 INFO L500 AbstractCegarLoop]: Abstraction has has 1711 places, 5514 transitions, 143955 flow [2023-11-30 09:27:05,215 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 158 states, 158 states have (on average 246.7405063291139) internal successors, (38985), 158 states have internal predecessors, (38985), 0 states have call successors, (0), 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 09:27:05,233 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/popl20-commit-2.wvr.c_BEv2_AllErrorsAtOnce [2023-11-30 09:27:05,572 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 60 remaining) [2023-11-30 09:27:05,573 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 60 remaining) [2023-11-30 09:27:05,573 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 60 remaining) [2023-11-30 09:27:05,573 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 60 remaining) [2023-11-30 09:27:05,573 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 60 remaining) [2023-11-30 09:27:05,573 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 60 remaining) [2023-11-30 09:27:05,573 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 60 remaining) [2023-11-30 09:27:05,573 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 60 remaining) [2023-11-30 09:27:05,573 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 60 remaining) [2023-11-30 09:27:05,573 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 60 remaining) [2023-11-30 09:27:05,573 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 60 remaining) [2023-11-30 09:27:05,573 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 60 remaining) [2023-11-30 09:27:05,574 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 60 remaining) [2023-11-30 09:27:05,575 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 60 remaining) [2023-11-30 09:27:05,576 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 60 remaining) [2023-11-30 09:27:05,576 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 60 remaining) [2023-11-30 09:27:05,576 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 60 remaining) [2023-11-30 09:27:05,576 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 60 remaining) [2023-11-30 09:27:05,576 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 60 remaining) [2023-11-30 09:27:05,576 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 60 remaining) [2023-11-30 09:27:05,576 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 60 remaining) [2023-11-30 09:27:05,576 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 60 remaining) [2023-11-30 09:27:05,576 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 60 remaining) [2023-11-30 09:27:05,576 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 60 remaining) [2023-11-30 09:27:05,576 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 60 remaining) [2023-11-30 09:27:05,576 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 60 remaining) [2023-11-30 09:27:05,576 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 60 remaining) [2023-11-30 09:27:05,576 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 60 remaining) [2023-11-30 09:27:05,576 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 60 remaining) [2023-11-30 09:27:05,583 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 09:27:05,781 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:27:05,781 INFO L457 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:27:05,785 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 09:27:05,785 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 09:27:05,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 09:27:05 BasicIcfg [2023-11-30 09:27:05,789 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 09:27:05,790 INFO L158 Benchmark]: Toolchain (without parser) took 159070.03ms. Allocated memory was 448.8MB in the beginning and 9.6GB in the end (delta: 9.1GB). Free memory was 405.2MB in the beginning and 5.1GB in the end (delta: -4.7GB). Peak memory consumption was 4.4GB. Max. memory is 16.0GB. [2023-11-30 09:27:05,790 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 337.6MB. Free memory was 287.9MB in the beginning and 287.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 09:27:05,790 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.98ms. Allocated memory is still 448.8MB. Free memory was 404.9MB in the beginning and 390.2MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-11-30 09:27:05,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.60ms. Allocated memory is still 448.8MB. Free memory was 390.2MB in the beginning and 386.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-30 09:27:05,790 INFO L158 Benchmark]: Boogie Preprocessor took 34.22ms. Allocated memory is still 448.8MB. Free memory was 386.8MB in the beginning and 383.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 09:27:05,791 INFO L158 Benchmark]: RCFGBuilder took 942.04ms. Allocated memory is still 448.8MB. Free memory was 383.7MB in the beginning and 349.1MB in the end (delta: 34.6MB). Peak memory consumption was 43.0MB. Max. memory is 16.0GB. [2023-11-30 09:27:05,791 INFO L158 Benchmark]: TraceAbstraction took 157787.25ms. Allocated memory was 448.8MB in the beginning and 9.6GB in the end (delta: 9.1GB). Free memory was 348.1MB in the beginning and 5.1GB in the end (delta: -4.8GB). Peak memory consumption was 4.4GB. Max. memory is 16.0GB. [2023-11-30 09:27:05,792 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 337.6MB. Free memory was 287.9MB in the beginning and 287.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 250.98ms. Allocated memory is still 448.8MB. Free memory was 404.9MB in the beginning and 390.2MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.60ms. Allocated memory is still 448.8MB. Free memory was 390.2MB in the beginning and 386.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.22ms. Allocated memory is still 448.8MB. Free memory was 386.8MB in the beginning and 383.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 942.04ms. Allocated memory is still 448.8MB. Free memory was 383.7MB in the beginning and 349.1MB in the end (delta: 34.6MB). Peak memory consumption was 43.0MB. Max. memory is 16.0GB. * TraceAbstraction took 157787.25ms. Allocated memory was 448.8MB in the beginning and 9.6GB in the end (delta: 9.1GB). Free memory was 348.1MB in the beginning and 5.1GB in the end (delta: -4.8GB). Peak memory consumption was 4.4GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 68]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 68]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 98]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 98]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 116]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 116]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 122]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 122]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 196]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 196]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 196]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 196]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 196]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 196]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 196]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 196]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 134]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 134]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 140]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 140]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 440 locations, 60 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: 157.6s, OverallIterations: 19, TraceHistogramMax: 75, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 121.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36912 SdHoareTripleChecker+Valid, 9.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36912 mSDsluCounter, 3364 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2848 mSDsCounter, 5603 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16575 IncrementalHoareTripleChecker+Invalid, 22178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5603 mSolverCounterUnsat, 516 mSDtfsCounter, 16575 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7973 GetRequests, 6146 SyntacticMatches, 20 SemanticMatches, 1807 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252669 ImplicationChecksByTransitivity, 61.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=143955occurred in iteration=19, InterpolantAutomatonStates: 1411, 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: 0.4s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 30.4s InterpolantComputationTime, 8422 NumberOfCodeBlocks, 7162 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 11230 ConstructedInterpolants, 0 QuantifiedInterpolants, 25652 SizeOfPredicates, 151 NumberOfNonLiveVariables, 4620 ConjunctsInSsa, 173 ConjunctsInUnsatCore, 38 InterpolantComputations, 11 PerfectInterpolantSequences, 67450/128187 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 09:27:05,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...