/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 06:04:00,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 06:04:00,714 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-VariableLbe.epf [2023-08-27 06:04:00,718 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 06:04:00,719 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 06:04:00,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 06:04:00,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 06:04:00,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 06:04:00,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 06:04:00,755 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 06:04:00,755 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 06:04:00,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 06:04:00,756 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 06:04:00,756 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 06:04:00,756 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 06:04:00,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 06:04:00,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 06:04:00,757 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 06:04:00,757 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 06:04:00,757 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 06:04:00,757 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 06:04:00,757 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 06:04:00,758 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 06:04:00,758 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 06:04:00,758 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 06:04:00,758 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 06:04:00,759 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 06:04:00,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:04:00,759 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 06:04:00,759 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 06:04:00,760 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 06:04:00,760 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 06:04:00,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 06:04:00,761 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 06:04:00,761 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 06:04:00,761 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 06:04:01,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 06:04:01,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 06:04:01,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 06:04:01,108 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 06:04:01,110 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 06:04:01,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2023-08-27 06:04:02,353 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 06:04:02,560 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 06:04:02,561 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2023-08-27 06:04:02,570 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0e94200a/46d7413ccd2b47f1b93e1eca60a964b0/FLAG59fd9a31c [2023-08-27 06:04:02,588 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0e94200a/46d7413ccd2b47f1b93e1eca60a964b0 [2023-08-27 06:04:02,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 06:04:02,594 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 06:04:02,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 06:04:02,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 06:04:02,599 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 06:04:02,600 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:04:02" (1/1) ... [2023-08-27 06:04:02,601 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74fd57fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:04:02, skipping insertion in model container [2023-08-27 06:04:02,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:04:02" (1/1) ... [2023-08-27 06:04:02,626 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 06:04:02,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:04:02,807 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 06:04:02,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:04:02,844 INFO L206 MainTranslator]: Completed translation [2023-08-27 06:04:02,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:04:02 WrapperNode [2023-08-27 06:04:02,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 06:04:02,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 06:04:02,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 06:04:02,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 06:04:02,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:04:02" (1/1) ... [2023-08-27 06:04:02,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:04:02" (1/1) ... [2023-08-27 06:04:02,893 INFO L138 Inliner]: procedures = 25, calls = 38, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 238 [2023-08-27 06:04:02,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 06:04:02,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 06:04:02,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 06:04:02,895 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 06:04:02,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:04:02" (1/1) ... [2023-08-27 06:04:02,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:04:02" (1/1) ... [2023-08-27 06:04:02,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:04:02" (1/1) ... [2023-08-27 06:04:02,914 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:04:02" (1/1) ... [2023-08-27 06:04:02,922 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:04:02" (1/1) ... [2023-08-27 06:04:02,930 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:04:02" (1/1) ... [2023-08-27 06:04:02,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:04:02" (1/1) ... [2023-08-27 06:04:02,933 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:04:02" (1/1) ... [2023-08-27 06:04:02,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 06:04:02,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 06:04:02,937 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 06:04:02,937 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 06:04:02,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:04:02" (1/1) ... [2023-08-27 06:04:02,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:04:02,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:04:02,964 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) [2023-08-27 06:04:02,970 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 [2023-08-27 06:04:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 06:04:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 06:04:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 06:04:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 06:04:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 06:04:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 06:04:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 06:04:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 06:04:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 06:04:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-27 06:04:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 06:04:02,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 06:04:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 06:04:03,000 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 06:04:03,102 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 06:04:03,104 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 06:04:03,494 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 06:04:03,504 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 06:04:03,504 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-27 06:04:03,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:04:03 BoogieIcfgContainer [2023-08-27 06:04:03,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 06:04:03,508 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 06:04:03,508 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 06:04:03,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 06:04:03,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:04:02" (1/3) ... [2023-08-27 06:04:03,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7518dfdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:04:03, skipping insertion in model container [2023-08-27 06:04:03,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:04:02" (2/3) ... [2023-08-27 06:04:03,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7518dfdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:04:03, skipping insertion in model container [2023-08-27 06:04:03,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:04:03" (3/3) ... [2023-08-27 06:04:03,518 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2023-08-27 06:04:03,533 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 06:04:03,534 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2023-08-27 06:04:03,534 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 06:04:03,661 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-27 06:04:03,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 294 transitions, 604 flow [2023-08-27 06:04:03,847 INFO L124 PetriNetUnfolderBase]: 25/292 cut-off events. [2023-08-27 06:04:03,847 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 06:04:03,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 292 events. 25/292 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 507 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 185. Up to 2 conditions per place. [2023-08-27 06:04:03,856 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 294 transitions, 604 flow [2023-08-27 06:04:03,867 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 265 places, 283 transitions, 578 flow [2023-08-27 06:04:03,872 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 06:04:03,884 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 265 places, 283 transitions, 578 flow [2023-08-27 06:04:03,888 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 265 places, 283 transitions, 578 flow [2023-08-27 06:04:03,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 265 places, 283 transitions, 578 flow [2023-08-27 06:04:03,930 INFO L124 PetriNetUnfolderBase]: 25/283 cut-off events. [2023-08-27 06:04:03,930 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 06:04:03,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 283 events. 25/283 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 505 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 185. Up to 2 conditions per place. [2023-08-27 06:04:03,938 INFO L119 LiptonReduction]: Number of co-enabled transitions 12212 [2023-08-27 06:04:18,296 INFO L134 LiptonReduction]: Checked pairs total: 13295 [2023-08-27 06:04:18,296 INFO L136 LiptonReduction]: Total number of compositions: 373 [2023-08-27 06:04:18,308 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 06:04:18,312 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@467e674c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 06:04:18,313 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-08-27 06:04:18,314 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 06:04:18,314 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-08-27 06:04:18,314 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:04:18,314 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:04:18,315 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-27 06:04:18,315 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 06:04:18,318 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:04:18,318 INFO L85 PathProgramCache]: Analyzing trace with hash 39447, now seen corresponding path program 1 times [2023-08-27 06:04:18,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:04:18,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471305320] [2023-08-27 06:04:18,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:04:18,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:04:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:04:18,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:04:18,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:04:18,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471305320] [2023-08-27 06:04:18,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471305320] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:04:18,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:04:18,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:04:18,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423465070] [2023-08-27 06:04:18,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:04:18,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:04:18,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:04:18,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:04:18,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:04:18,605 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 667 [2023-08-27 06:04:18,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:18,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:04:18,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 667 [2023-08-27 06:04:18,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:04:18,772 INFO L124 PetriNetUnfolderBase]: 279/482 cut-off events. [2023-08-27 06:04:18,772 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2023-08-27 06:04:18,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 999 conditions, 482 events. 279/482 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2007 event pairs, 237 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 900. Up to 477 conditions per place. [2023-08-27 06:04:18,776 INFO L140 encePairwiseOnDemand]: 658/667 looper letters, 31 selfloop transitions, 2 changer transitions 0/33 dead transitions. [2023-08-27 06:04:18,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 144 flow [2023-08-27 06:04:18,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:04:18,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:04:18,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 808 transitions. [2023-08-27 06:04:18,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40379810094952523 [2023-08-27 06:04:18,798 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 808 transitions. [2023-08-27 06:04:18,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 808 transitions. [2023-08-27 06:04:18,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:04:18,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 808 transitions. [2023-08-27 06:04:18,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:18,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:18,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:18,817 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 92 flow. Second operand 3 states and 808 transitions. [2023-08-27 06:04:18,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 144 flow [2023-08-27 06:04:18,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 136 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 06:04:18,821 INFO L231 Difference]: Finished difference. Result has 34 places, 33 transitions, 74 flow [2023-08-27 06:04:18,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=34, PETRI_TRANSITIONS=33} [2023-08-27 06:04:18,829 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -9 predicate places. [2023-08-27 06:04:18,829 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 33 transitions, 74 flow [2023-08-27 06:04:18,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:18,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:04:18,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-27 06:04:18,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 06:04:18,831 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 06:04:18,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:04:18,831 INFO L85 PathProgramCache]: Analyzing trace with hash 39475, now seen corresponding path program 1 times [2023-08-27 06:04:18,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:04:18,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124998963] [2023-08-27 06:04:18,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:04:18,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:04:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:04:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:04:18,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:04:18,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124998963] [2023-08-27 06:04:18,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124998963] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:04:18,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:04:18,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:04:18,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321924515] [2023-08-27 06:04:18,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:04:18,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:04:18,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:04:18,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:04:18,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:04:18,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 667 [2023-08-27 06:04:18,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 33 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:18,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:04:18,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 667 [2023-08-27 06:04:18,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:04:19,047 INFO L124 PetriNetUnfolderBase]: 281/486 cut-off events. [2023-08-27 06:04:19,047 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 06:04:19,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 989 conditions, 486 events. 281/486 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2021 event pairs, 237 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 961. Up to 484 conditions per place. [2023-08-27 06:04:19,051 INFO L140 encePairwiseOnDemand]: 660/667 looper letters, 32 selfloop transitions, 5 changer transitions 0/37 dead transitions. [2023-08-27 06:04:19,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 158 flow [2023-08-27 06:04:19,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:04:19,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:04:19,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 807 transitions. [2023-08-27 06:04:19,054 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4032983508245877 [2023-08-27 06:04:19,054 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 807 transitions. [2023-08-27 06:04:19,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 807 transitions. [2023-08-27 06:04:19,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:04:19,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 807 transitions. [2023-08-27 06:04:19,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:19,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:19,064 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:19,064 INFO L175 Difference]: Start difference. First operand has 34 places, 33 transitions, 74 flow. Second operand 3 states and 807 transitions. [2023-08-27 06:04:19,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 158 flow [2023-08-27 06:04:19,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 06:04:19,065 INFO L231 Difference]: Finished difference. Result has 36 places, 37 transitions, 110 flow [2023-08-27 06:04:19,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=36, PETRI_TRANSITIONS=37} [2023-08-27 06:04:19,066 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -7 predicate places. [2023-08-27 06:04:19,066 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 110 flow [2023-08-27 06:04:19,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:19,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:04:19,068 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:04:19,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 06:04:19,068 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 06:04:19,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:04:19,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1226496, now seen corresponding path program 1 times [2023-08-27 06:04:19,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:04:19,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638027251] [2023-08-27 06:04:19,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:04:19,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:04:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:04:19,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:04:19,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:04:19,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638027251] [2023-08-27 06:04:19,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638027251] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:04:19,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363120912] [2023-08-27 06:04:19,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:04:19,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:04:19,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:04:19,180 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) [2023-08-27 06:04:19,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-27 06:04:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:04:19,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 06:04:19,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:04:19,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:04:19,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:04:19,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:04:19,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363120912] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:04:19,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:04:19,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2023-08-27 06:04:19,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712310576] [2023-08-27 06:04:19,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:04:19,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 06:04:19,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:04:19,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 06:04:19,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-27 06:04:19,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 667 [2023-08-27 06:04:19,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:19,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:04:19,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 667 [2023-08-27 06:04:19,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:04:19,528 INFO L124 PetriNetUnfolderBase]: 287/498 cut-off events. [2023-08-27 06:04:19,528 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 06:04:19,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1042 conditions, 498 events. 287/498 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2054 event pairs, 237 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 961. Up to 487 conditions per place. [2023-08-27 06:04:19,531 INFO L140 encePairwiseOnDemand]: 660/667 looper letters, 32 selfloop transitions, 17 changer transitions 0/49 dead transitions. [2023-08-27 06:04:19,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 49 transitions, 262 flow [2023-08-27 06:04:19,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:04:19,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:04:19,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1591 transitions. [2023-08-27 06:04:19,536 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3975512243878061 [2023-08-27 06:04:19,536 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1591 transitions. [2023-08-27 06:04:19,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1591 transitions. [2023-08-27 06:04:19,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:04:19,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1591 transitions. [2023-08-27 06:04:19,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 265.1666666666667) internal successors, (1591), 6 states have internal predecessors, (1591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:19,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 667.0) internal successors, (4669), 7 states have internal predecessors, (4669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:19,549 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 667.0) internal successors, (4669), 7 states have internal predecessors, (4669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:19,550 INFO L175 Difference]: Start difference. First operand has 36 places, 37 transitions, 110 flow. Second operand 6 states and 1591 transitions. [2023-08-27 06:04:19,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 49 transitions, 262 flow [2023-08-27 06:04:19,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 246 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 06:04:19,553 INFO L231 Difference]: Finished difference. Result has 42 places, 49 transitions, 218 flow [2023-08-27 06:04:19,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=42, PETRI_TRANSITIONS=49} [2023-08-27 06:04:19,554 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2023-08-27 06:04:19,554 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 49 transitions, 218 flow [2023-08-27 06:04:19,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:19,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:04:19,555 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-08-27 06:04:19,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-27 06:04:19,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:04:19,761 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 06:04:19,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:04:19,762 INFO L85 PathProgramCache]: Analyzing trace with hash -2113411725, now seen corresponding path program 2 times [2023-08-27 06:04:19,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:04:19,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209300854] [2023-08-27 06:04:19,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:04:19,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:04:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:04:19,876 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:04:19,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:04:19,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209300854] [2023-08-27 06:04:19,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209300854] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:04:19,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731308888] [2023-08-27 06:04:19,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 06:04:19,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:04:19,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:04:19,878 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) [2023-08-27 06:04:19,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-27 06:04:19,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-27 06:04:19,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:04:19,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-27 06:04:19,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:04:19,980 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 06:04:19,980 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 06:04:19,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731308888] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:04:19,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 06:04:19,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-08-27 06:04:19,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031194325] [2023-08-27 06:04:19,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:04:19,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:04:19,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:04:19,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:04:19,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-27 06:04:19,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 667 [2023-08-27 06:04:19,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 49 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:19,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:04:19,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 667 [2023-08-27 06:04:19,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:04:20,088 INFO L124 PetriNetUnfolderBase]: 287/496 cut-off events. [2023-08-27 06:04:20,088 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-27 06:04:20,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1063 conditions, 496 events. 287/496 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2047 event pairs, 237 based on Foata normal form. 2/236 useless extension candidates. Maximal degree in co-relation 1010. Up to 496 conditions per place. [2023-08-27 06:04:20,091 INFO L140 encePairwiseOnDemand]: 664/667 looper letters, 46 selfloop transitions, 1 changer transitions 0/47 dead transitions. [2023-08-27 06:04:20,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 47 transitions, 292 flow [2023-08-27 06:04:20,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:04:20,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:04:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 807 transitions. [2023-08-27 06:04:20,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4032983508245877 [2023-08-27 06:04:20,094 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 807 transitions. [2023-08-27 06:04:20,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 807 transitions. [2023-08-27 06:04:20,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:04:20,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 807 transitions. [2023-08-27 06:04:20,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:20,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:20,101 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:20,101 INFO L175 Difference]: Start difference. First operand has 42 places, 49 transitions, 218 flow. Second operand 3 states and 807 transitions. [2023-08-27 06:04:20,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 47 transitions, 292 flow [2023-08-27 06:04:20,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 47 transitions, 234 flow, removed 12 selfloop flow, removed 5 redundant places. [2023-08-27 06:04:20,105 INFO L231 Difference]: Finished difference. Result has 37 places, 47 transitions, 142 flow [2023-08-27 06:04:20,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=37, PETRI_TRANSITIONS=47} [2023-08-27 06:04:20,107 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -6 predicate places. [2023-08-27 06:04:20,107 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 47 transitions, 142 flow [2023-08-27 06:04:20,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:20,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:04:20,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:04:20,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-27 06:04:20,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-27 06:04:20,316 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 06:04:20,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:04:20,317 INFO L85 PathProgramCache]: Analyzing trace with hash -511383935, now seen corresponding path program 1 times [2023-08-27 06:04:20,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:04:20,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278415733] [2023-08-27 06:04:20,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:04:20,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:04:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:04:20,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:04:20,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:04:20,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278415733] [2023-08-27 06:04:20,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278415733] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:04:20,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:04:20,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 06:04:20,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120449015] [2023-08-27 06:04:20,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:04:20,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:04:20,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:04:20,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:04:20,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:04:20,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 667 [2023-08-27 06:04:20,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 47 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:20,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:04:20,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 667 [2023-08-27 06:04:20,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:04:20,573 INFO L124 PetriNetUnfolderBase]: 485/838 cut-off events. [2023-08-27 06:04:20,573 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 06:04:20,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1720 conditions, 838 events. 485/838 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 4198 event pairs, 237 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 1712. Up to 497 conditions per place. [2023-08-27 06:04:20,577 INFO L140 encePairwiseOnDemand]: 663/667 looper letters, 67 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2023-08-27 06:04:20,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 69 transitions, 327 flow [2023-08-27 06:04:20,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:04:20,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:04:20,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 850 transitions. [2023-08-27 06:04:20,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42478760619690153 [2023-08-27 06:04:20,580 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 850 transitions. [2023-08-27 06:04:20,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 850 transitions. [2023-08-27 06:04:20,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:04:20,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 850 transitions. [2023-08-27 06:04:20,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 283.3333333333333) internal successors, (850), 3 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:20,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:20,587 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:20,587 INFO L175 Difference]: Start difference. First operand has 37 places, 47 transitions, 142 flow. Second operand 3 states and 850 transitions. [2023-08-27 06:04:20,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 69 transitions, 327 flow [2023-08-27 06:04:20,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 69 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:04:20,590 INFO L231 Difference]: Finished difference. Result has 39 places, 48 transitions, 155 flow [2023-08-27 06:04:20,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=155, PETRI_PLACES=39, PETRI_TRANSITIONS=48} [2023-08-27 06:04:20,593 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2023-08-27 06:04:20,593 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 48 transitions, 155 flow [2023-08-27 06:04:20,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:20,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:04:20,596 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:04:20,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 06:04:20,597 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 06:04:20,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:04:20,597 INFO L85 PathProgramCache]: Analyzing trace with hash -511384011, now seen corresponding path program 1 times [2023-08-27 06:04:20,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:04:20,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491696070] [2023-08-27 06:04:20,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:04:20,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:04:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:04:20,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:04:20,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:04:20,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491696070] [2023-08-27 06:04:20,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491696070] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:04:20,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:04:20,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 06:04:20,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355853178] [2023-08-27 06:04:20,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:04:20,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:04:20,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:04:20,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:04:20,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:04:20,651 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 667 [2023-08-27 06:04:20,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 48 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:20,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:04:20,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 667 [2023-08-27 06:04:20,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:04:20,790 INFO L124 PetriNetUnfolderBase]: 483/836 cut-off events. [2023-08-27 06:04:20,790 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2023-08-27 06:04:20,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1823 conditions, 836 events. 483/836 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3978 event pairs, 419 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 1814. Up to 832 conditions per place. [2023-08-27 06:04:20,795 INFO L140 encePairwiseOnDemand]: 662/667 looper letters, 39 selfloop transitions, 7 changer transitions 0/46 dead transitions. [2023-08-27 06:04:20,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 239 flow [2023-08-27 06:04:20,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:04:20,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:04:20,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 779 transitions. [2023-08-27 06:04:20,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3893053473263368 [2023-08-27 06:04:20,797 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 779 transitions. [2023-08-27 06:04:20,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 779 transitions. [2023-08-27 06:04:20,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:04:20,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 779 transitions. [2023-08-27 06:04:20,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:20,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:20,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:20,803 INFO L175 Difference]: Start difference. First operand has 39 places, 48 transitions, 155 flow. Second operand 3 states and 779 transitions. [2023-08-27 06:04:20,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 239 flow [2023-08-27 06:04:20,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 46 transitions, 237 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:04:20,805 INFO L231 Difference]: Finished difference. Result has 40 places, 46 transitions, 159 flow [2023-08-27 06:04:20,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=40, PETRI_TRANSITIONS=46} [2023-08-27 06:04:20,806 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2023-08-27 06:04:20,806 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 46 transitions, 159 flow [2023-08-27 06:04:20,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:20,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:04:20,806 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:04:20,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 06:04:20,807 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 06:04:20,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:04:20,807 INFO L85 PathProgramCache]: Analyzing trace with hash 973669750, now seen corresponding path program 1 times [2023-08-27 06:04:20,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:04:20,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000772223] [2023-08-27 06:04:20,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:04:20,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:04:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:04:20,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:04:20,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:04:20,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000772223] [2023-08-27 06:04:20,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000772223] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:04:20,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726737240] [2023-08-27 06:04:20,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:04:20,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:04:20,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:04:20,853 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) [2023-08-27 06:04:20,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-27 06:04:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:04:20,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-27 06:04:20,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:04:20,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:04:20,981 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:04:20,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:04:20,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726737240] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:04:20,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:04:20,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-27 06:04:20,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807327020] [2023-08-27 06:04:20,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:04:20,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 06:04:21,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:04:21,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 06:04:21,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-27 06:04:21,003 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 667 [2023-08-27 06:04:21,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 46 transitions, 159 flow. Second operand has 8 states, 8 states have (on average 249.875) internal successors, (1999), 8 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:21,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:04:21,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 667 [2023-08-27 06:04:21,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:04:21,187 INFO L124 PetriNetUnfolderBase]: 477/830 cut-off events. [2023-08-27 06:04:21,187 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-08-27 06:04:21,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1791 conditions, 830 events. 477/830 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3959 event pairs, 419 based on Foata normal form. 3/424 useless extension candidates. Maximal degree in co-relation 1781. Up to 823 conditions per place. [2023-08-27 06:04:21,191 INFO L140 encePairwiseOnDemand]: 662/667 looper letters, 30 selfloop transitions, 10 changer transitions 0/40 dead transitions. [2023-08-27 06:04:21,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 40 transitions, 209 flow [2023-08-27 06:04:21,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:04:21,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:04:21,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1533 transitions. [2023-08-27 06:04:21,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3830584707646177 [2023-08-27 06:04:21,197 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1533 transitions. [2023-08-27 06:04:21,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1533 transitions. [2023-08-27 06:04:21,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:04:21,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1533 transitions. [2023-08-27 06:04:21,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 255.5) internal successors, (1533), 6 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) [2023-08-27 06:04:21,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 667.0) internal successors, (4669), 7 states have internal predecessors, (4669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:21,207 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 667.0) internal successors, (4669), 7 states have internal predecessors, (4669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:21,207 INFO L175 Difference]: Start difference. First operand has 40 places, 46 transitions, 159 flow. Second operand 6 states and 1533 transitions. [2023-08-27 06:04:21,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 40 transitions, 209 flow [2023-08-27 06:04:21,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 40 transitions, 201 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 06:04:21,211 INFO L231 Difference]: Finished difference. Result has 43 places, 40 transitions, 141 flow [2023-08-27 06:04:21,211 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=141, PETRI_PLACES=43, PETRI_TRANSITIONS=40} [2023-08-27 06:04:21,212 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2023-08-27 06:04:21,212 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 40 transitions, 141 flow [2023-08-27 06:04:21,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 249.875) internal successors, (1999), 8 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:21,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:04:21,213 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:04:21,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-27 06:04:21,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:04:21,419 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 06:04:21,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:04:21,420 INFO L85 PathProgramCache]: Analyzing trace with hash 265990133, now seen corresponding path program 2 times [2023-08-27 06:04:21,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:04:21,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175509680] [2023-08-27 06:04:21,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:04:21,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:04:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:04:21,514 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 06:04:21,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:04:21,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175509680] [2023-08-27 06:04:21,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175509680] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:04:21,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946245699] [2023-08-27 06:04:21,515 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 06:04:21,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:04:21,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:04:21,517 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) [2023-08-27 06:04:21,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-27 06:04:21,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-27 06:04:21,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:04:21,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-27 06:04:21,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:04:21,689 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 06:04:21,689 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:04:21,721 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 06:04:21,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946245699] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:04:21,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:04:21,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-08-27 06:04:21,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76518608] [2023-08-27 06:04:21,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:04:21,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-27 06:04:21,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:04:21,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-27 06:04:21,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-08-27 06:04:21,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 667 [2023-08-27 06:04:21,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 141 flow. Second operand has 12 states, 12 states have (on average 249.5) internal successors, (2994), 12 states have internal predecessors, (2994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:21,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:04:21,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 667 [2023-08-27 06:04:21,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:04:21,895 INFO L124 PetriNetUnfolderBase]: 477/832 cut-off events. [2023-08-27 06:04:21,895 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-08-27 06:04:21,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1803 conditions, 832 events. 477/832 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3958 event pairs, 419 based on Foata normal form. 1/424 useless extension candidates. Maximal degree in co-relation 1793. Up to 823 conditions per place. [2023-08-27 06:04:21,900 INFO L140 encePairwiseOnDemand]: 662/667 looper letters, 30 selfloop transitions, 12 changer transitions 0/42 dead transitions. [2023-08-27 06:04:21,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 42 transitions, 233 flow [2023-08-27 06:04:21,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 06:04:21,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 06:04:21,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1779 transitions. [2023-08-27 06:04:21,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.381023773827372 [2023-08-27 06:04:21,905 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1779 transitions. [2023-08-27 06:04:21,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1779 transitions. [2023-08-27 06:04:21,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:04:21,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1779 transitions. [2023-08-27 06:04:21,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 254.14285714285714) internal successors, (1779), 7 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:21,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 667.0) internal successors, (5336), 8 states have internal predecessors, (5336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:21,915 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 667.0) internal successors, (5336), 8 states have internal predecessors, (5336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:21,916 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 141 flow. Second operand 7 states and 1779 transitions. [2023-08-27 06:04:21,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 42 transitions, 233 flow [2023-08-27 06:04:21,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 42 transitions, 213 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-27 06:04:21,917 INFO L231 Difference]: Finished difference. Result has 45 places, 42 transitions, 163 flow [2023-08-27 06:04:21,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=163, PETRI_PLACES=45, PETRI_TRANSITIONS=42} [2023-08-27 06:04:21,919 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2023-08-27 06:04:21,919 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 163 flow [2023-08-27 06:04:21,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 249.5) internal successors, (2994), 12 states have internal predecessors, (2994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:21,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:04:21,921 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:04:21,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-27 06:04:22,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:04:22,129 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 06:04:22,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:04:22,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1914235210, now seen corresponding path program 3 times [2023-08-27 06:04:22,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:04:22,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150647256] [2023-08-27 06:04:22,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:04:22,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:04:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:04:22,981 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-08-27 06:04:22,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:04:22,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150647256] [2023-08-27 06:04:22,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150647256] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:04:22,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3271356] [2023-08-27 06:04:22,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-27 06:04:22,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:04:22,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:04:22,985 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) [2023-08-27 06:04:23,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-27 06:04:23,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-08-27 06:04:23,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:04:23,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 40 conjunts are in the unsatisfiable core [2023-08-27 06:04:23,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:04:23,183 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-27 06:04:23,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:04:23,222 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-27 06:04:23,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:04:23,259 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-27 06:04:23,301 INFO L322 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-27 06:04:23,301 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 24 [2023-08-27 06:04:23,361 INFO L322 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-27 06:04:23,361 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2023-08-27 06:04:23,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:04:23,415 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:04:23,432 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-08-27 06:04:23,432 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:04:34,838 INFO L322 Elim1Store]: treesize reduction 212, result has 30.5 percent of original size [2023-08-27 06:04:34,838 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 103 [2023-08-27 06:04:34,919 INFO L322 Elim1Store]: treesize reduction 24, result has 70.4 percent of original size [2023-08-27 06:04:34,920 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 102 treesize of output 122 [2023-08-27 06:04:35,028 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-08-27 06:04:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-08-27 06:04:35,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3271356] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:04:35,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:04:35,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2023-08-27 06:04:35,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105314065] [2023-08-27 06:04:35,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:04:35,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-08-27 06:04:35,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:04:35,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-08-27 06:04:35,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=498, Unknown=11, NotChecked=0, Total=650 [2023-08-27 06:04:35,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 667 [2023-08-27 06:04:35,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 163 flow. Second operand has 26 states, 26 states have (on average 222.26923076923077) internal successors, (5779), 26 states have internal predecessors, (5779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:35,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:04:35,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 667 [2023-08-27 06:04:35,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:04:35,846 INFO L124 PetriNetUnfolderBase]: 540/1030 cut-off events. [2023-08-27 06:04:35,846 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2023-08-27 06:04:35,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2215 conditions, 1030 events. 540/1030 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 5816 event pairs, 259 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 2204. Up to 662 conditions per place. [2023-08-27 06:04:35,852 INFO L140 encePairwiseOnDemand]: 653/667 looper letters, 48 selfloop transitions, 22 changer transitions 0/70 dead transitions. [2023-08-27 06:04:35,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 70 transitions, 370 flow [2023-08-27 06:04:35,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-27 06:04:35,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-27 06:04:35,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2274 transitions. [2023-08-27 06:04:35,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3409295352323838 [2023-08-27 06:04:35,859 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2274 transitions. [2023-08-27 06:04:35,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2274 transitions. [2023-08-27 06:04:35,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:04:35,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2274 transitions. [2023-08-27 06:04:35,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 227.4) internal successors, (2274), 10 states have internal predecessors, (2274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:35,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 667.0) internal successors, (7337), 11 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:35,883 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 667.0) internal successors, (7337), 11 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:35,883 INFO L175 Difference]: Start difference. First operand has 45 places, 42 transitions, 163 flow. Second operand 10 states and 2274 transitions. [2023-08-27 06:04:35,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 70 transitions, 370 flow [2023-08-27 06:04:35,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 70 transitions, 350 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-27 06:04:35,887 INFO L231 Difference]: Finished difference. Result has 52 places, 54 transitions, 243 flow [2023-08-27 06:04:35,887 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=243, PETRI_PLACES=52, PETRI_TRANSITIONS=54} [2023-08-27 06:04:35,887 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2023-08-27 06:04:35,888 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 54 transitions, 243 flow [2023-08-27 06:04:35,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 222.26923076923077) internal successors, (5779), 26 states have internal predecessors, (5779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:04:35,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:04:35,889 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:04:35,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-27 06:04:36,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:04:36,100 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 06:04:36,100 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:04:36,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1914235135, now seen corresponding path program 1 times [2023-08-27 06:04:36,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:04:36,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753443302] [2023-08-27 06:04:36,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:04:36,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:04:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:04:37,009 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 06:04:37,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:04:37,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753443302] [2023-08-27 06:04:37,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753443302] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:04:37,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777876883] [2023-08-27 06:04:37,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:04:37,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:04:37,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:04:37,013 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) [2023-08-27 06:04:37,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-27 06:04:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:04:37,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 64 conjunts are in the unsatisfiable core [2023-08-27 06:04:37,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:04:37,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:04:37,172 INFO L322 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2023-08-27 06:04:37,172 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 24 [2023-08-27 06:04:37,205 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-27 06:04:37,238 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-27 06:04:37,276 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-27 06:04:37,317 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-27 06:04:37,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:04:37,361 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-27 06:04:37,409 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-27 06:04:37,409 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-27 06:04:37,448 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:04:37,494 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:04:37,538 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:04:37,578 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:04:37,592 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:04:37,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:04:37,624 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:04:37,710 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:04:37,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:04:38,009 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_366 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_366))) (let ((.cse1 (select (select .cse0 ~o_2~0.base) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (< (select (select .cse0 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse1 2147483648)) (< 9223372039002259455 .cse1) (<= .cse1 0))))) (forall ((v_ArrVal_366 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_366))) (let ((.cse3 (select (select .cse2 ~o_2~0.base) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (< (select (select .cse2 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse3 2147483648)) (< .cse3 0) (< 0 .cse3)))))) is different from false [2023-08-27 06:04:38,040 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_366 (Array Int Int)) (v_ArrVal_365 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_365) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_366))) (let ((.cse0 (select (select .cse1 ~o_2~0.base) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (< .cse0 0) (< 0 .cse0) (< (select (select .cse1 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse0 2147483648)))))) (forall ((v_ArrVal_366 (Array Int Int)) (v_ArrVal_365 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_365) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_366))) (let ((.cse2 (select (select .cse3 ~o_2~0.base) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (< 9223372039002259455 .cse2) (<= .cse2 0) (< (select (select .cse3 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse2 2147483648))))))) is different from false [2023-08-27 06:05:14,476 INFO L322 Elim1Store]: treesize reduction 146, result has 55.1 percent of original size [2023-08-27 06:05:14,476 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 471 treesize of output 315 [2023-08-27 06:05:14,527 INFO L322 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2023-08-27 06:05:14,528 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1658 treesize of output 1588 [2023-08-27 06:05:14,588 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:05:14,589 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 467 treesize of output 456 [2023-08-27 06:05:14,631 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:05:14,631 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 447 treesize of output 416 [2023-08-27 06:05:14,687 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:05:14,687 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1176 treesize of output 1154 [2023-08-27 06:05:14,799 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:05:14,800 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 747 treesize of output 736 [2023-08-27 06:05:14,868 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:05:14,869 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 727 treesize of output 696 [2023-08-27 06:05:56,462 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 127 [2023-08-27 06:05:59,336 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1124 treesize of output 1080 [2023-08-27 06:06:10,821 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 454 treesize of output 428 [2023-08-27 06:06:15,906 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:06:15,908 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 7389 treesize of output 6869 [2023-08-27 06:06:47,956 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:06:47,957 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1961 treesize of output 1935 [2023-08-27 06:07:08,998 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:07:09,001 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 5392 treesize of output 5235 [2023-08-27 06:10:19,124 INFO L322 Elim1Store]: treesize reduction 10, result has 65.5 percent of original size [2023-08-27 06:10:19,125 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 247 treesize of output 225 [2023-08-27 06:10:19,991 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:10:19,998 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 18632 treesize of output 18327 [2023-08-27 06:10:20,681 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:10:20,688 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18298 treesize of output 18229 Received shutdown request... [2023-08-27 06:17:17,393 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2023-08-27 06:17:17,396 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-27 06:17:17,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-27 06:17:17,405 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-27 06:17:17,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:17:17,601 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. [2023-08-27 06:17:17,602 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2023-08-27 06:17:17,603 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2023-08-27 06:17:17,603 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2023-08-27 06:17:17,603 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2023-08-27 06:17:17,603 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2023-08-27 06:17:17,603 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2023-08-27 06:17:17,603 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2023-08-27 06:17:17,604 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2023-08-27 06:17:17,604 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2023-08-27 06:17:17,604 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2023-08-27 06:17:17,604 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2023-08-27 06:17:17,604 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2023-08-27 06:17:17,604 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2023-08-27 06:17:17,605 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2023-08-27 06:17:17,605 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2023-08-27 06:17:17,605 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2023-08-27 06:17:17,605 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2023-08-27 06:17:17,605 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 39 remaining) [2023-08-27 06:17:17,605 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 39 remaining) [2023-08-27 06:17:17,606 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 39 remaining) [2023-08-27 06:17:17,606 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONASSERT (17 of 39 remaining) [2023-08-27 06:17:17,606 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 39 remaining) [2023-08-27 06:17:17,606 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 39 remaining) [2023-08-27 06:17:17,606 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2023-08-27 06:17:17,606 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2023-08-27 06:17:17,607 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2023-08-27 06:17:17,607 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2023-08-27 06:17:17,607 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2023-08-27 06:17:17,607 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2023-08-27 06:17:17,607 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2023-08-27 06:17:17,607 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2023-08-27 06:17:17,608 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2023-08-27 06:17:17,608 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2023-08-27 06:17:17,608 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2023-08-27 06:17:17,608 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2023-08-27 06:17:17,608 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2023-08-27 06:17:17,608 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2023-08-27 06:17:17,609 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2023-08-27 06:17:17,609 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2023-08-27 06:17:17,619 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 06:17:17,619 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 06:17:17,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:17:17 BasicIcfg [2023-08-27 06:17:17,624 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 06:17:17,626 INFO L158 Benchmark]: Toolchain (without parser) took 795030.50ms. Allocated memory was 331.4MB in the beginning and 859.8MB in the end (delta: 528.5MB). Free memory was 307.2MB in the beginning and 608.0MB in the end (delta: -300.8MB). Peak memory consumption was 551.0MB. Max. memory is 16.0GB. [2023-08-27 06:17:17,627 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 331.4MB. Free memory was 308.8MB in the beginning and 308.6MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 06:17:17,627 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.90ms. Allocated memory is still 331.4MB. Free memory was 307.2MB in the beginning and 295.7MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 06:17:17,627 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.96ms. Allocated memory is still 331.4MB. Free memory was 294.9MB in the beginning and 292.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 06:17:17,628 INFO L158 Benchmark]: Boogie Preprocessor took 41.04ms. Allocated memory is still 331.4MB. Free memory was 292.8MB in the beginning and 290.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 06:17:17,628 INFO L158 Benchmark]: RCFGBuilder took 569.66ms. Allocated memory is still 331.4MB. Free memory was 290.7MB in the beginning and 267.2MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-27 06:17:17,629 INFO L158 Benchmark]: TraceAbstraction took 794116.08ms. Allocated memory was 331.4MB in the beginning and 859.8MB in the end (delta: 528.5MB). Free memory was 266.4MB in the beginning and 608.0MB in the end (delta: -341.6MB). Peak memory consumption was 509.1MB. Max. memory is 16.0GB. [2023-08-27 06:17:17,630 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 331.4MB. Free memory was 308.8MB in the beginning and 308.6MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 248.90ms. Allocated memory is still 331.4MB. Free memory was 307.2MB in the beginning and 295.7MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.96ms. Allocated memory is still 331.4MB. Free memory was 294.9MB in the beginning and 292.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 41.04ms. Allocated memory is still 331.4MB. Free memory was 292.8MB in the beginning and 290.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 569.66ms. Allocated memory is still 331.4MB. Free memory was 290.7MB in the beginning and 267.2MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 794116.08ms. Allocated memory was 331.4MB in the beginning and 859.8MB in the end (delta: 528.5MB). Free memory was 266.4MB in the beginning and 608.0MB in the end (delta: -341.6MB). Peak memory consumption was 509.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.4s, 265 PlacesBefore, 43 PlacesAfterwards, 283 TransitionsBefore, 40 TransitionsAfterwards, 12212 CoEnabledTransitionPairs, 8 FixpointIterations, 119 TrivialSequentialCompositions, 179 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 23 ConcurrentYvCompositions, 21 ChoiceCompositions, 373 TotalNumberOfCompositions, 13295 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12388, independent: 12311, independent conditional: 0, independent unconditional: 12311, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6805, independent: 6787, independent conditional: 0, independent unconditional: 6787, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12388, independent: 5524, independent conditional: 0, independent unconditional: 5524, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 6805, unknown conditional: 0, unknown unconditional: 6805] , Statistics on independence cache: Total cache size (in pairs): 153, Positive cache size: 145, Positive conditional cache size: 0, Positive unconditional cache size: 145, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-6-2-4-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 402 locations, 39 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: 793.9s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 14.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1172 IncrementalHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 0 mSDtfsCounter, 1172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 56 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 11.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=243occurred in iteration=9, InterpolantAutomatonStates: 44, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 13.5s InterpolantComputationTime, 118 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 144 ConstructedInterpolants, 5 QuantifiedInterpolants, 911 SizeOfPredicates, 13 NumberOfNonLiveVariables, 894 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 18 InterpolantComputations, 5 PerfectInterpolantSequences, 89/179 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown