/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-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 06:02:14,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 06:02:14,965 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 06:02:14,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 06:02:14,970 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 06:02:15,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 06:02:15,004 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 06:02:15,004 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 06:02:15,005 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 06:02:15,009 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 06:02:15,009 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 06:02:15,009 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 06:02:15,010 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 06:02:15,011 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 06:02:15,011 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 06:02:15,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 06:02:15,012 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 06:02:15,012 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 06:02:15,012 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 06:02:15,012 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 06:02:15,012 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 06:02:15,013 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 06:02:15,014 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 06:02:15,014 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 06:02:15,015 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 06:02:15,015 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 06:02:15,015 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 06:02:15,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:02:15,016 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 06:02:15,016 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 06:02:15,016 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 06:02:15,016 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 06:02:15,017 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 06:02:15,017 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 06:02:15,017 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 06:02:15,018 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 06:02:15,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 06:02:15,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 06:02:15,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 06:02:15,409 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 06:02:15,409 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 06:02:15,411 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c [2023-08-27 06:02:16,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 06:02:16,953 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 06:02:16,953 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c [2023-08-27 06:02:16,963 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be7bfa407/3da730ba76514998985f679fef1448fe/FLAG517269604 [2023-08-27 06:02:16,980 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be7bfa407/3da730ba76514998985f679fef1448fe [2023-08-27 06:02:16,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 06:02:16,986 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 06:02:16,989 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 06:02:16,989 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 06:02:16,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 06:02:16,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:02:16" (1/1) ... [2023-08-27 06:02:16,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca9c761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:16, skipping insertion in model container [2023-08-27 06:02:16,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:02:16" (1/1) ... [2023-08-27 06:02:17,024 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 06:02:17,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:02:17,256 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 06:02:17,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:02:17,320 INFO L206 MainTranslator]: Completed translation [2023-08-27 06:02:17,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:17 WrapperNode [2023-08-27 06:02:17,321 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 06:02:17,322 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 06:02:17,322 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 06:02:17,322 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 06:02:17,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:17" (1/1) ... [2023-08-27 06:02:17,346 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:17" (1/1) ... [2023-08-27 06:02:17,379 INFO L138 Inliner]: procedures = 26, calls = 48, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 340 [2023-08-27 06:02:17,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 06:02:17,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 06:02:17,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 06:02:17,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 06:02:17,393 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:17" (1/1) ... [2023-08-27 06:02:17,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:17" (1/1) ... [2023-08-27 06:02:17,404 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:17" (1/1) ... [2023-08-27 06:02:17,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:17" (1/1) ... [2023-08-27 06:02:17,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:17" (1/1) ... [2023-08-27 06:02:17,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:17" (1/1) ... [2023-08-27 06:02:17,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:17" (1/1) ... [2023-08-27 06:02:17,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:17" (1/1) ... [2023-08-27 06:02:17,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 06:02:17,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 06:02:17,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 06:02:17,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 06:02:17,445 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:17" (1/1) ... [2023-08-27 06:02:17,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:02:17,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:02:17,473 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 06:02:17,475 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 06:02:17,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 06:02:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 06:02:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 06:02:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 06:02:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 06:02:17,499 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 06:02:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 06:02:17,499 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 06:02:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-27 06:02:17,500 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-27 06:02:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 06:02:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-27 06:02:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 06:02:17,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 06:02:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 06:02:17,502 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 06:02:17,608 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 06:02:17,610 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 06:02:18,142 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 06:02:18,154 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 06:02:18,155 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-27 06:02:18,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:02:18 BoogieIcfgContainer [2023-08-27 06:02:18,157 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 06:02:18,159 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 06:02:18,159 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 06:02:18,162 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 06:02:18,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:02:16" (1/3) ... [2023-08-27 06:02:18,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e64c28a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:02:18, skipping insertion in model container [2023-08-27 06:02:18,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:17" (2/3) ... [2023-08-27 06:02:18,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e64c28a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:02:18, skipping insertion in model container [2023-08-27 06:02:18,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:02:18" (3/3) ... [2023-08-27 06:02:18,165 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-subst.wvr.c [2023-08-27 06:02:18,209 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 06:02:18,209 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2023-08-27 06:02:18,209 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 06:02:18,345 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-27 06:02:18,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 393 places, 418 transitions, 860 flow [2023-08-27 06:02:18,507 INFO L124 PetriNetUnfolderBase]: 35/415 cut-off events. [2023-08-27 06:02:18,507 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 06:02:18,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 415 events. 35/415 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 878 event pairs, 0 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 311. Up to 2 conditions per place. [2023-08-27 06:02:18,525 INFO L82 GeneralOperation]: Start removeDead. Operand has 393 places, 418 transitions, 860 flow [2023-08-27 06:02:18,534 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 379 places, 404 transitions, 826 flow [2023-08-27 06:02:18,537 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 06:02:18,545 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 379 places, 404 transitions, 826 flow [2023-08-27 06:02:18,553 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 379 places, 404 transitions, 826 flow [2023-08-27 06:02:18,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 379 places, 404 transitions, 826 flow [2023-08-27 06:02:18,667 INFO L124 PetriNetUnfolderBase]: 35/404 cut-off events. [2023-08-27 06:02:18,668 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 06:02:18,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 404 events. 35/404 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 878 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 311. Up to 2 conditions per place. [2023-08-27 06:02:18,689 INFO L119 LiptonReduction]: Number of co-enabled transitions 35358 [2023-08-27 06:02:39,822 INFO L134 LiptonReduction]: Checked pairs total: 38762 [2023-08-27 06:02:39,822 INFO L136 LiptonReduction]: Total number of compositions: 513 [2023-08-27 06:02:39,833 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 06:02:39,838 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;@5c9226e8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 06:02:39,838 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-08-27 06:02:39,841 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 06:02:39,841 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-08-27 06:02:39,841 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:02:39,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:02:39,841 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-27 06:02:39,842 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-27 06:02:39,846 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:02:39,846 INFO L85 PathProgramCache]: Analyzing trace with hash 55323, now seen corresponding path program 1 times [2023-08-27 06:02:39,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:02:39,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673038533] [2023-08-27 06:02:39,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:02:39,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:02:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:02:40,089 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 06:02:40,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:02:40,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673038533] [2023-08-27 06:02:40,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673038533] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:02:40,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:02:40,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:02:40,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073035484] [2023-08-27 06:02:40,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:02:40,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:02:40,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:02:40,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:02:40,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:02:40,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 364 out of 931 [2023-08-27 06:02:40,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 364.6666666666667) internal successors, (1094), 3 states have internal predecessors, (1094), 0 states have call successors, (0), 0 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 06:02:40,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:02:40,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 364 of 931 [2023-08-27 06:02:40,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:02:41,204 INFO L124 PetriNetUnfolderBase]: 4763/6774 cut-off events. [2023-08-27 06:02:41,204 INFO L125 PetriNetUnfolderBase]: For 331/331 co-relation queries the response was YES. [2023-08-27 06:02:41,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13864 conditions, 6774 events. 4763/6774 cut-off events. For 331/331 co-relation queries the response was YES. Maximal size of possible extension queue 521. Compared 34245 event pairs, 4157 based on Foata normal form. 0/2784 useless extension candidates. Maximal degree in co-relation 12700. Up to 6770 conditions per place. [2023-08-27 06:02:41,248 INFO L140 encePairwiseOnDemand]: 911/931 looper letters, 52 selfloop transitions, 7 changer transitions 0/59 dead transitions. [2023-08-27 06:02:41,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 59 transitions, 254 flow [2023-08-27 06:02:41,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:02:41,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:02:41,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1164 transitions. [2023-08-27 06:02:41,267 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4167561761546724 [2023-08-27 06:02:41,267 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1164 transitions. [2023-08-27 06:02:41,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1164 transitions. [2023-08-27 06:02:41,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:02:41,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1164 transitions. [2023-08-27 06:02:41,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 388.0) internal successors, (1164), 3 states have internal predecessors, (1164), 0 states have call successors, (0), 0 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 06:02:41,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 931.0) internal successors, (3724), 4 states have internal predecessors, (3724), 0 states have call successors, (0), 0 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 06:02:41,286 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 931.0) internal successors, (3724), 4 states have internal predecessors, (3724), 0 states have call successors, (0), 0 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 06:02:41,288 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 138 flow. Second operand 3 states and 1164 transitions. [2023-08-27 06:02:41,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 59 transitions, 254 flow [2023-08-27 06:02:41,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 242 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-27 06:02:41,312 INFO L231 Difference]: Finished difference. Result has 55 places, 59 transitions, 176 flow [2023-08-27 06:02:41,313 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=931, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=55, PETRI_TRANSITIONS=59} [2023-08-27 06:02:41,316 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -9 predicate places. [2023-08-27 06:02:41,316 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 59 transitions, 176 flow [2023-08-27 06:02:41,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 364.6666666666667) internal successors, (1094), 3 states have internal predecessors, (1094), 0 states have call successors, (0), 0 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 06:02:41,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:02:41,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:02:41,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 06:02:41,318 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-27 06:02:41,318 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:02:41,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1719807, now seen corresponding path program 1 times [2023-08-27 06:02:41,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:02:41,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839015779] [2023-08-27 06:02:41,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:02:41,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:02:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:02:41,408 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 06:02:41,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:02:41,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839015779] [2023-08-27 06:02:41,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839015779] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:02:41,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692739378] [2023-08-27 06:02:41,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:02:41,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:02:41,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:02:41,417 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 06:02:41,453 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 06:02:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:02:41,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 06:02:41,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:02:41,605 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 06:02:41,606 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:02:41,658 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 06:02:41,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692739378] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:02:41,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:02:41,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-27 06:02:41,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226998295] [2023-08-27 06:02:41,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:02:41,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 06:02:41,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:02:41,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 06:02:41,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-27 06:02:41,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 364 out of 931 [2023-08-27 06:02:41,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 59 transitions, 176 flow. Second operand has 7 states, 7 states have (on average 365.14285714285717) internal successors, (2556), 7 states have internal predecessors, (2556), 0 states have call successors, (0), 0 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 06:02:41,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:02:41,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 364 of 931 [2023-08-27 06:02:41,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:02:42,716 INFO L124 PetriNetUnfolderBase]: 4781/6801 cut-off events. [2023-08-27 06:02:42,716 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-27 06:02:42,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13776 conditions, 6801 events. 4781/6801 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 521. Compared 34311 event pairs, 4157 based on Foata normal form. 0/2803 useless extension candidates. Maximal degree in co-relation 13621. Up to 6770 conditions per place. [2023-08-27 06:02:42,755 INFO L140 encePairwiseOnDemand]: 918/931 looper letters, 49 selfloop transitions, 37 changer transitions 0/86 dead transitions. [2023-08-27 06:02:42,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 86 transitions, 468 flow [2023-08-27 06:02:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 06:02:42,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 06:02:42,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2643 transitions. [2023-08-27 06:02:42,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40555470308424124 [2023-08-27 06:02:42,762 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2643 transitions. [2023-08-27 06:02:42,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2643 transitions. [2023-08-27 06:02:42,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:02:42,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2643 transitions. [2023-08-27 06:02:42,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 377.57142857142856) internal successors, (2643), 7 states have internal predecessors, (2643), 0 states have call successors, (0), 0 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 06:02:42,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 931.0) internal successors, (7448), 8 states have internal predecessors, (7448), 0 states have call successors, (0), 0 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 06:02:42,786 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 931.0) internal successors, (7448), 8 states have internal predecessors, (7448), 0 states have call successors, (0), 0 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 06:02:42,786 INFO L175 Difference]: Start difference. First operand has 55 places, 59 transitions, 176 flow. Second operand 7 states and 2643 transitions. [2023-08-27 06:02:42,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 86 transitions, 468 flow [2023-08-27 06:02:42,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 86 transitions, 442 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 06:02:42,794 INFO L231 Difference]: Finished difference. Result has 62 places, 86 transitions, 406 flow [2023-08-27 06:02:42,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=931, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=406, PETRI_PLACES=62, PETRI_TRANSITIONS=86} [2023-08-27 06:02:42,795 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -2 predicate places. [2023-08-27 06:02:42,795 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 86 transitions, 406 flow [2023-08-27 06:02:42,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 365.14285714285717) internal successors, (2556), 7 states have internal predecessors, (2556), 0 states have call successors, (0), 0 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 06:02:42,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:02:42,797 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1] [2023-08-27 06:02:42,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-27 06:02:43,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:02:43,002 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-27 06:02:43,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:02:43,002 INFO L85 PathProgramCache]: Analyzing trace with hash 53317787, now seen corresponding path program 1 times [2023-08-27 06:02:43,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:02:43,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109904812] [2023-08-27 06:02:43,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:02:43,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:02:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:02:43,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:02:43,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:02:43,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109904812] [2023-08-27 06:02:43,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109904812] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:02:43,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:02:43,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 06:02:43,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216371811] [2023-08-27 06:02:43,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:02:43,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:02:43,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:02:43,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:02:43,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:02:43,090 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 364 out of 931 [2023-08-27 06:02:43,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 86 transitions, 406 flow. Second operand has 3 states, 3 states have (on average 365.3333333333333) internal successors, (1096), 3 states have internal predecessors, (1096), 0 states have call successors, (0), 0 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 06:02:43,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:02:43,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 364 of 931 [2023-08-27 06:02:43,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:02:44,040 INFO L124 PetriNetUnfolderBase]: 4772/6789 cut-off events. [2023-08-27 06:02:44,040 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-27 06:02:44,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13786 conditions, 6789 events. 4772/6789 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 34523 event pairs, 4157 based on Foata normal form. 0/2805 useless extension candidates. Maximal degree in co-relation 13692. Up to 6761 conditions per place. [2023-08-27 06:02:44,075 INFO L140 encePairwiseOnDemand]: 926/931 looper letters, 68 selfloop transitions, 6 changer transitions 0/74 dead transitions. [2023-08-27 06:02:44,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 74 transitions, 473 flow [2023-08-27 06:02:44,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:02:44,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:02:44,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1145 transitions. [2023-08-27 06:02:44,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40995345506623704 [2023-08-27 06:02:44,079 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1145 transitions. [2023-08-27 06:02:44,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1145 transitions. [2023-08-27 06:02:44,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:02:44,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1145 transitions. [2023-08-27 06:02:44,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 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 06:02:44,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 931.0) internal successors, (3724), 4 states have internal predecessors, (3724), 0 states have call successors, (0), 0 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 06:02:44,088 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 931.0) internal successors, (3724), 4 states have internal predecessors, (3724), 0 states have call successors, (0), 0 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 06:02:44,089 INFO L175 Difference]: Start difference. First operand has 62 places, 86 transitions, 406 flow. Second operand 3 states and 1145 transitions. [2023-08-27 06:02:44,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 74 transitions, 473 flow [2023-08-27 06:02:44,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 74 transitions, 436 flow, removed 12 selfloop flow, removed 1 redundant places. [2023-08-27 06:02:44,094 INFO L231 Difference]: Finished difference. Result has 59 places, 74 transitions, 300 flow [2023-08-27 06:02:44,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=931, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=59, PETRI_TRANSITIONS=74} [2023-08-27 06:02:44,096 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -5 predicate places. [2023-08-27 06:02:44,096 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 74 transitions, 300 flow [2023-08-27 06:02:44,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 365.3333333333333) internal successors, (1096), 3 states have internal predecessors, (1096), 0 states have call successors, (0), 0 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 06:02:44,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:02:44,097 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-08-27 06:02:44,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 06:02:44,098 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-27 06:02:44,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:02:44,099 INFO L85 PathProgramCache]: Analyzing trace with hash -301061829, now seen corresponding path program 2 times [2023-08-27 06:02:44,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:02:44,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4550669] [2023-08-27 06:02:44,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:02:44,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:02:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:02:44,257 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 06:02:44,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:02:44,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4550669] [2023-08-27 06:02:44,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4550669] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:02:44,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947834431] [2023-08-27 06:02:44,258 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 06:02:44,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:02:44,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:02:44,259 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 06:02:44,287 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 06:02:44,361 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-27 06:02:44,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:02:44,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-27 06:02:44,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:02:44,375 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 06:02:44,375 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 06:02:44,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947834431] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:02:44,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 06:02:44,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-08-27 06:02:44,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861026843] [2023-08-27 06:02:44,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:02:44,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:02:44,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:02:44,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:02:44,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-27 06:02:44,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 931 [2023-08-27 06:02:44,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 74 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 0 states have call successors, (0), 0 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 06:02:44,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:02:44,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 931 [2023-08-27 06:02:44,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:02:45,213 INFO L124 PetriNetUnfolderBase]: 4772/6786 cut-off events. [2023-08-27 06:02:45,214 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2023-08-27 06:02:45,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13754 conditions, 6786 events. 4772/6786 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 34509 event pairs, 4157 based on Foata normal form. 3/2809 useless extension candidates. Maximal degree in co-relation 13686. Up to 6786 conditions per place. [2023-08-27 06:02:45,249 INFO L140 encePairwiseOnDemand]: 927/931 looper letters, 70 selfloop transitions, 1 changer transitions 0/71 dead transitions. [2023-08-27 06:02:45,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 71 transitions, 412 flow [2023-08-27 06:02:45,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:02:45,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:02:45,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1151 transitions. [2023-08-27 06:02:45,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4121016827783745 [2023-08-27 06:02:45,253 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1151 transitions. [2023-08-27 06:02:45,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1151 transitions. [2023-08-27 06:02:45,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:02:45,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1151 transitions. [2023-08-27 06:02:45,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 383.6666666666667) internal successors, (1151), 3 states have internal predecessors, (1151), 0 states have call successors, (0), 0 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 06:02:45,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 931.0) internal successors, (3724), 4 states have internal predecessors, (3724), 0 states have call successors, (0), 0 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 06:02:45,263 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 931.0) internal successors, (3724), 4 states have internal predecessors, (3724), 0 states have call successors, (0), 0 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 06:02:45,263 INFO L175 Difference]: Start difference. First operand has 59 places, 74 transitions, 300 flow. Second operand 3 states and 1151 transitions. [2023-08-27 06:02:45,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 71 transitions, 412 flow [2023-08-27 06:02:45,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 71 transitions, 352 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-27 06:02:45,266 INFO L231 Difference]: Finished difference. Result has 52 places, 71 transitions, 212 flow [2023-08-27 06:02:45,266 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=931, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=52, PETRI_TRANSITIONS=71} [2023-08-27 06:02:45,268 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -12 predicate places. [2023-08-27 06:02:45,268 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 71 transitions, 212 flow [2023-08-27 06:02:45,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 0 states have call successors, (0), 0 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 06:02:45,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:02:45,273 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:02:45,278 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 06:02:45,478 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 06:02:45,478 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-27 06:02:45,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:02:45,479 INFO L85 PathProgramCache]: Analyzing trace with hash -553710743, now seen corresponding path program 1 times [2023-08-27 06:02:45,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:02:45,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156234671] [2023-08-27 06:02:45,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:02:45,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:02:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:02:45,574 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 06:02:45,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:02:45,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156234671] [2023-08-27 06:02:45,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156234671] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:02:45,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:02:45,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:02:45,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865449612] [2023-08-27 06:02:45,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:02:45,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:02:45,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:02:45,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:02:45,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:02:45,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 931 [2023-08-27 06:02:45,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 71 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 354.6666666666667) internal successors, (1064), 3 states have internal predecessors, (1064), 0 states have call successors, (0), 0 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 06:02:45,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:02:45,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 931 [2023-08-27 06:02:45,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:02:46,457 INFO L124 PetriNetUnfolderBase]: 4769/6783 cut-off events. [2023-08-27 06:02:46,457 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-27 06:02:46,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13710 conditions, 6783 events. 4769/6783 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 34502 event pairs, 4157 based on Foata normal form. 0/2793 useless extension candidates. Maximal degree in co-relation 13702. Up to 6775 conditions per place. [2023-08-27 06:02:46,495 INFO L140 encePairwiseOnDemand]: 924/931 looper letters, 56 selfloop transitions, 12 changer transitions 0/68 dead transitions. [2023-08-27 06:02:46,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 336 flow [2023-08-27 06:02:46,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:02:46,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:02:46,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1109 transitions. [2023-08-27 06:02:46,499 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3970640887934121 [2023-08-27 06:02:46,499 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1109 transitions. [2023-08-27 06:02:46,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1109 transitions. [2023-08-27 06:02:46,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:02:46,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1109 transitions. [2023-08-27 06:02:46,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 0 states have call successors, (0), 0 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 06:02:46,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 931.0) internal successors, (3724), 4 states have internal predecessors, (3724), 0 states have call successors, (0), 0 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 06:02:46,509 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 931.0) internal successors, (3724), 4 states have internal predecessors, (3724), 0 states have call successors, (0), 0 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 06:02:46,509 INFO L175 Difference]: Start difference. First operand has 52 places, 71 transitions, 212 flow. Second operand 3 states and 1109 transitions. [2023-08-27 06:02:46,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 336 flow [2023-08-27 06:02:46,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 68 transitions, 335 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:02:46,512 INFO L231 Difference]: Finished difference. Result has 53 places, 68 transitions, 223 flow [2023-08-27 06:02:46,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=931, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=223, PETRI_PLACES=53, PETRI_TRANSITIONS=68} [2023-08-27 06:02:46,514 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -11 predicate places. [2023-08-27 06:02:46,514 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 68 transitions, 223 flow [2023-08-27 06:02:46,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 354.6666666666667) internal successors, (1064), 3 states have internal predecessors, (1064), 0 states have call successors, (0), 0 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 06:02:46,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:02:46,518 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:02:46,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 06:02:46,518 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-27 06:02:46,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:02:46,519 INFO L85 PathProgramCache]: Analyzing trace with hash -193781908, now seen corresponding path program 1 times [2023-08-27 06:02:46,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:02:46,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749261030] [2023-08-27 06:02:46,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:02:46,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:02:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:02:46,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-27 06:02:46,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:02:46,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749261030] [2023-08-27 06:02:46,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749261030] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:02:46,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:02:46,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 06:02:46,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637565779] [2023-08-27 06:02:46,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:02:46,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:02:46,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:02:46,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:02:46,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:02:46,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 931 [2023-08-27 06:02:46,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 68 transitions, 223 flow. Second operand has 3 states, 3 states have (on average 384.6666666666667) internal successors, (1154), 3 states have internal predecessors, (1154), 0 states have call successors, (0), 0 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 06:02:46,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:02:46,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 931 [2023-08-27 06:02:46,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:02:48,036 INFO L124 PetriNetUnfolderBase]: 8199/11665 cut-off events. [2023-08-27 06:02:48,037 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-27 06:02:48,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23563 conditions, 11665 events. 8199/11665 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 67032 event pairs, 4157 based on Foata normal form. 0/4807 useless extension candidates. Maximal degree in co-relation 23554. Up to 6784 conditions per place. [2023-08-27 06:02:48,096 INFO L140 encePairwiseOnDemand]: 927/931 looper letters, 102 selfloop transitions, 2 changer transitions 0/104 dead transitions. [2023-08-27 06:02:48,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 104 transitions, 508 flow [2023-08-27 06:02:48,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:02:48,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:02:48,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1228 transitions. [2023-08-27 06:02:48,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4396706050841389 [2023-08-27 06:02:48,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1228 transitions. [2023-08-27 06:02:48,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1228 transitions. [2023-08-27 06:02:48,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:02:48,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1228 transitions. [2023-08-27 06:02:48,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 0 states have call successors, (0), 0 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 06:02:48,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 931.0) internal successors, (3724), 4 states have internal predecessors, (3724), 0 states have call successors, (0), 0 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 06:02:48,110 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 931.0) internal successors, (3724), 4 states have internal predecessors, (3724), 0 states have call successors, (0), 0 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 06:02:48,110 INFO L175 Difference]: Start difference. First operand has 53 places, 68 transitions, 223 flow. Second operand 3 states and 1228 transitions. [2023-08-27 06:02:48,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 104 transitions, 508 flow [2023-08-27 06:02:48,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 104 transitions, 484 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 06:02:48,113 INFO L231 Difference]: Finished difference. Result has 54 places, 69 transitions, 213 flow [2023-08-27 06:02:48,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=931, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=54, PETRI_TRANSITIONS=69} [2023-08-27 06:02:48,116 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -10 predicate places. [2023-08-27 06:02:48,116 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 69 transitions, 213 flow [2023-08-27 06:02:48,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.6666666666667) internal successors, (1154), 3 states have internal predecessors, (1154), 0 states have call successors, (0), 0 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 06:02:48,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:02:48,117 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:02:48,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 06:02:48,118 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-27 06:02:48,118 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:02:48,118 INFO L85 PathProgramCache]: Analyzing trace with hash -193781914, now seen corresponding path program 1 times [2023-08-27 06:02:48,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:02:48,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496558597] [2023-08-27 06:02:48,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:02:48,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:02:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:02:48,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 06:02:48,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:02:48,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496558597] [2023-08-27 06:02:48,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496558597] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:02:48,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763113596] [2023-08-27 06:02:48,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:02:48,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:02:48,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:02:48,224 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 06:02:48,226 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 06:02:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:02:48,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-27 06:02:48,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:02:48,370 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 06:02:48,370 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:02:48,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 06:02:48,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763113596] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:02:48,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:02:48,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-08-27 06:02:48,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113549752] [2023-08-27 06:02:48,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:02:48,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 06:02:48,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:02:48,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 06:02:48,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-27 06:02:48,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 931 [2023-08-27 06:02:48,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 69 transitions, 213 flow. Second operand has 8 states, 8 states have (on average 354.375) internal successors, (2835), 8 states have internal predecessors, (2835), 0 states have call successors, (0), 0 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 06:02:48,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:02:48,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 931 [2023-08-27 06:02:48,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:02:49,831 INFO L124 PetriNetUnfolderBase]: 8190/11656 cut-off events. [2023-08-27 06:02:49,831 INFO L125 PetriNetUnfolderBase]: For 1047/1047 co-relation queries the response was YES. [2023-08-27 06:02:49,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24617 conditions, 11656 events. 8190/11656 cut-off events. For 1047/1047 co-relation queries the response was YES. Maximal size of possible extension queue 717. Compared 63657 event pairs, 7283 based on Foata normal form. 0/5163 useless extension candidates. Maximal degree in co-relation 24608. Up to 11645 conditions per place. [2023-08-27 06:02:49,883 INFO L140 encePairwiseOnDemand]: 924/931 looper letters, 45 selfloop transitions, 15 changer transitions 0/60 dead transitions. [2023-08-27 06:02:49,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 60 transitions, 297 flow [2023-08-27 06:02:49,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:02:49,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:02:49,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2180 transitions. [2023-08-27 06:02:49,889 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3902613677049767 [2023-08-27 06:02:49,889 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2180 transitions. [2023-08-27 06:02:49,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2180 transitions. [2023-08-27 06:02:49,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:02:49,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2180 transitions. [2023-08-27 06:02:49,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 363.3333333333333) internal successors, (2180), 6 states have internal predecessors, (2180), 0 states have call successors, (0), 0 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 06:02:49,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 931.0) internal successors, (6517), 7 states have internal predecessors, (6517), 0 states have call successors, (0), 0 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 06:02:49,903 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 931.0) internal successors, (6517), 7 states have internal predecessors, (6517), 0 states have call successors, (0), 0 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 06:02:49,903 INFO L175 Difference]: Start difference. First operand has 54 places, 69 transitions, 213 flow. Second operand 6 states and 2180 transitions. [2023-08-27 06:02:49,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 60 transitions, 297 flow [2023-08-27 06:02:49,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 60 transitions, 295 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:02:49,905 INFO L231 Difference]: Finished difference. Result has 58 places, 60 transitions, 205 flow [2023-08-27 06:02:49,905 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=931, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=205, PETRI_PLACES=58, PETRI_TRANSITIONS=60} [2023-08-27 06:02:49,905 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -6 predicate places. [2023-08-27 06:02:49,906 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 60 transitions, 205 flow [2023-08-27 06:02:49,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 354.375) internal successors, (2835), 8 states have internal predecessors, (2835), 0 states have call successors, (0), 0 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 06:02:49,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:02:49,907 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:02:49,915 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-27 06:02:50,112 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 06:02:50,113 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-27 06:02:50,113 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:02:50,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1295922467, now seen corresponding path program 2 times [2023-08-27 06:02:50,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:02:50,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800268383] [2023-08-27 06:02:50,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:02:50,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:02:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:02:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-27 06:02:50,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:02:50,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800268383] [2023-08-27 06:02:50,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800268383] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:02:50,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964276624] [2023-08-27 06:02:50,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 06:02:50,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:02:50,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:02:50,324 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 06:02:50,328 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 06:02:50,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-27 06:02:50,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:02:50,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-27 06:02:50,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:02:50,566 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-27 06:02:50,566 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:02:50,652 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-27 06:02:50,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964276624] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:02:50,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:02:50,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2023-08-27 06:02:50,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135180823] [2023-08-27 06:02:50,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:02:50,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-27 06:02:50,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:02:50,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-27 06:02:50,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-08-27 06:02:50,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 931 [2023-08-27 06:02:50,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 60 transitions, 205 flow. Second operand has 17 states, 17 states have (on average 353.6470588235294) internal successors, (6012), 17 states have internal predecessors, (6012), 0 states have call successors, (0), 0 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 06:02:50,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:02:50,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 931 [2023-08-27 06:02:50,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:02:52,035 INFO L124 PetriNetUnfolderBase]: 8190/11659 cut-off events. [2023-08-27 06:02:52,035 INFO L125 PetriNetUnfolderBase]: For 684/684 co-relation queries the response was YES. [2023-08-27 06:02:52,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24459 conditions, 11659 events. 8190/11659 cut-off events. For 684/684 co-relation queries the response was YES. Maximal size of possible extension queue 717. Compared 63650 event pairs, 7283 based on Foata normal form. 2/5170 useless extension candidates. Maximal degree in co-relation 24449. Up to 11645 conditions per place. [2023-08-27 06:02:52,190 INFO L140 encePairwiseOnDemand]: 924/931 looper letters, 45 selfloop transitions, 18 changer transitions 0/63 dead transitions. [2023-08-27 06:02:52,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 63 transitions, 343 flow [2023-08-27 06:02:52,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 06:02:52,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 06:02:52,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2529 transitions. [2023-08-27 06:02:52,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3880619917139788 [2023-08-27 06:02:52,197 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2529 transitions. [2023-08-27 06:02:52,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2529 transitions. [2023-08-27 06:02:52,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:02:52,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2529 transitions. [2023-08-27 06:02:52,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 361.2857142857143) internal successors, (2529), 7 states have internal predecessors, (2529), 0 states have call successors, (0), 0 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 06:02:52,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 931.0) internal successors, (7448), 8 states have internal predecessors, (7448), 0 states have call successors, (0), 0 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 06:02:52,213 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 931.0) internal successors, (7448), 8 states have internal predecessors, (7448), 0 states have call successors, (0), 0 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 06:02:52,213 INFO L175 Difference]: Start difference. First operand has 58 places, 60 transitions, 205 flow. Second operand 7 states and 2529 transitions. [2023-08-27 06:02:52,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 63 transitions, 343 flow [2023-08-27 06:02:52,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 63 transitions, 313 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-27 06:02:52,215 INFO L231 Difference]: Finished difference. Result has 60 places, 63 transitions, 237 flow [2023-08-27 06:02:52,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=931, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=237, PETRI_PLACES=60, PETRI_TRANSITIONS=63} [2023-08-27 06:02:52,217 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -4 predicate places. [2023-08-27 06:02:52,217 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 63 transitions, 237 flow [2023-08-27 06:02:52,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 353.6470588235294) internal successors, (6012), 17 states have internal predecessors, (6012), 0 states have call successors, (0), 0 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 06:02:52,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:02:52,219 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:02:52,227 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 06:02:52,426 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 06:02:52,426 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-27 06:02:52,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:02:52,427 INFO L85 PathProgramCache]: Analyzing trace with hash 369109926, now seen corresponding path program 3 times [2023-08-27 06:02:52,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:02:52,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132822681] [2023-08-27 06:02:52,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:02:52,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:02:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:02:53,937 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-27 06:02:53,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:02:53,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132822681] [2023-08-27 06:02:53,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132822681] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:02:53,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191809308] [2023-08-27 06:02:53,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-27 06:02:53,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:02:53,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:02:53,939 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 06:02:53,942 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 06:02:54,249 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-08-27 06:02:54,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:02:54,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 60 conjunts are in the unsatisfiable core [2023-08-27 06:02:54,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:02:54,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:02:54,327 INFO L322 Elim1Store]: treesize reduction 56, result has 37.8 percent of original size [2023-08-27 06:02:54,328 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 3 case distinctions, treesize of input 15 treesize of output 39 [2023-08-27 06:02:54,378 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 06:02:54,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:02:54,422 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 23 treesize of output 22 [2023-08-27 06:02:54,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:02:54,472 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 23 treesize of output 22 [2023-08-27 06:02:54,515 INFO L322 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-27 06:02:54,516 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 23 treesize of output 26 [2023-08-27 06:02:54,588 INFO L322 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-27 06:02:54,588 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 27 treesize of output 30 [2023-08-27 06:02:54,656 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-27 06:02:54,656 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2023-08-27 06:02:54,691 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 16 treesize of output 18 [2023-08-27 06:02:54,718 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 16 treesize of output 18 [2023-08-27 06:02:54,734 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 16 treesize of output 18 [2023-08-27 06:02:54,755 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 16 treesize of output 18 [2023-08-27 06:02:54,770 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 16 treesize of output 18 [2023-08-27 06:02:54,804 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-27 06:02:54,804 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 06:02:54,838 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 16 treesize of output 18 [2023-08-27 06:02:54,851 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 16 treesize of output 18 [2023-08-27 06:02:54,874 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 16 treesize of output 18 [2023-08-27 06:02:54,885 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 16 treesize of output 18 [2023-08-27 06:02:54,900 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 16 treesize of output 18 [2023-08-27 06:02:54,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:02:54,933 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 16 treesize of output 18 [2023-08-27 06:02:54,954 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 17 treesize of output 9 [2023-08-27 06:02:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 1 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-27 06:02:54,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:02:55,043 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_432 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_432) c_~o_0~0.base) c_~o_0~0.offset)))) is different from false [2023-08-27 06:03:10,103 INFO L322 Elim1Store]: treesize reduction 212, result has 30.5 percent of original size [2023-08-27 06:03:10,104 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 58 treesize of output 111 [2023-08-27 06:03:10,184 INFO L322 Elim1Store]: treesize reduction 24, result has 70.4 percent of original size [2023-08-27 06:03:10,185 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 346 treesize of output 362 [2023-08-27 06:03:10,216 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 62 treesize of output 60 [2023-08-27 06:03:10,235 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 122 treesize of output 118 [2023-08-27 06:03:10,255 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 118 treesize of output 110 [2023-08-27 06:03:10,609 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 19 refuted. 1 times theorem prover too weak. 20 trivial. 5 not checked. [2023-08-27 06:03:10,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191809308] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:03:10,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:03:10,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 36 [2023-08-27 06:03:10,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214055244] [2023-08-27 06:03:10,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:03:10,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-08-27 06:03:10,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:03:10,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-08-27 06:03:10,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1136, Unknown=14, NotChecked=70, Total=1406 [2023-08-27 06:03:10,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 931 [2023-08-27 06:03:10,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 63 transitions, 237 flow. Second operand has 38 states, 38 states have (on average 313.2631578947368) internal successors, (11904), 38 states have internal predecessors, (11904), 0 states have call successors, (0), 0 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 06:03:10,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:03:10,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 931 [2023-08-27 06:03:10,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:03:13,573 INFO L124 PetriNetUnfolderBase]: 9953/14145 cut-off events. [2023-08-27 06:03:13,574 INFO L125 PetriNetUnfolderBase]: For 864/864 co-relation queries the response was YES. [2023-08-27 06:03:13,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29667 conditions, 14145 events. 9953/14145 cut-off events. For 864/864 co-relation queries the response was YES. Maximal size of possible extension queue 954. Compared 80572 event pairs, 6813 based on Foata normal form. 0/6309 useless extension candidates. Maximal degree in co-relation 29656. Up to 10551 conditions per place. [2023-08-27 06:03:13,639 INFO L140 encePairwiseOnDemand]: 919/931 looper letters, 110 selfloop transitions, 20 changer transitions 0/130 dead transitions. [2023-08-27 06:03:13,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 130 transitions, 647 flow [2023-08-27 06:03:13,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-27 06:03:13,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-27 06:03:13,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 4491 transitions. [2023-08-27 06:03:13,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3445603805431947 [2023-08-27 06:03:13,650 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 4491 transitions. [2023-08-27 06:03:13,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 4491 transitions. [2023-08-27 06:03:13,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:03:13,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 4491 transitions. [2023-08-27 06:03:13,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 320.7857142857143) internal successors, (4491), 14 states have internal predecessors, (4491), 0 states have call successors, (0), 0 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 06:03:13,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 931.0) internal successors, (13965), 15 states have internal predecessors, (13965), 0 states have call successors, (0), 0 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 06:03:13,677 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 931.0) internal successors, (13965), 15 states have internal predecessors, (13965), 0 states have call successors, (0), 0 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 06:03:13,677 INFO L175 Difference]: Start difference. First operand has 60 places, 63 transitions, 237 flow. Second operand 14 states and 4491 transitions. [2023-08-27 06:03:13,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 130 transitions, 647 flow [2023-08-27 06:03:13,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 130 transitions, 617 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-27 06:03:13,681 INFO L231 Difference]: Finished difference. Result has 74 places, 72 transitions, 305 flow [2023-08-27 06:03:13,681 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=931, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=305, PETRI_PLACES=74, PETRI_TRANSITIONS=72} [2023-08-27 06:03:13,682 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 10 predicate places. [2023-08-27 06:03:13,682 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 72 transitions, 305 flow [2023-08-27 06:03:13,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 313.2631578947368) internal successors, (11904), 38 states have internal predecessors, (11904), 0 states have call successors, (0), 0 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 06:03:13,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:03:13,685 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:03:13,693 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 06:03:13,891 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 06:03:13,891 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-27 06:03:13,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:03:13,891 INFO L85 PathProgramCache]: Analyzing trace with hash 369109925, now seen corresponding path program 1 times [2023-08-27 06:03:13,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:03:13,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165485329] [2023-08-27 06:03:13,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:03:13,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:03:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:03:15,331 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 06:03:15,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:03:15,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165485329] [2023-08-27 06:03:15,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165485329] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:03:15,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412208427] [2023-08-27 06:03:15,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:03:15,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:03:15,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:03:15,333 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 06:03:15,336 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 06:03:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:03:15,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 43 conjunts are in the unsatisfiable core [2023-08-27 06:03:15,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:03:15,547 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-08-27 06:03:15,585 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 06:03:15,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:03:15,628 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 23 treesize of output 22 [2023-08-27 06:03:15,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:03:15,675 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 23 treesize of output 22 [2023-08-27 06:03:15,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:03:15,722 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 23 treesize of output 22 [2023-08-27 06:03:15,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:03:15,772 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 23 treesize of output 22 [2023-08-27 06:03:15,815 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-27 06:03:15,815 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 06:03:15,858 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 16 treesize of output 18 [2023-08-27 06:03:15,868 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 16 treesize of output 18 [2023-08-27 06:03:15,879 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 16 treesize of output 18 [2023-08-27 06:03:15,892 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 16 treesize of output 18 [2023-08-27 06:03:15,905 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 16 treesize of output 18 [2023-08-27 06:03:15,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:03:15,941 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 16 treesize of output 18 [2023-08-27 06:03:15,959 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-08-27 06:03:15,959 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:03:16,018 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_549 (Array Int Int))) (< 0 (+ 4294967296 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_549) c_~o_2~0.base) c_~o_2~0.offset)))) is different from false [2023-08-27 06:03:16,029 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_548 (Array Int Int)) (v_ArrVal_549 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_548) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_549) c_~o_2~0.base) c_~o_2~0.offset) 4294967296))) is different from false [2023-08-27 06:03:32,482 INFO L322 Elim1Store]: treesize reduction 244, result has 20.0 percent of original size [2023-08-27 06:03:32,484 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 55 treesize of output 76 [2023-08-27 06:03:32,500 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:03:32,501 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 143 treesize of output 135 [2023-08-27 06:03:32,506 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 27 treesize of output 25 [2023-08-27 06:03:32,513 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 28 treesize of output 24 [2023-08-27 06:03:32,603 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 10 treesize of output 8 [2023-08-27 06:03:32,638 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 25 trivial. 5 not checked. [2023-08-27 06:03:32,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412208427] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:03:32,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:03:32,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 36 [2023-08-27 06:03:32,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943120038] [2023-08-27 06:03:32,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:03:32,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-08-27 06:03:32,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:03:32,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-08-27 06:03:32,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1068, Unknown=11, NotChecked=138, Total=1406 [2023-08-27 06:03:32,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 931 [2023-08-27 06:03:32,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 72 transitions, 305 flow. Second operand has 38 states, 38 states have (on average 314.2631578947368) internal successors, (11942), 38 states have internal predecessors, (11942), 0 states have call successors, (0), 0 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 06:03:32,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:03:32,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 931 [2023-08-27 06:03:32,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:03:35,912 INFO L124 PetriNetUnfolderBase]: 12522/18490 cut-off events. [2023-08-27 06:03:35,912 INFO L125 PetriNetUnfolderBase]: For 4868/4868 co-relation queries the response was YES. [2023-08-27 06:03:35,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41404 conditions, 18490 events. 12522/18490 cut-off events. For 4868/4868 co-relation queries the response was YES. Maximal size of possible extension queue 1350. Compared 121944 event pairs, 6719 based on Foata normal form. 0/9488 useless extension candidates. Maximal degree in co-relation 41387. Up to 12332 conditions per place. [2023-08-27 06:03:35,997 INFO L140 encePairwiseOnDemand]: 914/931 looper letters, 68 selfloop transitions, 38 changer transitions 0/106 dead transitions. [2023-08-27 06:03:35,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 106 transitions, 607 flow [2023-08-27 06:03:35,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-27 06:03:35,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-27 06:03:36,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 6049 transitions. [2023-08-27 06:03:36,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3419639323873594 [2023-08-27 06:03:36,018 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 6049 transitions. [2023-08-27 06:03:36,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 6049 transitions. [2023-08-27 06:03:36,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:03:36,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 6049 transitions. [2023-08-27 06:03:36,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 318.36842105263156) internal successors, (6049), 19 states have internal predecessors, (6049), 0 states have call successors, (0), 0 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 06:03:36,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 931.0) internal successors, (18620), 20 states have internal predecessors, (18620), 0 states have call successors, (0), 0 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 06:03:36,059 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 931.0) internal successors, (18620), 20 states have internal predecessors, (18620), 0 states have call successors, (0), 0 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 06:03:36,059 INFO L175 Difference]: Start difference. First operand has 74 places, 72 transitions, 305 flow. Second operand 19 states and 6049 transitions. [2023-08-27 06:03:36,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 106 transitions, 607 flow [2023-08-27 06:03:36,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 106 transitions, 589 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-27 06:03:36,064 INFO L231 Difference]: Finished difference. Result has 93 places, 80 transitions, 426 flow [2023-08-27 06:03:36,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=931, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=426, PETRI_PLACES=93, PETRI_TRANSITIONS=80} [2023-08-27 06:03:36,065 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 29 predicate places. [2023-08-27 06:03:36,065 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 80 transitions, 426 flow [2023-08-27 06:03:36,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 314.2631578947368) internal successors, (11942), 38 states have internal predecessors, (11942), 0 states have call successors, (0), 0 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 06:03:36,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:03:36,068 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:03:36,078 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 06:03:36,274 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 06:03:36,275 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-27 06:03:36,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:03:36,275 INFO L85 PathProgramCache]: Analyzing trace with hash 369109861, now seen corresponding path program 1 times [2023-08-27 06:03:36,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:03:36,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120807185] [2023-08-27 06:03:36,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:03:36,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:03:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:03:37,120 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-08-27 06:03:37,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:03:37,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120807185] [2023-08-27 06:03:37,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120807185] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:03:37,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654303038] [2023-08-27 06:03:37,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:03:37,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:03:37,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:03:37,125 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:03:37,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-27 06:03:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:03:37,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 43 conjunts are in the unsatisfiable core [2023-08-27 06:03:37,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:03:37,302 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-08-27 06:03:37,336 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 06:03:37,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:03:37,376 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 06:03:37,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:03:37,415 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 21 treesize of output 20 [2023-08-27 06:03:37,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:03:37,457 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 06:03:37,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:03:37,492 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 06:03:37,526 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-27 06:03:37,526 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 06:03:37,568 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 06:03:37,580 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 06:03:37,589 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 06:03:37,603 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 06:03:37,615 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 06:03:37,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:03:37,645 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 06:03:37,663 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-08-27 06:03:37,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:03:37,742 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_666 (Array Int Int)) (v_ArrVal_665 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_665) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_666) c_~o_2~0.base) c_~o_2~0.offset) 9223372039002259456)) is different from false [2023-08-27 06:03:54,112 INFO L322 Elim1Store]: treesize reduction 244, result has 20.0 percent of original size [2023-08-27 06:03:54,112 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 53 treesize of output 74 [2023-08-27 06:03:54,121 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:03:54,121 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 63 treesize of output 59 [2023-08-27 06:03:54,126 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 48 treesize of output 44 [2023-08-27 06:03:54,130 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 22 treesize of output 20 [2023-08-27 06:03:54,207 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 10 treesize of output 8 [2023-08-27 06:03:54,234 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 25 trivial. 5 not checked. [2023-08-27 06:03:54,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654303038] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:03:54,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:03:54,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-27 06:03:54,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623534420] [2023-08-27 06:03:54,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:03:54,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-27 06:03:54,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:03:54,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-27 06:03:54,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=754, Unknown=12, NotChecked=58, Total=992 [2023-08-27 06:03:54,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 931 [2023-08-27 06:03:54,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 80 transitions, 426 flow. Second operand has 32 states, 32 states have (on average 323.3125) internal successors, (10346), 32 states have internal predecessors, (10346), 0 states have call successors, (0), 0 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 06:03:54,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:03:54,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 931 [2023-08-27 06:03:54,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:04:34,927 WARN L234 SmtUtils]: Spent 40.47s on a formula simplification. DAG size of input: 39 DAG size of output: 37 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-27 06:05:03,167 WARN L234 SmtUtils]: Spent 28.21s on a formula simplification. DAG size of input: 42 DAG size of output: 40 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-27 06:05:19,312 WARN L234 SmtUtils]: Spent 16.12s on a formula simplification. DAG size of input: 42 DAG size of output: 40 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-27 06:05:41,661 WARN L234 SmtUtils]: Spent 22.32s on a formula simplification. DAG size of input: 43 DAG size of output: 41 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-27 06:05:51,766 WARN L234 SmtUtils]: Spent 10.08s on a formula simplification. DAG size of input: 43 DAG size of output: 41 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-27 06:05:54,364 INFO L124 PetriNetUnfolderBase]: 13271/19748 cut-off events. [2023-08-27 06:05:54,365 INFO L125 PetriNetUnfolderBase]: For 13981/13981 co-relation queries the response was YES. [2023-08-27 06:05:54,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48533 conditions, 19748 events. 13271/19748 cut-off events. For 13981/13981 co-relation queries the response was YES. Maximal size of possible extension queue 1490. Compared 133726 event pairs, 7358 based on Foata normal form. 1/10757 useless extension candidates. Maximal degree in co-relation 48512. Up to 13591 conditions per place. [2023-08-27 06:05:54,445 INFO L140 encePairwiseOnDemand]: 914/931 looper letters, 71 selfloop transitions, 38 changer transitions 0/109 dead transitions. [2023-08-27 06:05:54,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 109 transitions, 728 flow [2023-08-27 06:05:54,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-27 06:05:54,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-27 06:05:54,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 5572 transitions. [2023-08-27 06:05:54,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3520566121185316 [2023-08-27 06:05:54,459 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 5572 transitions. [2023-08-27 06:05:54,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 5572 transitions. [2023-08-27 06:05:54,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:05:54,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 5572 transitions. [2023-08-27 06:05:54,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 327.7647058823529) internal successors, (5572), 17 states have internal predecessors, (5572), 0 states have call successors, (0), 0 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 06:05:54,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 931.0) internal successors, (16758), 18 states have internal predecessors, (16758), 0 states have call successors, (0), 0 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 06:05:54,487 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 931.0) internal successors, (16758), 18 states have internal predecessors, (16758), 0 states have call successors, (0), 0 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 06:05:54,488 INFO L175 Difference]: Start difference. First operand has 93 places, 80 transitions, 426 flow. Second operand 17 states and 5572 transitions. [2023-08-27 06:05:54,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 109 transitions, 728 flow [2023-08-27 06:05:54,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 109 transitions, 680 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-08-27 06:05:54,499 INFO L231 Difference]: Finished difference. Result has 103 places, 84 transitions, 494 flow [2023-08-27 06:05:54,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=931, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=494, PETRI_PLACES=103, PETRI_TRANSITIONS=84} [2023-08-27 06:05:54,500 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 39 predicate places. [2023-08-27 06:05:54,500 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 84 transitions, 494 flow [2023-08-27 06:05:54,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 323.3125) internal successors, (10346), 32 states have internal predecessors, (10346), 0 states have call successors, (0), 0 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 06:05:54,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:05:54,502 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:05:54,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-27 06:05:54,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:05:54,708 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-27 06:05:54,708 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:05:54,708 INFO L85 PathProgramCache]: Analyzing trace with hash 369109924, now seen corresponding path program 1 times [2023-08-27 06:05:54,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:05:54,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408046885] [2023-08-27 06:05:54,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:05:54,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:05:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:05:56,251 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-08-27 06:05:56,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:05:56,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408046885] [2023-08-27 06:05:56,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408046885] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:05:56,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001569292] [2023-08-27 06:05:56,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:05:56,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:05:56,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:05:56,253 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:05:56,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-27 06:05:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:05:56,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 72 conjunts are in the unsatisfiable core [2023-08-27 06:05:56,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:05:56,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:05:56,488 INFO L322 Elim1Store]: treesize reduction 56, result has 37.8 percent of original size [2023-08-27 06:05:56,488 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 3 case distinctions, treesize of input 15 treesize of output 39 [2023-08-27 06:05:56,529 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 06:05:56,567 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 06:05:56,604 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 06:05:56,645 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 06:05:56,681 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 06:05:56,734 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-27 06:05:56,735 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2023-08-27 06:05:56,790 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 06:05:56,838 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 06:05:56,892 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 06:05:56,933 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 06:05:56,980 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 06:05:57,028 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-27 06:05:57,029 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 06:05:57,065 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 06:05:57,086 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 06:05:57,102 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 06:05:57,113 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 06:05:57,131 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 06:05:57,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:05:57,173 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 06:05:57,286 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 06:05:57,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:05:57,593 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_792 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_792))) (let ((.cse0 (select (select .cse1 ~o_2~0.base) c_~o_2~0.offset))) (or (< .cse0 0) (< (select (select .cse1 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse0 2147483648)) (< 0 .cse0))))) (forall ((v_ArrVal_792 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_792))) (let ((.cse2 (select (select .cse3 ~o_2~0.base) c_~o_2~0.offset))) (or (<= .cse2 0) (< 9223372039002259455 .cse2) (< (select (select .cse3 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse2 2147483648))))))) is different from false [2023-08-27 06:05:57,620 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_791 (Array Int Int)) (v_ArrVal_792 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_791) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_792))) (let ((.cse1 (select (select .cse0 ~o_2~0.base) c_~o_2~0.offset))) (or (< (select (select .cse0 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse1 2147483648)) (< 9223372039002259455 .cse1) (<= .cse1 0))))) (forall ((v_ArrVal_791 (Array Int Int)) (v_ArrVal_792 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse2 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_791) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_792))) (let ((.cse3 (select (select .cse2 ~o_2~0.base) c_~o_2~0.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 06:06:32,084 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:06:32,084 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 511 treesize of output 297 [2023-08-27 06:06:32,096 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:06:32,098 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2023-08-27 06:06:32,278 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:06:32,279 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 14709 treesize of output 14457 [2023-08-27 06:06:32,581 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:06:32,582 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 4279 treesize of output 4144 [2023-08-27 06:06:32,717 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:06:32,718 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 4135 treesize of output 4072 [2023-08-27 06:06:32,892 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:06:32,893 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 4063 treesize of output 4036 [2023-08-27 06:06:33,044 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:06:33,044 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 4089 treesize of output 4045 [2023-08-27 06:06:33,183 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:06:33,184 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 3975 treesize of output 3840 [2023-08-27 06:06:33,277 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-08-27 06:06:33,331 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:06:33,331 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 3831 treesize of output 3552 [2023-08-27 06:06:33,472 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:06:33,473 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 3543 treesize of output 3480 Received shutdown request... [2023-08-27 06:15:55,084 WARN L266 SmtUtils]: Removed 2 from assertion stack [2023-08-27 06:15:55,086 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 58 remaining) [2023-08-27 06:15:55,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-27 06:15:55,124 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-27 06:15:55,129 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 06:15:55,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-08-27 06:15:55,292 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. [2023-08-27 06:15:55,294 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 58 remaining) [2023-08-27 06:15:55,294 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 58 remaining) [2023-08-27 06:15:55,294 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 58 remaining) [2023-08-27 06:15:55,294 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 58 remaining) [2023-08-27 06:15:55,294 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 58 remaining) [2023-08-27 06:15:55,295 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 58 remaining) [2023-08-27 06:15:55,295 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 58 remaining) [2023-08-27 06:15:55,295 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 58 remaining) [2023-08-27 06:15:55,295 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 58 remaining) [2023-08-27 06:15:55,295 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 58 remaining) [2023-08-27 06:15:55,295 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 58 remaining) [2023-08-27 06:15:55,295 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 58 remaining) [2023-08-27 06:15:55,295 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 58 remaining) [2023-08-27 06:15:55,295 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 58 remaining) [2023-08-27 06:15:55,295 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 58 remaining) [2023-08-27 06:15:55,296 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 58 remaining) [2023-08-27 06:15:55,296 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 58 remaining) [2023-08-27 06:15:55,296 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 58 remaining) [2023-08-27 06:15:55,296 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 58 remaining) [2023-08-27 06:15:55,296 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 58 remaining) [2023-08-27 06:15:55,296 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 58 remaining) [2023-08-27 06:15:55,297 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 58 remaining) [2023-08-27 06:15:55,297 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 58 remaining) [2023-08-27 06:15:55,297 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 58 remaining) [2023-08-27 06:15:55,297 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 58 remaining) [2023-08-27 06:15:55,297 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 58 remaining) [2023-08-27 06:15:55,297 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 58 remaining) [2023-08-27 06:15:55,297 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 58 remaining) [2023-08-27 06:15:55,298 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 58 remaining) [2023-08-27 06:15:55,298 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 58 remaining) [2023-08-27 06:15:55,299 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONASSERT (26 of 58 remaining) [2023-08-27 06:15:55,299 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 58 remaining) [2023-08-27 06:15:55,299 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 58 remaining) [2023-08-27 06:15:55,299 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 58 remaining) [2023-08-27 06:15:55,299 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 58 remaining) [2023-08-27 06:15:55,299 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 58 remaining) [2023-08-27 06:15:55,299 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 58 remaining) [2023-08-27 06:15:55,300 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 58 remaining) [2023-08-27 06:15:55,300 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 58 remaining) [2023-08-27 06:15:55,300 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 58 remaining) [2023-08-27 06:15:55,300 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 58 remaining) [2023-08-27 06:15:55,300 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 58 remaining) [2023-08-27 06:15:55,300 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 58 remaining) [2023-08-27 06:15:55,300 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 58 remaining) [2023-08-27 06:15:55,300 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 58 remaining) [2023-08-27 06:15:55,301 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 58 remaining) [2023-08-27 06:15:55,301 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 58 remaining) [2023-08-27 06:15:55,301 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 58 remaining) [2023-08-27 06:15:55,301 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 58 remaining) [2023-08-27 06:15:55,301 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 58 remaining) [2023-08-27 06:15:55,301 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 58 remaining) [2023-08-27 06:15:55,301 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 58 remaining) [2023-08-27 06:15:55,301 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 58 remaining) [2023-08-27 06:15:55,301 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 58 remaining) [2023-08-27 06:15:55,301 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 58 remaining) [2023-08-27 06:15:55,301 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 58 remaining) [2023-08-27 06:15:55,302 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 58 remaining) [2023-08-27 06:15:55,302 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:15:55,306 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 06:15:55,307 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 06:15:55,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:15:55 BasicIcfg [2023-08-27 06:15:55,309 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 06:15:55,310 INFO L158 Benchmark]: Toolchain (without parser) took 818323.93ms. Allocated memory was 331.4MB in the beginning and 2.9GB in the end (delta: 2.5GB). Free memory was 307.8MB in the beginning and 2.1GB in the end (delta: -1.8GB). Peak memory consumption was 1.9GB. Max. memory is 16.0GB. [2023-08-27 06:15:55,310 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 331.4MB. Free memory is still 307.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 06:15:55,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.86ms. Allocated memory is still 331.4MB. Free memory was 307.3MB in the beginning and 295.3MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 06:15:55,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.09ms. Allocated memory is still 331.4MB. Free memory was 295.3MB in the beginning and 292.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 06:15:55,311 INFO L158 Benchmark]: Boogie Preprocessor took 60.93ms. Allocated memory is still 331.4MB. Free memory was 292.4MB in the beginning and 290.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 06:15:55,311 INFO L158 Benchmark]: RCFGBuilder took 714.17ms. Allocated memory is still 331.4MB. Free memory was 290.3MB in the beginning and 260.2MB in the end (delta: 30.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-27 06:15:55,311 INFO L158 Benchmark]: TraceAbstraction took 817150.52ms. Allocated memory was 331.4MB in the beginning and 2.9GB in the end (delta: 2.5GB). Free memory was 259.3MB in the beginning and 2.1GB in the end (delta: -1.9GB). Peak memory consumption was 1.8GB. Max. memory is 16.0GB. [2023-08-27 06:15:55,313 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 331.4MB. Free memory is still 307.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 331.86ms. Allocated memory is still 331.4MB. Free memory was 307.3MB in the beginning and 295.3MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 58.09ms. Allocated memory is still 331.4MB. Free memory was 295.3MB in the beginning and 292.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 60.93ms. Allocated memory is still 331.4MB. Free memory was 292.4MB in the beginning and 290.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 714.17ms. Allocated memory is still 331.4MB. Free memory was 290.3MB in the beginning and 260.2MB in the end (delta: 30.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * TraceAbstraction took 817150.52ms. Allocated memory was 331.4MB in the beginning and 2.9GB in the end (delta: 2.5GB). Free memory was 259.3MB in the beginning and 2.1GB in the end (delta: -1.9GB). Peak memory consumption was 1.8GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.3s, 379 PlacesBefore, 64 PlacesAfterwards, 404 TransitionsBefore, 60 TransitionsAfterwards, 35358 CoEnabledTransitionPairs, 8 FixpointIterations, 154 TrivialSequentialCompositions, 247 ConcurrentSequentialCompositions, 33 TrivialYvCompositions, 50 ConcurrentYvCompositions, 29 ChoiceCompositions, 513 TotalNumberOfCompositions, 38762 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33769, independent: 33616, independent conditional: 0, independent unconditional: 33616, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 20560, independent: 20521, independent conditional: 0, independent unconditional: 20521, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 33769, independent: 13095, independent conditional: 0, independent unconditional: 13095, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 20560, unknown conditional: 0, unknown unconditional: 20560] , Statistics on independence cache: Total cache size (in pairs): 291, Positive cache size: 273, Positive conditional cache size: 0, Positive unconditional cache size: 273, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 102]: 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 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 101]: 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 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - TimeoutResultAtElement [Line: 103]: 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 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 13ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 582 locations, 58 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: 816.9s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 136.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 21.5s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 590 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 590 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 398 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 238 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4369 IncrementalHoareTripleChecker+Invalid, 5008 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 238 mSolverCounterUnsat, 0 mSDtfsCounter, 4369 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 319 GetRequests, 141 SyntacticMatches, 4 SemanticMatches, 174 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1749 ImplicationChecksByTransitivity, 167.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=494occurred in iteration=11, InterpolantAutomatonStates: 85, 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: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 55.1s InterpolantComputationTime, 243 NumberOfCodeBlocks, 239 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 322 ConstructedInterpolants, 42 QuantifiedInterpolants, 4184 SizeOfPredicates, 30 NumberOfNonLiveVariables, 1962 ConjunctsInSsa, 168 ConjunctsInUnsatCore, 24 InterpolantComputations, 5 PerfectInterpolantSequences, 302/533 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