/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/goblint-regression/06-symbeq_15-list_entry_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 04:45:29,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 04:45:29,446 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 04:45:29,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 04:45:29,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 04:45:29,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 04:45:29,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 04:45:29,473 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 04:45:29,474 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 04:45:29,476 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 04:45:29,477 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 04:45:29,477 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 04:45:29,477 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 04:45:29,478 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 04:45:29,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 04:45:29,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 04:45:29,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 04:45:29,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 04:45:29,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 04:45:29,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 04:45:29,479 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 04:45:29,479 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 04:45:29,480 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 04:45:29,480 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 04:45:29,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 04:45:29,480 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 04:45:29,480 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 04:45:29,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:45:29,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 04:45:29,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 04:45:29,482 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 04:45:29,482 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 04:45:29,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 04:45:29,482 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 04:45:29,482 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 04:45:29,482 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 04:45:29,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 04:45:29,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 04:45:29,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 04:45:29,763 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 04:45:29,764 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 04:45:29,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-08-27 04:45:30,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 04:45:30,990 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 04:45:30,990 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-08-27 04:45:31,006 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbeef1973/cd644ab207234b60a186ff41121c0115/FLAG3d99c667e [2023-08-27 04:45:31,017 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbeef1973/cd644ab207234b60a186ff41121c0115 [2023-08-27 04:45:31,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 04:45:31,022 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 04:45:31,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 04:45:31,023 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 04:45:31,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 04:45:31,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:45:31" (1/1) ... [2023-08-27 04:45:31,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26284aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:45:31, skipping insertion in model container [2023-08-27 04:45:31,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:45:31" (1/1) ... [2023-08-27 04:45:31,070 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 04:45:31,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:45:31,416 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 04:45:31,425 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 04:45:31,426 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 04:45:31,435 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-27 04:45:31,438 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned long [1233] [2023-08-27 04:45:31,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:45:31,488 INFO L206 MainTranslator]: Completed translation [2023-08-27 04:45:31,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:45:31 WrapperNode [2023-08-27 04:45:31,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 04:45:31,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 04:45:31,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 04:45:31,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 04:45:31,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:45:31" (1/1) ... [2023-08-27 04:45:31,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:45:31" (1/1) ... [2023-08-27 04:45:31,520 INFO L138 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2023-08-27 04:45:31,520 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 04:45:31,521 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 04:45:31,521 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 04:45:31,521 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 04:45:31,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:45:31" (1/1) ... [2023-08-27 04:45:31,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:45:31" (1/1) ... [2023-08-27 04:45:31,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:45:31" (1/1) ... [2023-08-27 04:45:31,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:45:31" (1/1) ... [2023-08-27 04:45:31,540 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:45:31" (1/1) ... [2023-08-27 04:45:31,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:45:31" (1/1) ... [2023-08-27 04:45:31,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:45:31" (1/1) ... [2023-08-27 04:45:31,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:45:31" (1/1) ... [2023-08-27 04:45:31,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 04:45:31,545 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 04:45:31,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 04:45:31,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 04:45:31,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:45:31" (1/1) ... [2023-08-27 04:45:31,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:45:31,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 04:45:31,579 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 04:45:31,581 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 04:45:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 04:45:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 04:45:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 04:45:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 04:45:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 04:45:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-27 04:45:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 04:45:31,609 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 04:45:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 04:45:31,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 04:45:31,610 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 04:45:31,737 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 04:45:31,738 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 04:45:31,845 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 04:45:31,849 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 04:45:31,849 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 04:45:31,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:45:31 BoogieIcfgContainer [2023-08-27 04:45:31,851 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 04:45:31,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 04:45:31,864 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 04:45:31,866 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 04:45:31,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 04:45:31" (1/3) ... [2023-08-27 04:45:31,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230ba032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:45:31, skipping insertion in model container [2023-08-27 04:45:31,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:45:31" (2/3) ... [2023-08-27 04:45:31,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230ba032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:45:31, skipping insertion in model container [2023-08-27 04:45:31,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:45:31" (3/3) ... [2023-08-27 04:45:31,872 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2023-08-27 04:45:31,906 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 04:45:31,906 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-27 04:45:31,906 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 04:45:31,950 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 04:45:31,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 131 flow [2023-08-27 04:45:32,016 INFO L124 PetriNetUnfolderBase]: 0/62 cut-off events. [2023-08-27 04:45:32,016 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:45:32,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 0/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-27 04:45:32,019 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 63 transitions, 131 flow [2023-08-27 04:45:32,027 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 62 transitions, 127 flow [2023-08-27 04:45:32,030 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 04:45:32,037 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 62 transitions, 127 flow [2023-08-27 04:45:32,039 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 62 transitions, 127 flow [2023-08-27 04:45:32,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 62 transitions, 127 flow [2023-08-27 04:45:32,055 INFO L124 PetriNetUnfolderBase]: 0/62 cut-off events. [2023-08-27 04:45:32,055 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:45:32,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 0/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-27 04:45:32,056 INFO L119 LiptonReduction]: Number of co-enabled transitions 874 [2023-08-27 04:45:33,628 INFO L134 LiptonReduction]: Checked pairs total: 1235 [2023-08-27 04:45:33,629 INFO L136 LiptonReduction]: Total number of compositions: 56 [2023-08-27 04:45:33,638 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 04:45:33,642 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;@2cb1c8aa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 04:45:33,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-27 04:45:33,644 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 04:45:33,644 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-08-27 04:45:33,644 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:45:33,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:45:33,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 04:45:33,645 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 04:45:33,647 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:45:33,648 INFO L85 PathProgramCache]: Analyzing trace with hash 7180286, now seen corresponding path program 1 times [2023-08-27 04:45:33,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:45:33,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100228492] [2023-08-27 04:45:33,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:45:33,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:45:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:45:34,095 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 04:45:34,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:45:34,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100228492] [2023-08-27 04:45:34,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100228492] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:45:34,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:45:34,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 04:45:34,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814464959] [2023-08-27 04:45:34,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:45:34,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 04:45:34,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:45:34,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 04:45:34,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 04:45:34,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 119 [2023-08-27 04:45:34,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 31 flow. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 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 04:45:34,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:45:34,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 119 [2023-08-27 04:45:34,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:45:34,188 INFO L124 PetriNetUnfolderBase]: 31/76 cut-off events. [2023-08-27 04:45:34,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:45:34,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 76 events. 31/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 246 event pairs, 3 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 148. Up to 44 conditions per place. [2023-08-27 04:45:34,191 INFO L140 encePairwiseOnDemand]: 114/119 looper letters, 19 selfloop transitions, 5 changer transitions 4/28 dead transitions. [2023-08-27 04:45:34,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 28 transitions, 115 flow [2023-08-27 04:45:34,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 04:45:34,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 04:45:34,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 217 transitions. [2023-08-27 04:45:34,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45588235294117646 [2023-08-27 04:45:34,203 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 217 transitions. [2023-08-27 04:45:34,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 217 transitions. [2023-08-27 04:45:34,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:45:34,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 217 transitions. [2023-08-27 04:45:34,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 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 04:45:34,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 04:45:34,228 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 04:45:34,229 INFO L175 Difference]: Start difference. First operand has 18 places, 14 transitions, 31 flow. Second operand 4 states and 217 transitions. [2023-08-27 04:45:34,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 28 transitions, 115 flow [2023-08-27 04:45:34,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 28 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 04:45:34,232 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 54 flow [2023-08-27 04:45:34,234 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2023-08-27 04:45:34,236 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 4 predicate places. [2023-08-27 04:45:34,237 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 54 flow [2023-08-27 04:45:34,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 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 04:45:34,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:45:34,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 04:45:34,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 04:45:34,237 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 04:45:34,238 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:45:34,238 INFO L85 PathProgramCache]: Analyzing trace with hash 7180291, now seen corresponding path program 1 times [2023-08-27 04:45:34,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:45:34,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205639536] [2023-08-27 04:45:34,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:45:34,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:45:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:45:34,450 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 04:45:34,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:45:34,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205639536] [2023-08-27 04:45:34,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205639536] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:45:34,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:45:34,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 04:45:34,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712992427] [2023-08-27 04:45:34,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:45:34,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 04:45:34,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:45:34,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 04:45:34,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 04:45:34,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 119 [2023-08-27 04:45:34,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 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 04:45:34,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:45:34,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 119 [2023-08-27 04:45:34,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:45:34,514 INFO L124 PetriNetUnfolderBase]: 22/58 cut-off events. [2023-08-27 04:45:34,515 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-27 04:45:34,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 58 events. 22/58 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 180 event pairs, 2 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 142. Up to 35 conditions per place. [2023-08-27 04:45:34,515 INFO L140 encePairwiseOnDemand]: 114/119 looper letters, 18 selfloop transitions, 5 changer transitions 2/25 dead transitions. [2023-08-27 04:45:34,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 25 transitions, 122 flow [2023-08-27 04:45:34,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 04:45:34,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 04:45:34,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 214 transitions. [2023-08-27 04:45:34,525 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4495798319327731 [2023-08-27 04:45:34,525 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 214 transitions. [2023-08-27 04:45:34,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 214 transitions. [2023-08-27 04:45:34,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:45:34,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 214 transitions. [2023-08-27 04:45:34,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 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 04:45:34,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 04:45:34,527 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 04:45:34,527 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 54 flow. Second operand 4 states and 214 transitions. [2023-08-27 04:45:34,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 25 transitions, 122 flow [2023-08-27 04:45:34,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 118 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 04:45:34,528 INFO L231 Difference]: Finished difference. Result has 25 places, 16 transitions, 65 flow [2023-08-27 04:45:34,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=65, PETRI_PLACES=25, PETRI_TRANSITIONS=16} [2023-08-27 04:45:34,529 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 7 predicate places. [2023-08-27 04:45:34,529 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 16 transitions, 65 flow [2023-08-27 04:45:34,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 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 04:45:34,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:45:34,529 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 04:45:34,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 04:45:34,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 04:45:34,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:45:34,530 INFO L85 PathProgramCache]: Analyzing trace with hash 7180371, now seen corresponding path program 1 times [2023-08-27 04:45:34,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:45:34,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770809004] [2023-08-27 04:45:34,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:45:34,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:45:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:45:34,697 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 04:45:34,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:45:34,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770809004] [2023-08-27 04:45:34,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770809004] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:45:34,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:45:34,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 04:45:34,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530668650] [2023-08-27 04:45:34,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:45:34,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 04:45:34,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:45:34,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 04:45:34,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 04:45:34,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 119 [2023-08-27 04:45:34,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 16 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 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 04:45:34,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:45:34,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 119 [2023-08-27 04:45:34,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:45:34,754 INFO L124 PetriNetUnfolderBase]: 19/52 cut-off events. [2023-08-27 04:45:34,754 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2023-08-27 04:45:34,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 52 events. 19/52 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 151 event pairs, 3 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 138. Up to 34 conditions per place. [2023-08-27 04:45:34,755 INFO L140 encePairwiseOnDemand]: 114/119 looper letters, 15 selfloop transitions, 6 changer transitions 2/23 dead transitions. [2023-08-27 04:45:34,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 23 transitions, 137 flow [2023-08-27 04:45:34,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 04:45:34,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 04:45:34,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 211 transitions. [2023-08-27 04:45:34,756 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4432773109243697 [2023-08-27 04:45:34,756 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 211 transitions. [2023-08-27 04:45:34,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 211 transitions. [2023-08-27 04:45:34,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:45:34,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 211 transitions. [2023-08-27 04:45:34,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 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 04:45:34,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 04:45:34,758 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 04:45:34,758 INFO L175 Difference]: Start difference. First operand has 25 places, 16 transitions, 65 flow. Second operand 4 states and 211 transitions. [2023-08-27 04:45:34,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 23 transitions, 137 flow [2023-08-27 04:45:34,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 123 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 04:45:34,759 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 85 flow [2023-08-27 04:45:34,759 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=85, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-08-27 04:45:34,760 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 9 predicate places. [2023-08-27 04:45:34,760 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 85 flow [2023-08-27 04:45:34,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 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 04:45:34,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:45:34,760 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 04:45:34,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 04:45:34,760 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 04:45:34,761 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:45:34,761 INFO L85 PathProgramCache]: Analyzing trace with hash 7180389, now seen corresponding path program 1 times [2023-08-27 04:45:34,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:45:34,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11996168] [2023-08-27 04:45:34,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:45:34,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:45:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:45:34,876 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 04:45:34,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:45:34,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11996168] [2023-08-27 04:45:34,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11996168] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:45:34,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:45:34,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 04:45:34,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612113190] [2023-08-27 04:45:34,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:45:34,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 04:45:34,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:45:34,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 04:45:34,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 04:45:34,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 119 [2023-08-27 04:45:34,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 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 04:45:34,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:45:34,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 119 [2023-08-27 04:45:34,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:45:34,925 INFO L124 PetriNetUnfolderBase]: 16/46 cut-off events. [2023-08-27 04:45:34,926 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-08-27 04:45:34,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 46 events. 16/46 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 121 event pairs, 4 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 133. Up to 33 conditions per place. [2023-08-27 04:45:34,927 INFO L140 encePairwiseOnDemand]: 114/119 looper letters, 14 selfloop transitions, 6 changer transitions 2/22 dead transitions. [2023-08-27 04:45:34,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 22 transitions, 142 flow [2023-08-27 04:45:34,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 04:45:34,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 04:45:34,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 210 transitions. [2023-08-27 04:45:34,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4411764705882353 [2023-08-27 04:45:34,929 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 210 transitions. [2023-08-27 04:45:34,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 210 transitions. [2023-08-27 04:45:34,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:45:34,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 210 transitions. [2023-08-27 04:45:34,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 0 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 04:45:34,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 04:45:34,931 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 04:45:34,931 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 85 flow. Second operand 4 states and 210 transitions. [2023-08-27 04:45:34,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 22 transitions, 142 flow [2023-08-27 04:45:34,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 22 transitions, 137 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 04:45:34,932 INFO L231 Difference]: Finished difference. Result has 30 places, 18 transitions, 98 flow [2023-08-27 04:45:34,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=98, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2023-08-27 04:45:34,933 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 12 predicate places. [2023-08-27 04:45:34,933 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 98 flow [2023-08-27 04:45:34,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 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 04:45:34,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:45:34,934 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:45:34,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 04:45:34,934 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 04:45:34,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:45:34,934 INFO L85 PathProgramCache]: Analyzing trace with hash -839865490, now seen corresponding path program 1 times [2023-08-27 04:45:34,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:45:34,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426905583] [2023-08-27 04:45:34,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:45:34,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:45:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:45:35,116 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 04:45:35,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:45:35,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426905583] [2023-08-27 04:45:35,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426905583] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:45:35,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:45:35,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 04:45:35,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804913540] [2023-08-27 04:45:35,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:45:35,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 04:45:35,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:45:35,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 04:45:35,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 04:45:35,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 119 [2023-08-27 04:45:35,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 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 04:45:35,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:45:35,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 119 [2023-08-27 04:45:35,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:45:35,152 INFO L124 PetriNetUnfolderBase]: 12/46 cut-off events. [2023-08-27 04:45:35,153 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2023-08-27 04:45:35,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 46 events. 12/46 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 148 event pairs, 2 based on Foata normal form. 3/49 useless extension candidates. Maximal degree in co-relation 138. Up to 24 conditions per place. [2023-08-27 04:45:35,154 INFO L140 encePairwiseOnDemand]: 114/119 looper letters, 19 selfloop transitions, 5 changer transitions 1/25 dead transitions. [2023-08-27 04:45:35,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 25 transitions, 170 flow [2023-08-27 04:45:35,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 04:45:35,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 04:45:35,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 215 transitions. [2023-08-27 04:45:35,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45168067226890757 [2023-08-27 04:45:35,159 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 215 transitions. [2023-08-27 04:45:35,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 215 transitions. [2023-08-27 04:45:35,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:45:35,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 215 transitions. [2023-08-27 04:45:35,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 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 04:45:35,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 04:45:35,161 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 04:45:35,161 INFO L175 Difference]: Start difference. First operand has 30 places, 18 transitions, 98 flow. Second operand 4 states and 215 transitions. [2023-08-27 04:45:35,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 25 transitions, 170 flow [2023-08-27 04:45:35,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 25 transitions, 158 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 04:45:35,163 INFO L231 Difference]: Finished difference. Result has 31 places, 19 transitions, 108 flow [2023-08-27 04:45:35,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=31, PETRI_TRANSITIONS=19} [2023-08-27 04:45:35,164 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 13 predicate places. [2023-08-27 04:45:35,164 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 19 transitions, 108 flow [2023-08-27 04:45:35,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 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 04:45:35,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:45:35,165 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:45:35,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 04:45:35,165 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 04:45:35,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:45:35,165 INFO L85 PathProgramCache]: Analyzing trace with hash -837703240, now seen corresponding path program 2 times [2023-08-27 04:45:35,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:45:35,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840611092] [2023-08-27 04:45:35,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:45:35,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:45:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:45:35,284 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 04:45:35,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:45:35,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840611092] [2023-08-27 04:45:35,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840611092] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:45:35,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:45:35,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 04:45:35,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65407224] [2023-08-27 04:45:35,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:45:35,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 04:45:35,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:45:35,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 04:45:35,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 04:45:35,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 119 [2023-08-27 04:45:35,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 19 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 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 04:45:35,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:45:35,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 119 [2023-08-27 04:45:35,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:45:35,303 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-08-27 04:45:35,303 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-27 04:45:35,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 18 events. 0/18 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 27 event pairs, 0 based on Foata normal form. 3/21 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-08-27 04:45:35,303 INFO L140 encePairwiseOnDemand]: 116/119 looper letters, 13 selfloop transitions, 3 changer transitions 0/16 dead transitions. [2023-08-27 04:45:35,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 16 transitions, 119 flow [2023-08-27 04:45:35,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 04:45:35,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 04:45:35,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 159 transitions. [2023-08-27 04:45:35,304 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44537815126050423 [2023-08-27 04:45:35,304 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 159 transitions. [2023-08-27 04:45:35,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 159 transitions. [2023-08-27 04:45:35,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:45:35,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 159 transitions. [2023-08-27 04:45:35,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 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 04:45:35,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 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 04:45:35,306 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 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 04:45:35,306 INFO L175 Difference]: Start difference. First operand has 31 places, 19 transitions, 108 flow. Second operand 3 states and 159 transitions. [2023-08-27 04:45:35,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 16 transitions, 119 flow [2023-08-27 04:45:35,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 16 transitions, 109 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-27 04:45:35,307 INFO L231 Difference]: Finished difference. Result has 31 places, 16 transitions, 90 flow [2023-08-27 04:45:35,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=31, PETRI_TRANSITIONS=16} [2023-08-27 04:45:35,307 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 13 predicate places. [2023-08-27 04:45:35,307 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 16 transitions, 90 flow [2023-08-27 04:45:35,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 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 04:45:35,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:45:35,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:45:35,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 04:45:35,308 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 04:45:35,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:45:35,308 INFO L85 PathProgramCache]: Analyzing trace with hash -199279778, now seen corresponding path program 1 times [2023-08-27 04:45:35,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:45:35,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080265156] [2023-08-27 04:45:35,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:45:35,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:45:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:45:35,561 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 04:45:35,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:45:35,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080265156] [2023-08-27 04:45:35,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080265156] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:45:35,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:45:35,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-27 04:45:35,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491010501] [2023-08-27 04:45:35,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:45:35,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 04:45:35,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:45:35,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 04:45:35,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-27 04:45:35,563 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 119 [2023-08-27 04:45:35,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 16 transitions, 90 flow. Second operand has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 0 states have call successors, (0), 0 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 04:45:35,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:45:35,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 119 [2023-08-27 04:45:35,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:45:35,630 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2023-08-27 04:45:35,630 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-27 04:45:35,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 17 events. 0/17 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 21 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2023-08-27 04:45:35,631 INFO L140 encePairwiseOnDemand]: 112/119 looper letters, 8 selfloop transitions, 7 changer transitions 2/17 dead transitions. [2023-08-27 04:45:35,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 17 transitions, 124 flow [2023-08-27 04:45:35,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-27 04:45:35,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-27 04:45:35,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 314 transitions. [2023-08-27 04:45:35,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32983193277310924 [2023-08-27 04:45:35,632 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 314 transitions. [2023-08-27 04:45:35,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 314 transitions. [2023-08-27 04:45:35,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:45:35,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 314 transitions. [2023-08-27 04:45:35,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 39.25) internal successors, (314), 8 states have internal predecessors, (314), 0 states have call successors, (0), 0 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 04:45:35,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 0 states have call successors, (0), 0 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 04:45:35,634 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 0 states have call successors, (0), 0 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 04:45:35,634 INFO L175 Difference]: Start difference. First operand has 31 places, 16 transitions, 90 flow. Second operand 8 states and 314 transitions. [2023-08-27 04:45:35,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 17 transitions, 124 flow [2023-08-27 04:45:35,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 17 transitions, 116 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 04:45:35,636 INFO L231 Difference]: Finished difference. Result has 34 places, 15 transitions, 92 flow [2023-08-27 04:45:35,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=92, PETRI_PLACES=34, PETRI_TRANSITIONS=15} [2023-08-27 04:45:35,636 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 16 predicate places. [2023-08-27 04:45:35,636 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 15 transitions, 92 flow [2023-08-27 04:45:35,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 0 states have call successors, (0), 0 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 04:45:35,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:45:35,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:45:35,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 04:45:35,637 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 04:45:35,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:45:35,637 INFO L85 PathProgramCache]: Analyzing trace with hash -273493884, now seen corresponding path program 1 times [2023-08-27 04:45:35,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:45:35,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750690722] [2023-08-27 04:45:35,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:45:35,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:45:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:45:35,820 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 04:45:35,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:45:35,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750690722] [2023-08-27 04:45:35,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750690722] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:45:35,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:45:35,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-27 04:45:35,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600345757] [2023-08-27 04:45:35,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:45:35,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 04:45:35,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:45:35,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 04:45:35,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-08-27 04:45:35,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 119 [2023-08-27 04:45:35,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 15 transitions, 92 flow. Second operand has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 0 states have call successors, (0), 0 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 04:45:35,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:45:35,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 119 [2023-08-27 04:45:35,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:45:35,880 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-08-27 04:45:35,880 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-08-27 04:45:35,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 15 events. 0/15 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-08-27 04:45:35,880 INFO L140 encePairwiseOnDemand]: 112/119 looper letters, 6 selfloop transitions, 8 changer transitions 1/15 dead transitions. [2023-08-27 04:45:35,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 15 transitions, 120 flow [2023-08-27 04:45:35,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-27 04:45:35,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-27 04:45:35,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 386 transitions. [2023-08-27 04:45:35,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3243697478991597 [2023-08-27 04:45:35,881 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 386 transitions. [2023-08-27 04:45:35,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 386 transitions. [2023-08-27 04:45:35,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:45:35,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 386 transitions. [2023-08-27 04:45:35,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 38.6) internal successors, (386), 10 states have internal predecessors, (386), 0 states have call successors, (0), 0 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 04:45:35,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 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 04:45:35,884 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 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 04:45:35,884 INFO L175 Difference]: Start difference. First operand has 34 places, 15 transitions, 92 flow. Second operand 10 states and 386 transitions. [2023-08-27 04:45:35,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 15 transitions, 120 flow [2023-08-27 04:45:35,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 15 transitions, 95 flow, removed 3 selfloop flow, removed 8 redundant places. [2023-08-27 04:45:35,885 INFO L231 Difference]: Finished difference. Result has 34 places, 14 transitions, 79 flow [2023-08-27 04:45:35,885 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=79, PETRI_PLACES=34, PETRI_TRANSITIONS=14} [2023-08-27 04:45:35,885 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 16 predicate places. [2023-08-27 04:45:35,885 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 14 transitions, 79 flow [2023-08-27 04:45:35,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 0 states have call successors, (0), 0 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 04:45:35,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:45:35,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:45:35,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 04:45:35,886 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 04:45:35,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:45:35,886 INFO L85 PathProgramCache]: Analyzing trace with hash -273493866, now seen corresponding path program 1 times [2023-08-27 04:45:35,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:45:35,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291238115] [2023-08-27 04:45:35,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:45:35,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:45:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:45:36,123 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 04:45:36,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:45:36,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291238115] [2023-08-27 04:45:36,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291238115] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:45:36,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:45:36,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-27 04:45:36,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059852007] [2023-08-27 04:45:36,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:45:36,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 04:45:36,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:45:36,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 04:45:36,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-27 04:45:36,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 119 [2023-08-27 04:45:36,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 14 transitions, 79 flow. Second operand has 8 states, 8 states have (on average 34.0) internal successors, (272), 8 states have internal predecessors, (272), 0 states have call successors, (0), 0 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 04:45:36,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:45:36,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 119 [2023-08-27 04:45:36,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:45:36,178 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2023-08-27 04:45:36,178 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-08-27 04:45:36,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 13 events. 0/13 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/14 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-08-27 04:45:36,178 INFO L140 encePairwiseOnDemand]: 111/119 looper letters, 5 selfloop transitions, 3 changer transitions 5/13 dead transitions. [2023-08-27 04:45:36,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 13 transitions, 101 flow [2023-08-27 04:45:36,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-27 04:45:36,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-27 04:45:36,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 311 transitions. [2023-08-27 04:45:36,179 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2903828197945845 [2023-08-27 04:45:36,179 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 311 transitions. [2023-08-27 04:45:36,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 311 transitions. [2023-08-27 04:45:36,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:45:36,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 311 transitions. [2023-08-27 04:45:36,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 34.55555555555556) internal successors, (311), 9 states have internal predecessors, (311), 0 states have call successors, (0), 0 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 04:45:36,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 119.0) internal successors, (1190), 10 states have internal predecessors, (1190), 0 states have call successors, (0), 0 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 04:45:36,181 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 119.0) internal successors, (1190), 10 states have internal predecessors, (1190), 0 states have call successors, (0), 0 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 04:45:36,181 INFO L175 Difference]: Start difference. First operand has 34 places, 14 transitions, 79 flow. Second operand 9 states and 311 transitions. [2023-08-27 04:45:36,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 13 transitions, 101 flow [2023-08-27 04:45:36,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 13 transitions, 84 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-27 04:45:36,182 INFO L231 Difference]: Finished difference. Result has 32 places, 8 transitions, 39 flow [2023-08-27 04:45:36,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=39, PETRI_PLACES=32, PETRI_TRANSITIONS=8} [2023-08-27 04:45:36,183 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 14 predicate places. [2023-08-27 04:45:36,183 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 8 transitions, 39 flow [2023-08-27 04:45:36,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.0) internal successors, (272), 8 states have internal predecessors, (272), 0 states have call successors, (0), 0 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 04:45:36,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:45:36,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:45:36,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 04:45:36,183 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 04:45:36,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:45:36,184 INFO L85 PathProgramCache]: Analyzing trace with hash -199279783, now seen corresponding path program 1 times [2023-08-27 04:45:36,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:45:36,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000446917] [2023-08-27 04:45:36,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:45:36,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:45:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:45:36,337 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 04:45:36,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:45:36,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000446917] [2023-08-27 04:45:36,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000446917] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:45:36,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:45:36,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-27 04:45:36,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830923201] [2023-08-27 04:45:36,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:45:36,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 04:45:36,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:45:36,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 04:45:36,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-08-27 04:45:36,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 119 [2023-08-27 04:45:36,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 8 transitions, 39 flow. Second operand has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 0 states have call successors, (0), 0 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 04:45:36,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:45:36,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 119 [2023-08-27 04:45:36,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:45:36,383 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2023-08-27 04:45:36,383 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 04:45:36,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 7 events. 0/7 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-08-27 04:45:36,384 INFO L140 encePairwiseOnDemand]: 113/119 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2023-08-27 04:45:36,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 7 transitions, 49 flow [2023-08-27 04:45:36,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 04:45:36,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 04:45:36,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 230 transitions. [2023-08-27 04:45:36,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32212885154061627 [2023-08-27 04:45:36,385 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 230 transitions. [2023-08-27 04:45:36,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 230 transitions. [2023-08-27 04:45:36,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:45:36,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 230 transitions. [2023-08-27 04:45:36,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 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 04:45:36,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 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 04:45:36,387 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 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 04:45:36,387 INFO L175 Difference]: Start difference. First operand has 32 places, 8 transitions, 39 flow. Second operand 6 states and 230 transitions. [2023-08-27 04:45:36,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 7 transitions, 49 flow [2023-08-27 04:45:36,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 7 transitions, 36 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-27 04:45:36,387 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2023-08-27 04:45:36,387 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2023-08-27 04:45:36,388 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2023-08-27 04:45:36,388 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2023-08-27 04:45:36,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 0 states have call successors, (0), 0 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 04:45:36,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-08-27 04:45:36,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-08-27 04:45:36,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-27 04:45:36,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-08-27 04:45:36,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-08-27 04:45:36,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-08-27 04:45:36,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-08-27 04:45:36,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 04:45:36,391 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:45:36,394 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 04:45:36,394 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 04:45:36,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 04:45:36 BasicIcfg [2023-08-27 04:45:36,396 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 04:45:36,396 INFO L158 Benchmark]: Toolchain (without parser) took 5374.82ms. Allocated memory was 337.6MB in the beginning and 488.6MB in the end (delta: 151.0MB). Free memory was 311.2MB in the beginning and 459.3MB in the end (delta: -148.1MB). Peak memory consumption was 5.8MB. Max. memory is 16.0GB. [2023-08-27 04:45:36,396 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 337.6MB. Free memory is still 314.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:45:36,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 465.63ms. Allocated memory is still 337.6MB. Free memory was 311.2MB in the beginning and 274.0MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-27 04:45:36,397 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.02ms. Allocated memory is still 337.6MB. Free memory was 274.0MB in the beginning and 271.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 04:45:36,397 INFO L158 Benchmark]: Boogie Preprocessor took 23.89ms. Allocated memory is still 337.6MB. Free memory was 271.6MB in the beginning and 269.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 04:45:36,397 INFO L158 Benchmark]: RCFGBuilder took 305.34ms. Allocated memory is still 337.6MB. Free memory was 269.9MB in the beginning and 256.9MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 04:45:36,397 INFO L158 Benchmark]: TraceAbstraction took 4532.38ms. Allocated memory was 337.6MB in the beginning and 488.6MB in the end (delta: 151.0MB). Free memory was 314.8MB in the beginning and 459.3MB in the end (delta: -144.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-08-27 04:45:36,398 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 337.6MB. Free memory is still 314.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 465.63ms. Allocated memory is still 337.6MB. Free memory was 311.2MB in the beginning and 274.0MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 31.02ms. Allocated memory is still 337.6MB. Free memory was 274.0MB in the beginning and 271.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.89ms. Allocated memory is still 337.6MB. Free memory was 271.6MB in the beginning and 269.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 305.34ms. Allocated memory is still 337.6MB. Free memory was 269.9MB in the beginning and 256.9MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 4532.38ms. Allocated memory was 337.6MB in the beginning and 488.6MB in the end (delta: 151.0MB). Free memory was 314.8MB in the beginning and 459.3MB in the end (delta: -144.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 1044]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [1044] - GenericResultAtLocation [Line: 1233]: Unsoundness Warning unspecified type, defaulting to int C: unsigned long [1233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 66 PlacesBefore, 18 PlacesAfterwards, 62 TransitionsBefore, 14 TransitionsAfterwards, 874 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 56 TotalNumberOfCompositions, 1235 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 855, independent: 771, independent conditional: 0, independent unconditional: 771, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 497, independent: 478, independent conditional: 0, independent unconditional: 478, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 855, independent: 293, independent conditional: 0, independent unconditional: 293, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 497, unknown conditional: 0, unknown unconditional: 497] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 85 locations, 7 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: 4.4s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 106 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 420 IncrementalHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 420 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=5, InterpolantAutomatonStates: 56, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 04:45:36,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...