/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 -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/28-race_reach_45-escape_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 22:41:44,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 22:41:44,963 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 [2023-08-26 22:41:44,966 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 22:41:44,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 22:41:44,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 22:41:44,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 22:41:44,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 22:41:44,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 22:41:45,001 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 22:41:45,001 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 22:41:45,001 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 22:41:45,001 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 22:41:45,002 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 22:41:45,002 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 22:41:45,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 22:41:45,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 22:41:45,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 22:41:45,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 22:41:45,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 22:41:45,003 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 22:41:45,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 22:41:45,005 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 22:41:45,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 22:41:45,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 22:41:45,005 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 22:41:45,006 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 22:41:45,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:41:45,006 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 22:41:45,006 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 22:41:45,007 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 22:41:45,007 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 22:41:45,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 22:41:45,007 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 22:41:45,007 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 22:41:45,008 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 22:41:45,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 22:41:45,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 22:41:45,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 22:41:45,286 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 22:41:45,287 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 22:41:45,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2023-08-26 22:41:46,247 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 22:41:46,479 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 22:41:46,480 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2023-08-26 22:41:46,491 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35bd570f9/b655e935ec13466a963c3e811c0e06df/FLAGaa022b12e [2023-08-26 22:41:46,502 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35bd570f9/b655e935ec13466a963c3e811c0e06df [2023-08-26 22:41:46,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 22:41:46,507 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 22:41:46,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 22:41:46,509 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 22:41:46,511 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 22:41:46,512 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:41:46" (1/1) ... [2023-08-26 22:41:46,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b721eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:41:46, skipping insertion in model container [2023-08-26 22:41:46,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:41:46" (1/1) ... [2023-08-26 22:41:46,550 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 22:41:46,773 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:41:46,783 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 22:41:46,804 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 22:41:46,806 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 22:41:46,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:41:46,858 INFO L206 MainTranslator]: Completed translation [2023-08-26 22:41:46,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:41:46 WrapperNode [2023-08-26 22:41:46,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 22:41:46,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 22:41:46,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 22:41:46,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 22:41:46,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:41:46" (1/1) ... [2023-08-26 22:41:46,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:41:46" (1/1) ... [2023-08-26 22:41:46,906 INFO L138 Inliner]: procedures = 170, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2023-08-26 22:41:46,906 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 22:41:46,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 22:41:46,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 22:41:46,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 22:41:46,912 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:41:46" (1/1) ... [2023-08-26 22:41:46,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:41:46" (1/1) ... [2023-08-26 22:41:46,918 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:41:46" (1/1) ... [2023-08-26 22:41:46,918 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:41:46" (1/1) ... [2023-08-26 22:41:46,930 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:41:46" (1/1) ... [2023-08-26 22:41:46,932 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:41:46" (1/1) ... [2023-08-26 22:41:46,933 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:41:46" (1/1) ... [2023-08-26 22:41:46,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:41:46" (1/1) ... [2023-08-26 22:41:46,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 22:41:46,936 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 22:41:46,936 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 22:41:46,936 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 22:41:46,936 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:41:46" (1/1) ... [2023-08-26 22:41:46,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:41:46,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:41:46,957 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) [2023-08-26 22:41:46,963 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 [2023-08-26 22:41:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 22:41:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 22:41:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 22:41:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 22:41:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 22:41:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 22:41:46,981 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 22:41:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 22:41:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 22:41:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 22:41:46,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 22:41:46,982 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 22:41:47,067 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 22:41:47,068 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 22:41:47,248 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 22:41:47,255 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 22:41:47,256 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-26 22:41:47,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:41:47 BoogieIcfgContainer [2023-08-26 22:41:47,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 22:41:47,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 22:41:47,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 22:41:47,262 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 22:41:47,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 10:41:46" (1/3) ... [2023-08-26 22:41:47,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153bdfe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:41:47, skipping insertion in model container [2023-08-26 22:41:47,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:41:46" (2/3) ... [2023-08-26 22:41:47,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153bdfe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:41:47, skipping insertion in model container [2023-08-26 22:41:47,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:41:47" (3/3) ... [2023-08-26 22:41:47,264 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2023-08-26 22:41:47,277 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 22:41:47,277 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-26 22:41:47,277 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 22:41:47,336 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 22:41:47,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 114 transitions, 236 flow [2023-08-26 22:41:47,384 INFO L124 PetriNetUnfolderBase]: 10/113 cut-off events. [2023-08-26 22:41:47,384 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 22:41:47,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 113 events. 10/113 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 200 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 67. Up to 3 conditions per place. [2023-08-26 22:41:47,388 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 114 transitions, 236 flow [2023-08-26 22:41:47,390 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 104 transitions, 211 flow [2023-08-26 22:41:47,392 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 22:41:47,398 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 104 transitions, 211 flow [2023-08-26 22:41:47,399 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 104 transitions, 211 flow [2023-08-26 22:41:47,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 104 transitions, 211 flow [2023-08-26 22:41:47,414 INFO L124 PetriNetUnfolderBase]: 10/104 cut-off events. [2023-08-26 22:41:47,414 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:41:47,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 10/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 176 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 67. Up to 3 conditions per place. [2023-08-26 22:41:47,415 INFO L119 LiptonReduction]: Number of co-enabled transitions 2132 [2023-08-26 22:41:50,252 INFO L134 LiptonReduction]: Checked pairs total: 4032 [2023-08-26 22:41:50,253 INFO L136 LiptonReduction]: Total number of compositions: 101 [2023-08-26 22:41:50,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 22:41:50,265 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;@28d12be3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 22:41:50,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-26 22:41:50,267 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 22:41:50,267 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-08-26 22:41:50,267 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:41:50,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:41:50,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 22:41:50,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-26 22:41:50,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:41:50,271 INFO L85 PathProgramCache]: Analyzing trace with hash 416814669, now seen corresponding path program 1 times [2023-08-26 22:41:50,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:41:50,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473546846] [2023-08-26 22:41:50,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:41:50,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:41:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:41:50,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:41:50,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:41:50,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473546846] [2023-08-26 22:41:50,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473546846] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:41:50,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:41:50,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 22:41:50,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724346902] [2023-08-26 22:41:50,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:41:50,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 22:41:50,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:41:50,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 22:41:50,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 22:41:50,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 215 [2023-08-26 22:41:50,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 30 transitions, 63 flow. Second operand has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:50,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:41:50,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 215 [2023-08-26 22:41:50,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:41:50,752 INFO L124 PetriNetUnfolderBase]: 70/184 cut-off events. [2023-08-26 22:41:50,753 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:41:50,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 184 events. 70/184 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 744 event pairs, 7 based on Foata normal form. 6/162 useless extension candidates. Maximal degree in co-relation 349. Up to 99 conditions per place. [2023-08-26 22:41:50,759 INFO L140 encePairwiseOnDemand]: 198/215 looper letters, 28 selfloop transitions, 5 changer transitions 4/39 dead transitions. [2023-08-26 22:41:50,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 39 transitions, 155 flow [2023-08-26 22:41:50,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 22:41:50,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 22:41:50,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 408 transitions. [2023-08-26 22:41:50,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37953488372093025 [2023-08-26 22:41:50,770 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 408 transitions. [2023-08-26 22:41:50,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 408 transitions. [2023-08-26 22:41:50,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:41:50,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 408 transitions. [2023-08-26 22:41:50,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.6) internal successors, (408), 5 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:50,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:50,781 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:50,782 INFO L175 Difference]: Start difference. First operand has 26 places, 30 transitions, 63 flow. Second operand 5 states and 408 transitions. [2023-08-26 22:41:50,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 39 transitions, 155 flow [2023-08-26 22:41:50,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 39 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 22:41:50,785 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 72 flow [2023-08-26 22:41:50,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=72, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2023-08-26 22:41:50,788 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2023-08-26 22:41:50,788 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 72 flow [2023-08-26 22:41:50,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:50,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:41:50,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 22:41:50,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 22:41:50,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-26 22:41:50,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:41:50,789 INFO L85 PathProgramCache]: Analyzing trace with hash 574661934, now seen corresponding path program 1 times [2023-08-26 22:41:50,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:41:50,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029926450] [2023-08-26 22:41:50,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:41:50,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:41:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:41:50,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:41:50,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:41:50,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029926450] [2023-08-26 22:41:50,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029926450] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:41:50,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:41:50,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 22:41:50,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682360644] [2023-08-26 22:41:50,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:41:50,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 22:41:50,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:41:50,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 22:41:50,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-26 22:41:50,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 215 [2023-08-26 22:41:50,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 72 flow. Second operand has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:50,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:41:50,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 215 [2023-08-26 22:41:50,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:41:51,086 INFO L124 PetriNetUnfolderBase]: 59/162 cut-off events. [2023-08-26 22:41:51,087 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-08-26 22:41:51,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 162 events. 59/162 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 627 event pairs, 3 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 368. Up to 47 conditions per place. [2023-08-26 22:41:51,090 INFO L140 encePairwiseOnDemand]: 208/215 looper letters, 28 selfloop transitions, 6 changer transitions 8/44 dead transitions. [2023-08-26 22:41:51,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 44 transitions, 212 flow [2023-08-26 22:41:51,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 22:41:51,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 22:41:51,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 534 transitions. [2023-08-26 22:41:51,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3548172757475083 [2023-08-26 22:41:51,095 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 534 transitions. [2023-08-26 22:41:51,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 534 transitions. [2023-08-26 22:41:51,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:41:51,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 534 transitions. [2023-08-26 22:41:51,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 76.28571428571429) internal successors, (534), 7 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:51,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 215.0) internal successors, (1720), 8 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:51,104 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 215.0) internal successors, (1720), 8 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:51,104 INFO L175 Difference]: Start difference. First operand has 31 places, 21 transitions, 72 flow. Second operand 7 states and 534 transitions. [2023-08-26 22:41:51,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 44 transitions, 212 flow [2023-08-26 22:41:51,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 44 transitions, 204 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 22:41:51,106 INFO L231 Difference]: Finished difference. Result has 33 places, 20 transitions, 75 flow [2023-08-26 22:41:51,107 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=75, PETRI_PLACES=33, PETRI_TRANSITIONS=20} [2023-08-26 22:41:51,107 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-08-26 22:41:51,107 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 20 transitions, 75 flow [2023-08-26 22:41:51,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:51,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:41:51,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 22:41:51,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 22:41:51,108 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-26 22:41:51,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:41:51,111 INFO L85 PathProgramCache]: Analyzing trace with hash 574661933, now seen corresponding path program 1 times [2023-08-26 22:41:51,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:41:51,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401504342] [2023-08-26 22:41:51,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:41:51,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:41:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:41:51,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:41:51,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:41:51,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401504342] [2023-08-26 22:41:51,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401504342] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:41:51,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:41:51,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 22:41:51,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856519154] [2023-08-26 22:41:51,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:41:51,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:41:51,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:41:51,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:41:51,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:41:51,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 215 [2023-08-26 22:41:51,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:51,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:41:51,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 215 [2023-08-26 22:41:51,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:41:51,227 INFO L124 PetriNetUnfolderBase]: 45/123 cut-off events. [2023-08-26 22:41:51,227 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2023-08-26 22:41:51,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 123 events. 45/123 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 423 event pairs, 21 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 299. Up to 86 conditions per place. [2023-08-26 22:41:51,228 INFO L140 encePairwiseOnDemand]: 213/215 looper letters, 14 selfloop transitions, 1 changer transitions 7/23 dead transitions. [2023-08-26 22:41:51,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 23 transitions, 123 flow [2023-08-26 22:41:51,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:41:51,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:41:51,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2023-08-26 22:41:51,229 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3829457364341085 [2023-08-26 22:41:51,229 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 247 transitions. [2023-08-26 22:41:51,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 247 transitions. [2023-08-26 22:41:51,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:41:51,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 247 transitions. [2023-08-26 22:41:51,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:51,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:51,231 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:51,231 INFO L175 Difference]: Start difference. First operand has 33 places, 20 transitions, 75 flow. Second operand 3 states and 247 transitions. [2023-08-26 22:41:51,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 23 transitions, 123 flow [2023-08-26 22:41:51,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 107 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-26 22:41:51,233 INFO L231 Difference]: Finished difference. Result has 28 places, 14 transitions, 44 flow [2023-08-26 22:41:51,233 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=28, PETRI_TRANSITIONS=14} [2023-08-26 22:41:51,234 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2023-08-26 22:41:51,236 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 14 transitions, 44 flow [2023-08-26 22:41:51,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:51,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:41:51,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 22:41:51,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 22:41:51,237 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-26 22:41:51,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:41:51,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1644037528, now seen corresponding path program 1 times [2023-08-26 22:41:51,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:41:51,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274675243] [2023-08-26 22:41:51,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:41:51,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:41:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:41:51,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:41:51,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:41:51,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274675243] [2023-08-26 22:41:51,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274675243] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:41:51,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:41:51,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 22:41:51,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341114814] [2023-08-26 22:41:51,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:41:51,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:41:51,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:41:51,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:41:51,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:41:51,295 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 215 [2023-08-26 22:41:51,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 14 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:51,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:41:51,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 215 [2023-08-26 22:41:51,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:41:51,324 INFO L124 PetriNetUnfolderBase]: 10/41 cut-off events. [2023-08-26 22:41:51,324 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-26 22:41:51,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 41 events. 10/41 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 4 based on Foata normal form. 7/48 useless extension candidates. Maximal degree in co-relation 93. Up to 21 conditions per place. [2023-08-26 22:41:51,325 INFO L140 encePairwiseOnDemand]: 209/215 looper letters, 10 selfloop transitions, 6 changer transitions 1/18 dead transitions. [2023-08-26 22:41:51,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 18 transitions, 92 flow [2023-08-26 22:41:51,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:41:51,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:41:51,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2023-08-26 22:41:51,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4263565891472868 [2023-08-26 22:41:51,326 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2023-08-26 22:41:51,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2023-08-26 22:41:51,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:41:51,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2023-08-26 22:41:51,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:51,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:51,328 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:51,328 INFO L175 Difference]: Start difference. First operand has 28 places, 14 transitions, 44 flow. Second operand 3 states and 275 transitions. [2023-08-26 22:41:51,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 18 transitions, 92 flow [2023-08-26 22:41:51,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 87 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 22:41:51,329 INFO L231 Difference]: Finished difference. Result has 23 places, 15 transitions, 61 flow [2023-08-26 22:41:51,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=23, PETRI_TRANSITIONS=15} [2023-08-26 22:41:51,331 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places. [2023-08-26 22:41:51,331 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 15 transitions, 61 flow [2023-08-26 22:41:51,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:41:51,331 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:41:51,331 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 22:41:51,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 22:41:51,332 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-26 22:41:51,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:41:51,332 INFO L85 PathProgramCache]: Analyzing trace with hash -573234659, now seen corresponding path program 1 times [2023-08-26 22:41:51,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:41:51,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618185412] [2023-08-26 22:41:51,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:41:51,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:41:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 22:41:51,351 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 22:41:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 22:41:51,378 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 22:41:51,378 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 22:41:51,379 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 10 remaining) [2023-08-26 22:41:51,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2023-08-26 22:41:51,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-08-26 22:41:51,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-08-26 22:41:51,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2023-08-26 22:41:51,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2023-08-26 22:41:51,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-08-26 22:41:51,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-08-26 22:41:51,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-08-26 22:41:51,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-08-26 22:41:51,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 22:41:51,381 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-26 22:41:51,385 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 22:41:51,385 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 22:41:51,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 10:41:51 BasicIcfg [2023-08-26 22:41:51,408 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 22:41:51,408 INFO L158 Benchmark]: Toolchain (without parser) took 4901.69ms. Allocated memory was 385.9MB in the beginning and 484.4MB in the end (delta: 98.6MB). Free memory was 361.0MB in the beginning and 286.2MB in the end (delta: 74.9MB). Peak memory consumption was 175.0MB. Max. memory is 16.0GB. [2023-08-26 22:41:51,409 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 385.9MB. Free memory is still 363.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 22:41:51,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.73ms. Allocated memory is still 385.9MB. Free memory was 361.0MB in the beginning and 341.1MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 22:41:51,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.91ms. Allocated memory is still 385.9MB. Free memory was 341.1MB in the beginning and 339.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 22:41:51,413 INFO L158 Benchmark]: Boogie Preprocessor took 28.75ms. Allocated memory is still 385.9MB. Free memory was 339.1MB in the beginning and 337.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 22:41:51,413 INFO L158 Benchmark]: RCFGBuilder took 322.38ms. Allocated memory is still 385.9MB. Free memory was 337.5MB in the beginning and 322.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-26 22:41:51,413 INFO L158 Benchmark]: TraceAbstraction took 4148.49ms. Allocated memory was 385.9MB in the beginning and 484.4MB in the end (delta: 98.6MB). Free memory was 321.9MB in the beginning and 286.2MB in the end (delta: 35.7MB). Peak memory consumption was 137.2MB. Max. memory is 16.0GB. [2023-08-26 22:41:51,414 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 385.9MB. Free memory is still 363.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 349.73ms. Allocated memory is still 385.9MB. Free memory was 361.0MB in the beginning and 341.1MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.91ms. Allocated memory is still 385.9MB. Free memory was 341.1MB in the beginning and 339.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.75ms. Allocated memory is still 385.9MB. Free memory was 339.1MB in the beginning and 337.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 322.38ms. Allocated memory is still 385.9MB. Free memory was 337.5MB in the beginning and 322.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 4148.49ms. Allocated memory was 385.9MB in the beginning and 484.4MB in the end (delta: 98.6MB). Free memory was 321.9MB in the beginning and 286.2MB in the end (delta: 35.7MB). Peak memory consumption was 137.2MB. 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] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 98 PlacesBefore, 26 PlacesAfterwards, 104 TransitionsBefore, 30 TransitionsAfterwards, 2132 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 101 TotalNumberOfCompositions, 4032 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2087, independent: 1947, independent conditional: 0, independent unconditional: 1947, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1263, independent: 1219, independent conditional: 0, independent unconditional: 1219, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2087, independent: 728, independent conditional: 0, independent unconditional: 728, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 1263, unknown conditional: 0, unknown unconditional: 1263] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 46, Positive conditional cache size: 0, Positive unconditional cache size: 46, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 690]: assertion can be violated assertion can be violated We found a FailurePath: [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L707] 0 pthread_t id; [L708] 0 int i = 0; [L709] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [__global_lock={3:0}, arg={6:0}, i={6:0}, id={7:0}, mutex1={4:0}, mutex2={5:0}, pthread_create(&id, ((void *)0), t_fun, (void *) &i)=-1] [L700] 1 int *p = (int *) arg; [L702] EXPR 1 \read(*p) [L702] 1 (*p)++ VAL [(*p)++=0, \read(*p)=0, __global_lock={3:0}, arg={6:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L711] EXPR 0 \read(i) [L711] CALL 0 __VERIFIER_assert((i) == 0) [L691] COND TRUE 0 !(cond) [L691] CALL 0 reach_error() [L690] COND FALSE 0 !(0) [L690] 0 __assert_fail ("0", "racemacros.h", 9, __extension__ __PRETTY_FUNCTION__) VAL [__global_lock={3:0}, arg={6:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] - UnprovableResult [Line: 709]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 142 locations, 10 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: 4.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 259 IncrementalHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 1 mSDtfsCounter, 259 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 0.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-26 22:41:51,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...