/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_79-equ_racefree-overflow.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 22:47:46,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 22:47:46,923 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 22:47:46,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 22:47:46,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 22:47:46,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 22:47:46,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 22:47:46,962 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 22:47:46,963 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 22:47:46,966 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 22:47:46,967 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 22:47:46,967 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 22:47:46,967 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 22:47:46,969 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 22:47:46,969 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 22:47:46,969 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 22:47:46,969 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 22:47:46,970 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 22:47:46,970 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 22:47:46,970 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 22:47:46,970 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 22:47:46,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 22:47:46,971 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 22:47:46,972 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 22:47:46,972 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 22:47:46,973 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 22:47:46,973 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 22:47:46,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:47:46,973 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 22:47:46,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 22:47:46,975 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 22:47:46,975 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 22:47:46,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 22:47:46,975 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 22:47:46,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 22:47:46,976 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 22:47:47,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 22:47:47,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 22:47:47,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 22:47:47,347 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 22:47:47,348 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 22:47:47,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree-overflow.i [2023-08-26 22:47:48,481 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 22:47:48,785 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 22:47:48,786 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree-overflow.i [2023-08-26 22:47:48,802 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a24dd7c0/55e663e496e1443b8c4f099f70521b61/FLAGbea822925 [2023-08-26 22:47:48,814 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a24dd7c0/55e663e496e1443b8c4f099f70521b61 [2023-08-26 22:47:48,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 22:47:48,818 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 22:47:48,818 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 22:47:48,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 22:47:48,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 22:47:48,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:47:48" (1/1) ... [2023-08-26 22:47:48,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a63545c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:47:48, skipping insertion in model container [2023-08-26 22:47:48,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:47:48" (1/1) ... [2023-08-26 22:47:48,885 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 22:47:49,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:47:49,392 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 22:47:49,420 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 22:47:49,422 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 22:47:49,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:47:49,528 INFO L206 MainTranslator]: Completed translation [2023-08-26 22:47:49,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:47:49 WrapperNode [2023-08-26 22:47:49,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 22:47:49,530 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 22:47:49,530 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 22:47:49,530 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 22:47:49,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:47:49" (1/1) ... [2023-08-26 22:47:49,562 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:47:49" (1/1) ... [2023-08-26 22:47:49,598 INFO L138 Inliner]: procedures = 271, calls = 57, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 225 [2023-08-26 22:47:49,598 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 22:47:49,599 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 22:47:49,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 22:47:49,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 22:47:49,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:47:49" (1/1) ... [2023-08-26 22:47:49,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:47:49" (1/1) ... [2023-08-26 22:47:49,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:47:49" (1/1) ... [2023-08-26 22:47:49,620 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:47:49" (1/1) ... [2023-08-26 22:47:49,626 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:47:49" (1/1) ... [2023-08-26 22:47:49,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:47:49" (1/1) ... [2023-08-26 22:47:49,633 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:47:49" (1/1) ... [2023-08-26 22:47:49,634 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:47:49" (1/1) ... [2023-08-26 22:47:49,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 22:47:49,638 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 22:47:49,638 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 22:47:49,638 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 22:47:49,638 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:47:49" (1/1) ... [2023-08-26 22:47:49,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:47:49,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:47:49,669 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 22:47:49,694 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 22:47:49,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 22:47:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 22:47:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 22:47:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 22:47:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 22:47:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 22:47:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 22:47:49,708 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 22:47:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 22:47:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 22:47:49,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 22:47:49,710 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 22:47:49,825 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 22:47:49,826 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 22:47:50,153 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 22:47:50,162 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 22:47:50,163 INFO L302 CfgBuilder]: Removed 22 assume(true) statements. [2023-08-26 22:47:50,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:47:50 BoogieIcfgContainer [2023-08-26 22:47:50,165 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 22:47:50,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 22:47:50,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 22:47:50,170 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 22:47:50,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 10:47:48" (1/3) ... [2023-08-26 22:47:50,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6885b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:47:50, skipping insertion in model container [2023-08-26 22:47:50,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:47:49" (2/3) ... [2023-08-26 22:47:50,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6885b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:47:50, skipping insertion in model container [2023-08-26 22:47:50,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:47:50" (3/3) ... [2023-08-26 22:47:50,172 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree-overflow.i [2023-08-26 22:47:50,191 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 22:47:50,191 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-26 22:47:50,191 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 22:47:50,272 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 22:47:50,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 240 transitions, 488 flow [2023-08-26 22:47:50,411 INFO L124 PetriNetUnfolderBase]: 45/324 cut-off events. [2023-08-26 22:47:50,412 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 22:47:50,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 324 events. 45/324 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1090 event pairs, 0 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 162. Up to 8 conditions per place. [2023-08-26 22:47:50,426 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 240 transitions, 488 flow [2023-08-26 22:47:50,432 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 237 transitions, 482 flow [2023-08-26 22:47:50,435 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 22:47:50,443 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 237 transitions, 482 flow [2023-08-26 22:47:50,445 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 237 transitions, 482 flow [2023-08-26 22:47:50,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 237 transitions, 482 flow [2023-08-26 22:47:50,491 INFO L124 PetriNetUnfolderBase]: 44/321 cut-off events. [2023-08-26 22:47:50,491 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 22:47:50,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 321 events. 44/321 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1093 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 162. Up to 8 conditions per place. [2023-08-26 22:47:50,499 INFO L119 LiptonReduction]: Number of co-enabled transitions 12972 [2023-08-26 22:47:58,940 INFO L134 LiptonReduction]: Checked pairs total: 28078 [2023-08-26 22:47:58,941 INFO L136 LiptonReduction]: Total number of compositions: 243 [2023-08-26 22:47:58,955 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 22:47:58,960 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;@23487d3c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 22:47:58,961 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-08-26 22:47:58,962 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 22:47:58,962 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 22:47:58,962 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:47:58,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:47:58,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 22:47:58,963 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-08-26 22:47:58,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:47:58,968 INFO L85 PathProgramCache]: Analyzing trace with hash 940, now seen corresponding path program 1 times [2023-08-26 22:47:58,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:47:58,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431261388] [2023-08-26 22:47:58,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:47:58,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:47:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:47:59,062 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 22:47:59,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:47:59,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431261388] [2023-08-26 22:47:59,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431261388] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:47:59,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:47:59,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 22:47:59,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92551741] [2023-08-26 22:47:59,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:47:59,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 22:47:59,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:47:59,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 22:47:59,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 22:47:59,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 483 [2023-08-26 22:47:59,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 81 transitions, 170 flow. Second operand has 2 states, 2 states have (on average 210.5) internal successors, (421), 2 states have internal predecessors, (421), 0 states have call successors, (0), 0 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 22:47:59,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:47:59,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 483 [2023-08-26 22:47:59,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:47:59,297 INFO L124 PetriNetUnfolderBase]: 494/1066 cut-off events. [2023-08-26 22:47:59,297 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 22:47:59,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2044 conditions, 1066 events. 494/1066 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 6004 event pairs, 450 based on Foata normal form. 138/865 useless extension candidates. Maximal degree in co-relation 1977. Up to 972 conditions per place. [2023-08-26 22:47:59,307 INFO L140 encePairwiseOnDemand]: 459/483 looper letters, 49 selfloop transitions, 0 changer transitions 0/57 dead transitions. [2023-08-26 22:47:59,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 57 transitions, 220 flow [2023-08-26 22:47:59,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 22:47:59,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 22:47:59,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 493 transitions. [2023-08-26 22:47:59,325 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.510351966873706 [2023-08-26 22:47:59,326 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 493 transitions. [2023-08-26 22:47:59,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 493 transitions. [2023-08-26 22:47:59,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:47:59,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 493 transitions. [2023-08-26 22:47:59,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 246.5) internal successors, (493), 2 states have internal predecessors, (493), 0 states have call successors, (0), 0 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 22:47:59,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 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 22:47:59,343 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 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 22:47:59,344 INFO L175 Difference]: Start difference. First operand has 61 places, 81 transitions, 170 flow. Second operand 2 states and 493 transitions. [2023-08-26 22:47:59,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 57 transitions, 220 flow [2023-08-26 22:47:59,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 57 transitions, 220 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 22:47:59,350 INFO L231 Difference]: Finished difference. Result has 59 places, 57 transitions, 122 flow [2023-08-26 22:47:59,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=122, PETRI_PLACES=59, PETRI_TRANSITIONS=57} [2023-08-26 22:47:59,357 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -2 predicate places. [2023-08-26 22:47:59,358 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 122 flow [2023-08-26 22:47:59,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 210.5) internal successors, (421), 2 states have internal predecessors, (421), 0 states have call successors, (0), 0 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 22:47:59,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:47:59,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 22:47:59,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 22:47:59,359 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-08-26 22:47:59,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:47:59,360 INFO L85 PathProgramCache]: Analyzing trace with hash 936, now seen corresponding path program 1 times [2023-08-26 22:47:59,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:47:59,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569829011] [2023-08-26 22:47:59,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:47:59,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:47:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 22:47:59,420 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 22:47:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 22:47:59,487 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 22:47:59,487 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 22:47:59,489 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2023-08-26 22:47:59,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2023-08-26 22:47:59,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2023-08-26 22:47:59,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2023-08-26 22:47:59,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2023-08-26 22:47:59,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2023-08-26 22:47:59,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2023-08-26 22:47:59,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2023-08-26 22:47:59,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2023-08-26 22:47:59,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2023-08-26 22:47:59,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2023-08-26 22:47:59,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2023-08-26 22:47:59,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONASSERT (11 of 24 remaining) [2023-08-26 22:47:59,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 24 remaining) [2023-08-26 22:47:59,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2023-08-26 22:47:59,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2023-08-26 22:47:59,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2023-08-26 22:47:59,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2023-08-26 22:47:59,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONASSERT (5 of 24 remaining) [2023-08-26 22:47:59,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2023-08-26 22:47:59,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2023-08-26 22:47:59,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2023-08-26 22:47:59,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2023-08-26 22:47:59,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONASSERT (0 of 24 remaining) [2023-08-26 22:47:59,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 22:47:59,494 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-26 22:47:59,499 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 22:47:59,499 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 22:47:59,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 10:47:59 BasicIcfg [2023-08-26 22:47:59,513 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 22:47:59,514 INFO L158 Benchmark]: Toolchain (without parser) took 10695.77ms. Allocated memory was 381.7MB in the beginning and 559.9MB in the end (delta: 178.3MB). Free memory was 355.9MB in the beginning and 342.9MB in the end (delta: 13.0MB). Peak memory consumption was 193.5MB. Max. memory is 16.0GB. [2023-08-26 22:47:59,514 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 381.7MB. Free memory is still 358.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 22:47:59,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 710.36ms. Allocated memory is still 381.7MB. Free memory was 355.5MB in the beginning and 326.4MB in the end (delta: 29.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-26 22:47:59,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.74ms. Allocated memory is still 381.7MB. Free memory was 326.4MB in the beginning and 323.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 22:47:59,515 INFO L158 Benchmark]: Boogie Preprocessor took 37.54ms. Allocated memory is still 381.7MB. Free memory was 323.8MB in the beginning and 321.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 22:47:59,516 INFO L158 Benchmark]: RCFGBuilder took 527.70ms. Allocated memory is still 381.7MB. Free memory was 321.7MB in the beginning and 349.8MB in the end (delta: -28.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-26 22:47:59,516 INFO L158 Benchmark]: TraceAbstraction took 9346.00ms. Allocated memory was 381.7MB in the beginning and 559.9MB in the end (delta: 178.3MB). Free memory was 349.8MB in the beginning and 342.9MB in the end (delta: 6.9MB). Peak memory consumption was 185.1MB. Max. memory is 16.0GB. [2023-08-26 22:47:59,518 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 381.7MB. Free memory is still 358.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 710.36ms. Allocated memory is still 381.7MB. Free memory was 355.5MB in the beginning and 326.4MB in the end (delta: 29.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 68.74ms. Allocated memory is still 381.7MB. Free memory was 326.4MB in the beginning and 323.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 37.54ms. Allocated memory is still 381.7MB. Free memory was 323.8MB in the beginning and 321.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 527.70ms. Allocated memory is still 381.7MB. Free memory was 321.7MB in the beginning and 349.8MB in the end (delta: -28.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 9346.00ms. Allocated memory was 381.7MB in the beginning and 559.9MB in the end (delta: 178.3MB). Free memory was 349.8MB in the beginning and 342.9MB in the end (delta: 6.9MB). Peak memory consumption was 185.1MB. 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: 8.5s, 211 PlacesBefore, 61 PlacesAfterwards, 237 TransitionsBefore, 81 TransitionsAfterwards, 12972 CoEnabledTransitionPairs, 8 FixpointIterations, 90 TrivialSequentialCompositions, 124 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 19 ConcurrentYvCompositions, 6 ChoiceCompositions, 243 TotalNumberOfCompositions, 28078 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12548, independent: 12088, independent conditional: 0, independent unconditional: 12088, dependent: 460, dependent conditional: 0, dependent unconditional: 460, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6924, independent: 6828, independent conditional: 0, independent unconditional: 6828, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12548, independent: 5260, independent conditional: 0, independent unconditional: 5260, dependent: 364, dependent conditional: 0, dependent unconditional: 364, unknown: 6924, unknown conditional: 0, unknown unconditional: 6924] , Statistics on independence cache: Total cache size (in pairs): 355, Positive cache size: 311, Positive conditional cache size: 0, Positive unconditional cache size: 311, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1026]: integer overflow possible integer overflow possible We found a FailurePath: [L1004] pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1006-L1010] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L1020] int x = __VERIFIER_nondet_int(); [L1021] struct s *s; [L1022] int *d; [L1023] pthread_mutex_t *m; [L1024] COND TRUE \read(x) [L1025] s = &A [L1026] x++ VAL [A={4:0}, B={5:0}, __global_lock={3:0}, s={4:0}, x++=2147483647, x=2147483647] - UnprovableResult [Line: 1026]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 998]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1033]: 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: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 998]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 268 locations, 24 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: 9.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 22:47:59,544 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...