/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_78-equ_racing-overflow.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 11:55:07,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 11:55:07,407 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 11:55:07,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 11:55:07,414 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 11:55:07,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 11:55:07,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 11:55:07,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 11:55:07,443 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 11:55:07,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 11:55:07,446 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 11:55:07,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 11:55:07,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 11:55:07,447 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 11:55:07,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 11:55:07,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 11:55:07,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 11:55:07,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 11:55:07,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 11:55:07,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 11:55:07,448 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 11:55:07,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 11:55:07,449 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 11:55:07,450 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 11:55:07,450 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 11:55:07,450 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 11:55:07,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 11:55:07,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:55:07,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 11:55:07,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 11:55:07,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 11:55:07,451 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 11:55:07,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 11:55:07,452 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 11:55:07,452 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 11:55:07,452 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 11:55:07,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 11:55:07,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 11:55:07,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 11:55:07,730 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 11:55:07,730 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 11:55:07,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_78-equ_racing-overflow.i [2023-08-27 11:55:08,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 11:55:09,090 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 11:55:09,091 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_78-equ_racing-overflow.i [2023-08-27 11:55:09,110 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3963b2d92/a6e9372ae2f74b7d9ed785b72732931a/FLAG6f47c78e5 [2023-08-27 11:55:09,123 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3963b2d92/a6e9372ae2f74b7d9ed785b72732931a [2023-08-27 11:55:09,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 11:55:09,126 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 11:55:09,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 11:55:09,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 11:55:09,128 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 11:55:09,129 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:55:09" (1/1) ... [2023-08-27 11:55:09,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8041df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:55:09, skipping insertion in model container [2023-08-27 11:55:09,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:55:09" (1/1) ... [2023-08-27 11:55:09,160 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 11:55:09,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:55:09,565 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 11:55:09,587 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 11:55:09,588 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 11:55:09,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:55:09,680 INFO L206 MainTranslator]: Completed translation [2023-08-27 11:55:09,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:55:09 WrapperNode [2023-08-27 11:55:09,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 11:55:09,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 11:55:09,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 11:55:09,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 11:55:09,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:55:09" (1/1) ... [2023-08-27 11:55:09,716 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:55:09" (1/1) ... [2023-08-27 11:55:09,746 INFO L138 Inliner]: procedures = 271, calls = 57, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 225 [2023-08-27 11:55:09,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 11:55:09,747 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 11:55:09,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 11:55:09,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 11:55:09,756 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:55:09" (1/1) ... [2023-08-27 11:55:09,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:55:09" (1/1) ... [2023-08-27 11:55:09,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:55:09" (1/1) ... [2023-08-27 11:55:09,770 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:55:09" (1/1) ... [2023-08-27 11:55:09,776 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:55:09" (1/1) ... [2023-08-27 11:55:09,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:55:09" (1/1) ... [2023-08-27 11:55:09,780 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:55:09" (1/1) ... [2023-08-27 11:55:09,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:55:09" (1/1) ... [2023-08-27 11:55:09,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 11:55:09,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 11:55:09,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 11:55:09,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 11:55:09,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:55:09" (1/1) ... [2023-08-27 11:55:09,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:55:09,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 11:55:09,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 11:55:09,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 11:55:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 11:55:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 11:55:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 11:55:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 11:55:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 11:55:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 11:55:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 11:55:09,884 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 11:55:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 11:55:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 11:55:09,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 11:55:09,885 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 11:55:10,006 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 11:55:10,008 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 11:55:10,292 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 11:55:10,309 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 11:55:10,309 INFO L302 CfgBuilder]: Removed 22 assume(true) statements. [2023-08-27 11:55:10,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:55:10 BoogieIcfgContainer [2023-08-27 11:55:10,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 11:55:10,312 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 11:55:10,312 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 11:55:10,314 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 11:55:10,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:55:09" (1/3) ... [2023-08-27 11:55:10,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd2ddfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:55:10, skipping insertion in model container [2023-08-27 11:55:10,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:55:09" (2/3) ... [2023-08-27 11:55:10,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd2ddfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:55:10, skipping insertion in model container [2023-08-27 11:55:10,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:55:10" (3/3) ... [2023-08-27 11:55:10,315 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_78-equ_racing-overflow.i [2023-08-27 11:55:10,326 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 11:55:10,326 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-27 11:55:10,326 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 11:55:10,378 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-27 11:55:10,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 240 transitions, 488 flow [2023-08-27 11:55:10,479 INFO L124 PetriNetUnfolderBase]: 45/324 cut-off events. [2023-08-27 11:55:10,479 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 11:55:10,490 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. [2023-08-27 11:55:10,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 240 transitions, 488 flow [2023-08-27 11:55:10,497 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 237 transitions, 482 flow [2023-08-27 11:55:10,499 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 11:55:10,504 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 237 transitions, 482 flow [2023-08-27 11:55:10,506 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 237 transitions, 482 flow [2023-08-27 11:55:10,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 237 transitions, 482 flow [2023-08-27 11:55:10,545 INFO L124 PetriNetUnfolderBase]: 44/321 cut-off events. [2023-08-27 11:55:10,545 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 11:55:10,546 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. [2023-08-27 11:55:10,550 INFO L119 LiptonReduction]: Number of co-enabled transitions 12972 [2023-08-27 11:55:17,399 INFO L134 LiptonReduction]: Checked pairs total: 28078 [2023-08-27 11:55:17,399 INFO L136 LiptonReduction]: Total number of compositions: 243 [2023-08-27 11:55:17,425 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 11:55:17,446 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;@49651ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 11:55:17,446 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-08-27 11:55:17,447 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 11:55:17,448 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-27 11:55:17,448 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:55:17,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:55:17,448 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-27 11:55:17,449 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-27 11:55:17,453 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:55:17,453 INFO L85 PathProgramCache]: Analyzing trace with hash 940, now seen corresponding path program 1 times [2023-08-27 11:55:17,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:55:17,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41051624] [2023-08-27 11:55:17,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:55:17,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:55:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:55:17,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:55:17,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:55:17,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41051624] [2023-08-27 11:55:17,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41051624] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:55:17,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:55:17,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-27 11:55:17,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908420985] [2023-08-27 11:55:17,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:55:17,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-27 11:55:17,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:55:17,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-27 11:55:17,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-27 11:55:17,573 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 483 [2023-08-27 11:55:17,577 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) [2023-08-27 11:55:17,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:55:17,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 483 [2023-08-27 11:55:17,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:55:17,732 INFO L124 PetriNetUnfolderBase]: 494/1066 cut-off events. [2023-08-27 11:55:17,732 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 11:55:17,735 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. [2023-08-27 11:55:17,739 INFO L140 encePairwiseOnDemand]: 459/483 looper letters, 49 selfloop transitions, 0 changer transitions 0/57 dead transitions. [2023-08-27 11:55:17,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 57 transitions, 220 flow [2023-08-27 11:55:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-27 11:55:17,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-27 11:55:17,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 493 transitions. [2023-08-27 11:55:17,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.510351966873706 [2023-08-27 11:55:17,752 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 493 transitions. [2023-08-27 11:55:17,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 493 transitions. [2023-08-27 11:55:17,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:55:17,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 493 transitions. [2023-08-27 11:55:17,760 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) [2023-08-27 11:55:17,764 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) [2023-08-27 11:55:17,765 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) [2023-08-27 11:55:17,766 INFO L175 Difference]: Start difference. First operand has 61 places, 81 transitions, 170 flow. Second operand 2 states and 493 transitions. [2023-08-27 11:55:17,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 57 transitions, 220 flow [2023-08-27 11:55:17,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 57 transitions, 220 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 11:55:17,771 INFO L231 Difference]: Finished difference. Result has 59 places, 57 transitions, 122 flow [2023-08-27 11:55:17,772 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} [2023-08-27 11:55:17,774 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -2 predicate places. [2023-08-27 11:55:17,774 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 122 flow [2023-08-27 11:55:17,775 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) [2023-08-27 11:55:17,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:55:17,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-27 11:55:17,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 11:55:17,775 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-27 11:55:17,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:55:17,775 INFO L85 PathProgramCache]: Analyzing trace with hash 936, now seen corresponding path program 1 times [2023-08-27 11:55:17,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:55:17,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175660679] [2023-08-27 11:55:17,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:55:17,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:55:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 11:55:17,827 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 11:55:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 11:55:17,868 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 11:55:17,868 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 11:55:17,869 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 23 remaining) [2023-08-27 11:55:17,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2023-08-27 11:55:17,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2023-08-27 11:55:17,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2023-08-27 11:55:17,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2023-08-27 11:55:17,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2023-08-27 11:55:17,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2023-08-27 11:55:17,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2023-08-27 11:55:17,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONASSERT (14 of 23 remaining) [2023-08-27 11:55:17,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2023-08-27 11:55:17,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2023-08-27 11:55:17,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2023-08-27 11:55:17,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2023-08-27 11:55:17,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2023-08-27 11:55:17,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2023-08-27 11:55:17,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2023-08-27 11:55:17,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2023-08-27 11:55:17,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2023-08-27 11:55:17,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONASSERT (4 of 23 remaining) [2023-08-27 11:55:17,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONASSERT (3 of 23 remaining) [2023-08-27 11:55:17,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2023-08-27 11:55:17,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2023-08-27 11:55:17,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2023-08-27 11:55:17,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 11:55:17,878 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-27 11:55:17,879 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2023-08-27 11:55:17,882 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 11:55:17,882 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 11:55:17,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 11:55:17 BasicIcfg [2023-08-27 11:55:17,895 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 11:55:17,897 INFO L158 Benchmark]: Toolchain (without parser) took 8769.88ms. Allocated memory was 352.3MB in the beginning and 658.5MB in the end (delta: 306.2MB). Free memory was 325.4MB in the beginning and 508.2MB in the end (delta: -182.8MB). Peak memory consumption was 126.6MB. Max. memory is 16.0GB. [2023-08-27 11:55:17,897 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 352.3MB. Free memory is still 329.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 11:55:17,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 553.98ms. Allocated memory is still 352.3MB. Free memory was 325.4MB in the beginning and 296.1MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-27 11:55:17,899 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.66ms. Allocated memory is still 352.3MB. Free memory was 296.1MB in the beginning and 293.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 11:55:17,899 INFO L158 Benchmark]: Boogie Preprocessor took 36.48ms. Allocated memory is still 352.3MB. Free memory was 293.9MB in the beginning and 291.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 11:55:17,899 INFO L158 Benchmark]: RCFGBuilder took 526.27ms. Allocated memory is still 352.3MB. Free memory was 291.8MB in the beginning and 269.9MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-27 11:55:17,899 INFO L158 Benchmark]: TraceAbstraction took 7583.24ms. Allocated memory was 352.3MB in the beginning and 658.5MB in the end (delta: 306.2MB). Free memory was 268.9MB in the beginning and 508.2MB in the end (delta: -239.3MB). Peak memory consumption was 69.9MB. Max. memory is 16.0GB. [2023-08-27 11:55:17,903 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 352.3MB. Free memory is still 329.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 553.98ms. Allocated memory is still 352.3MB. Free memory was 325.4MB in the beginning and 296.1MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 65.66ms. Allocated memory is still 352.3MB. Free memory was 296.1MB in the beginning and 293.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 36.48ms. Allocated memory is still 352.3MB. Free memory was 293.9MB in the beginning and 291.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 526.27ms. Allocated memory is still 352.3MB. Free memory was 291.8MB in the beginning and 269.9MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 7583.24ms. Allocated memory was 352.3MB in the beginning and 658.5MB in the end (delta: 306.2MB). Free memory was 268.9MB in the beginning and 508.2MB in the end (delta: -239.3MB). Peak memory consumption was 69.9MB. 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: 6.9s, 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: 1035]: 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: 1013]: 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: 1037]: 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. - 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: 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: 1035]: 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: 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: 1026]: 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, 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: 7.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s 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! [2023-08-27 11:55:17,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...