/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_94-alloc_region_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 12:07:16,775 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 12:07:16,842 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 12:07:16,845 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 12:07:16,845 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 12:07:16,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 12:07:16,872 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 12:07:16,872 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 12:07:16,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 12:07:16,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 12:07:16,873 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 12:07:16,873 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 12:07:16,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 12:07:16,874 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 12:07:16,874 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 12:07:16,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 12:07:16,875 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 12:07:16,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 12:07:16,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 12:07:16,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 12:07:16,875 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 12:07:16,878 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 12:07:16,878 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 12:07:16,879 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 12:07:16,881 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 12:07:16,881 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 12:07:16,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 12:07:16,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:07:16,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 12:07:16,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 12:07:16,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 12:07:16,883 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 12:07:16,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 12:07:16,883 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 12:07:16,883 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 12:07:16,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 12:07:17,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 12:07:17,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 12:07:17,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 12:07:17,140 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 12:07:17,140 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 12:07:17,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-08-27 12:07:18,190 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 12:07:18,417 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 12:07:18,417 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-08-27 12:07:18,432 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23721fe84/af58fe10b1c046c48bb90533325e7cfd/FLAG7f6445019 [2023-08-27 12:07:18,443 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23721fe84/af58fe10b1c046c48bb90533325e7cfd [2023-08-27 12:07:18,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 12:07:18,448 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 12:07:18,451 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 12:07:18,451 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 12:07:18,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 12:07:18,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:07:18" (1/1) ... [2023-08-27 12:07:18,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2647395d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:18, skipping insertion in model container [2023-08-27 12:07:18,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:07:18" (1/1) ... [2023-08-27 12:07:18,496 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 12:07:18,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:07:18,888 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 12:07:18,906 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 12:07:18,907 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 12:07:18,915 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-27 12:07:18,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:07:19,001 INFO L206 MainTranslator]: Completed translation [2023-08-27 12:07:19,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:19 WrapperNode [2023-08-27 12:07:19,003 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 12:07:19,004 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 12:07:19,004 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 12:07:19,004 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 12:07:19,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:19" (1/1) ... [2023-08-27 12:07:19,031 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:19" (1/1) ... [2023-08-27 12:07:19,067 INFO L138 Inliner]: procedures = 377, calls = 73, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 258 [2023-08-27 12:07:19,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 12:07:19,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 12:07:19,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 12:07:19,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 12:07:19,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:19" (1/1) ... [2023-08-27 12:07:19,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:19" (1/1) ... [2023-08-27 12:07:19,089 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:19" (1/1) ... [2023-08-27 12:07:19,089 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:19" (1/1) ... [2023-08-27 12:07:19,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:19" (1/1) ... [2023-08-27 12:07:19,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:19" (1/1) ... [2023-08-27 12:07:19,099 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:19" (1/1) ... [2023-08-27 12:07:19,100 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:19" (1/1) ... [2023-08-27 12:07:19,118 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 12:07:19,118 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 12:07:19,119 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 12:07:19,119 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 12:07:19,119 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:19" (1/1) ... [2023-08-27 12:07:19,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:07:19,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 12:07:19,158 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 12:07:19,164 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 12:07:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 12:07:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-27 12:07:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 12:07:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-27 12:07:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 12:07:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 12:07:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 12:07:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-27 12:07:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 12:07:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-27 12:07:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 12:07:19,186 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 12:07:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 12:07:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 12:07:19,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 12:07:19,188 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 12:07:19,286 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 12:07:19,287 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 12:07:19,543 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 12:07:19,549 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 12:07:19,549 INFO L302 CfgBuilder]: Removed 23 assume(true) statements. [2023-08-27 12:07:19,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:07:19 BoogieIcfgContainer [2023-08-27 12:07:19,551 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 12:07:19,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 12:07:19,552 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 12:07:19,554 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 12:07:19,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 12:07:18" (1/3) ... [2023-08-27 12:07:19,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da38d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:07:19, skipping insertion in model container [2023-08-27 12:07:19,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:07:19" (2/3) ... [2023-08-27 12:07:19,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da38d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:07:19, skipping insertion in model container [2023-08-27 12:07:19,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:07:19" (3/3) ... [2023-08-27 12:07:19,556 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2023-08-27 12:07:19,584 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 12:07:19,584 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-27 12:07:19,584 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 12:07:19,699 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-27 12:07:19,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 246 places, 274 transitions, 556 flow [2023-08-27 12:07:19,833 INFO L124 PetriNetUnfolderBase]: 48/391 cut-off events. [2023-08-27 12:07:19,833 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 12:07:19,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 391 events. 48/391 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1237 event pairs, 0 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 216. Up to 8 conditions per place. [2023-08-27 12:07:19,844 INFO L82 GeneralOperation]: Start removeDead. Operand has 246 places, 274 transitions, 556 flow [2023-08-27 12:07:19,852 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 244 places, 271 transitions, 550 flow [2023-08-27 12:07:19,856 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 12:07:19,864 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 244 places, 271 transitions, 550 flow [2023-08-27 12:07:19,867 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 244 places, 271 transitions, 550 flow [2023-08-27 12:07:19,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 244 places, 271 transitions, 550 flow [2023-08-27 12:07:19,918 INFO L124 PetriNetUnfolderBase]: 47/388 cut-off events. [2023-08-27 12:07:19,918 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 12:07:19,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 388 events. 47/388 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1235 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 216. Up to 8 conditions per place. [2023-08-27 12:07:19,929 INFO L119 LiptonReduction]: Number of co-enabled transitions 22860 [2023-08-27 12:07:28,714 INFO L134 LiptonReduction]: Checked pairs total: 50968 [2023-08-27 12:07:28,715 INFO L136 LiptonReduction]: Total number of compositions: 230 [2023-08-27 12:07:28,724 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 12:07:28,729 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;@10905592, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 12:07:28,729 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2023-08-27 12:07:28,733 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 12:07:28,733 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-08-27 12:07:28,733 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:07:28,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:07:28,734 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 12:07:28,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT (and 16 more)] === [2023-08-27 12:07:28,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:07:28,737 INFO L85 PathProgramCache]: Analyzing trace with hash 31593574, now seen corresponding path program 1 times [2023-08-27 12:07:28,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:07:28,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695532779] [2023-08-27 12:07:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:07:28,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:07:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:07:29,010 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 12:07:29,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:07:29,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695532779] [2023-08-27 12:07:29,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695532779] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:07:29,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:07:29,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:07:29,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935128258] [2023-08-27 12:07:29,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:07:29,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:07:29,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:07:29,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:07:29,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:07:29,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 504 [2023-08-27 12:07:29,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 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 12:07:29,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:07:29,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 504 [2023-08-27 12:07:29,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:07:29,383 INFO L124 PetriNetUnfolderBase]: 853/1824 cut-off events. [2023-08-27 12:07:29,383 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 12:07:29,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3545 conditions, 1824 events. 853/1824 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 10947 event pairs, 0 based on Foata normal form. 151/1568 useless extension candidates. Maximal degree in co-relation 3475. Up to 1662 conditions per place. [2023-08-27 12:07:29,391 INFO L140 encePairwiseOnDemand]: 476/504 looper letters, 87 selfloop transitions, 2 changer transitions 0/99 dead transitions. [2023-08-27 12:07:29,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 99 transitions, 384 flow [2023-08-27 12:07:29,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:07:29,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:07:29,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 830 transitions. [2023-08-27 12:07:29,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.548941798941799 [2023-08-27 12:07:29,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 830 transitions. [2023-08-27 12:07:29,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 830 transitions. [2023-08-27 12:07:29,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:07:29,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 830 transitions. [2023-08-27 12:07:29,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 276.6666666666667) internal successors, (830), 3 states have internal predecessors, (830), 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 12:07:29,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 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 12:07:29,424 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 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 12:07:29,425 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 204 flow. Second operand 3 states and 830 transitions. [2023-08-27 12:07:29,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 99 transitions, 384 flow [2023-08-27 12:07:29,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 99 transitions, 384 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 12:07:29,432 INFO L231 Difference]: Finished difference. Result has 76 places, 73 transitions, 162 flow [2023-08-27 12:07:29,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=76, PETRI_TRANSITIONS=73} [2023-08-27 12:07:29,435 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 0 predicate places. [2023-08-27 12:07:29,435 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 73 transitions, 162 flow [2023-08-27 12:07:29,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 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 12:07:29,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:07:29,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:07:29,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 12:07:29,437 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr4ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT (and 16 more)] === [2023-08-27 12:07:29,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:07:29,445 INFO L85 PathProgramCache]: Analyzing trace with hash -4949368, now seen corresponding path program 1 times [2023-08-27 12:07:29,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:07:29,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383979887] [2023-08-27 12:07:29,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:07:29,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:07:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 12:07:29,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 12:07:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 12:07:29,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 12:07:29,627 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 12:07:29,628 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr4ASSERT_VIOLATIONASSERT (18 of 19 remaining) [2023-08-27 12:07:29,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2023-08-27 12:07:29,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2023-08-27 12:07:29,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONASSERT (15 of 19 remaining) [2023-08-27 12:07:29,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2023-08-27 12:07:29,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2023-08-27 12:07:29,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2023-08-27 12:07:29,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2023-08-27 12:07:29,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2023-08-27 12:07:29,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2023-08-27 12:07:29,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2023-08-27 12:07:29,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2023-08-27 12:07:29,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2023-08-27 12:07:29,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2023-08-27 12:07:29,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2023-08-27 12:07:29,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONASSERT (3 of 19 remaining) [2023-08-27 12:07:29,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2023-08-27 12:07:29,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2023-08-27 12:07:29,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2023-08-27 12:07:29,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 12:07:29,632 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-27 12:07:29,633 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 (1/2) [2023-08-27 12:07:29,636 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 12:07:29,636 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 12:07:29,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 12:07:29 BasicIcfg [2023-08-27 12:07:29,660 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 12:07:29,660 INFO L158 Benchmark]: Toolchain (without parser) took 11211.74ms. Allocated memory was 406.8MB in the beginning and 539.0MB in the end (delta: 132.1MB). Free memory was 381.3MB in the beginning and 430.5MB in the end (delta: -49.1MB). Peak memory consumption was 82.9MB. Max. memory is 16.0GB. [2023-08-27 12:07:29,660 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 406.8MB. Free memory is still 383.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 12:07:29,661 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.79ms. Allocated memory is still 406.8MB. Free memory was 381.3MB in the beginning and 341.0MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. [2023-08-27 12:07:29,661 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.56ms. Allocated memory is still 406.8MB. Free memory was 341.0MB in the beginning and 337.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-27 12:07:29,661 INFO L158 Benchmark]: Boogie Preprocessor took 49.95ms. Allocated memory is still 406.8MB. Free memory was 337.5MB in the beginning and 335.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 12:07:29,662 INFO L158 Benchmark]: RCFGBuilder took 432.62ms. Allocated memory is still 406.8MB. Free memory was 335.4MB in the beginning and 308.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-27 12:07:29,662 INFO L158 Benchmark]: TraceAbstraction took 10107.29ms. Allocated memory was 406.8MB in the beginning and 539.0MB in the end (delta: 132.1MB). Free memory was 307.4MB in the beginning and 430.5MB in the end (delta: -123.1MB). Peak memory consumption was 9.5MB. Max. memory is 16.0GB. [2023-08-27 12:07:29,663 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 406.8MB. Free memory is still 383.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 551.79ms. Allocated memory is still 406.8MB. Free memory was 381.3MB in the beginning and 341.0MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 63.56ms. Allocated memory is still 406.8MB. Free memory was 341.0MB in the beginning and 337.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 49.95ms. Allocated memory is still 406.8MB. Free memory was 337.5MB in the beginning and 335.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 432.62ms. Allocated memory is still 406.8MB. Free memory was 335.4MB in the beginning and 308.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * TraceAbstraction took 10107.29ms. Allocated memory was 406.8MB in the beginning and 539.0MB in the end (delta: 132.1MB). Free memory was 307.4MB in the beginning and 430.5MB in the end (delta: -123.1MB). Peak memory consumption was 9.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 1044]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [1044] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.8s, 244 PlacesBefore, 76 PlacesAfterwards, 271 TransitionsBefore, 98 TransitionsAfterwards, 22860 CoEnabledTransitionPairs, 7 FixpointIterations, 51 TrivialSequentialCompositions, 154 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 5 ChoiceCompositions, 230 TotalNumberOfCompositions, 50968 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17971, independent: 17305, independent conditional: 0, independent unconditional: 17305, dependent: 666, dependent conditional: 0, dependent unconditional: 666, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11419, independent: 11306, independent conditional: 0, independent unconditional: 11306, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17971, independent: 5999, independent conditional: 0, independent unconditional: 5999, dependent: 553, dependent conditional: 0, dependent unconditional: 553, unknown: 11419, unknown conditional: 0, unknown unconditional: 11419] , Statistics on independence cache: Total cache size (in pairs): 242, Positive cache size: 185, Positive conditional cache size: 0, Positive unconditional cache size: 185, Negative cache size: 57, Negative conditional cache size: 0, Negative unconditional cache size: 57, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1234]: assertion can be violated assertion can be violated We found a FailurePath: [L1240] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1241-L1244] 0 struct s { int datum; struct s *next; } *A; [L1253] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1254] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1267] 0 struct s *p; [L1268] 0 A = malloc(sizeof(struct s)) [L1269] EXPR 0 \read(*A) [L1269] CALL 0 init(A,3) [L1246] 0 p -> datum = x [L1247] 0 p -> next = ((void *)0) [L1269] RET 0 init(A,3) [L1270] 0 pthread_t t_ids[10000]; [L1270] 0 int i=0; VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=0, t_ids={17:0}] [L1270] COND TRUE 0 i<10000 [L1270] FCALL, FORK 0 pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0)) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=0, pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0))=-1, t_ids={17:0}] [L1256] 1 struct s *p = malloc(sizeof(struct s)); [L1257] CALL 1 init(p,7) [L1246] 1 p -> datum = x VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(x)=3, \old(x)=7, __global_lock={3:0}, p={11:0}, p={11:0}, p={15:0}, p={15:0}, x=3, x=7] [L1247] 1 p -> next = ((void *)0) [L1257] RET 1 init(p,7) [L1259] CALL 1 insert(p, &A) [L1250] EXPR 1 \read(**list) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \read(**list)={11:0}, __global_lock={3:0}, list={4:0}, list={4:0}, p={15:0}, p={15:0}] [L1250] 1 p->next = *list VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \read(**list)={11:0}, __global_lock={3:0}, list={4:0}, list={4:0}, p={15:0}, p={15:0}] [L1251] 1 *list = p VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, list={4:0}, list={4:0}, p={15:0}, p={15:0}] [L1259] RET 1 insert(p, &A) [L1262] COND FALSE 1 !(__VERIFIER_nondet_int()) [L1262] EXPR 1 p->datum [L1262] CALL 1 __VERIFIER_assert((p->datum) == 0) [L1235] COND TRUE 1 !(cond) [L1235] CALL 1 reach_error() [L1234] COND FALSE 1 !(0) [L1234] 1 __assert_fail ("0", "racemacros.h", 9, __extension__ __PRETTY_FUNCTION__) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}] - UnprovableResult [Line: 1283]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1279]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1234]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1262]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1270]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1262]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1262]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1262]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1279]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1279]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1279]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1283]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1270]: 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, 322 locations, 20 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: 9.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 12:07:29,681 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...