/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 02:23:57,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 02:23:57,276 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 [2023-08-25 02:23:57,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 02:23:57,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 02:23:57,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 02:23:57,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 02:23:57,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 02:23:57,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 02:23:57,306 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 02:23:57,306 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 02:23:57,307 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 02:23:57,307 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 02:23:57,308 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 02:23:57,308 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 02:23:57,308 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 02:23:57,308 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 02:23:57,308 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 02:23:57,308 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 02:23:57,308 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 02:23:57,309 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 02:23:57,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 02:23:57,309 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 02:23:57,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 02:23:57,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 02:23:57,310 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 02:23:57,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 02:23:57,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:23:57,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 02:23:57,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 02:23:57,311 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 02:23:57,311 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 02:23:57,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 02:23:57,312 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 02:23:57,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 02:23:57,312 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 02:23:57,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 02:23:57,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 02:23:57,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 02:23:57,563 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 02:23:57,563 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 02:23:57,564 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2023-08-25 02:23:58,516 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 02:23:58,770 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 02:23:58,771 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2023-08-25 02:23:58,794 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cf61b3e7/e4a00b2769a744f29395338d6f1854ec/FLAG7ac73994f [2023-08-25 02:23:58,805 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cf61b3e7/e4a00b2769a744f29395338d6f1854ec [2023-08-25 02:23:58,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 02:23:58,810 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 02:23:58,812 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 02:23:58,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 02:23:58,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 02:23:58,815 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:23:58" (1/1) ... [2023-08-25 02:23:58,816 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d1af15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:58, skipping insertion in model container [2023-08-25 02:23:58,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:23:58" (1/1) ... [2023-08-25 02:23:58,857 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 02:23:59,355 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:23:59,367 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 02:23:59,385 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-25 02:23:59,387 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-25 02:23:59,393 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [729] [2023-08-25 02:23:59,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:23:59,504 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 02:23:59,505 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 02:23:59,509 INFO L206 MainTranslator]: Completed translation [2023-08-25 02:23:59,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:59 WrapperNode [2023-08-25 02:23:59,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 02:23:59,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 02:23:59,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 02:23:59,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 02:23:59,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:59" (1/1) ... [2023-08-25 02:23:59,541 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:59" (1/1) ... [2023-08-25 02:23:59,559 INFO L138 Inliner]: procedures = 482, calls = 34, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 131 [2023-08-25 02:23:59,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 02:23:59,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 02:23:59,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 02:23:59,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 02:23:59,564 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:59" (1/1) ... [2023-08-25 02:23:59,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:59" (1/1) ... [2023-08-25 02:23:59,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:59" (1/1) ... [2023-08-25 02:23:59,568 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:59" (1/1) ... [2023-08-25 02:23:59,582 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:59" (1/1) ... [2023-08-25 02:23:59,587 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:59" (1/1) ... [2023-08-25 02:23:59,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:59" (1/1) ... [2023-08-25 02:23:59,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:59" (1/1) ... [2023-08-25 02:23:59,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 02:23:59,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 02:23:59,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 02:23:59,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 02:23:59,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:59" (1/1) ... [2023-08-25 02:23:59,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:23:59,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 02:23:59,633 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) [2023-08-25 02:23:59,643 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 [2023-08-25 02:23:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 02:23:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 02:23:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 02:23:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 02:23:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 02:23:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 02:23:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-25 02:23:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 02:23:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 02:23:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 02:23:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 02:23:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 02:23:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 02:23:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 02:23:59,663 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 02:23:59,853 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 02:23:59,855 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 02:23:59,998 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 02:24:00,030 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 02:24:00,030 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 02:24:00,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:24:00 BoogieIcfgContainer [2023-08-25 02:24:00,032 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 02:24:00,038 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 02:24:00,038 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 02:24:00,040 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 02:24:00,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 02:23:58" (1/3) ... [2023-08-25 02:24:00,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ed7c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:24:00, skipping insertion in model container [2023-08-25 02:24:00,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:59" (2/3) ... [2023-08-25 02:24:00,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ed7c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:24:00, skipping insertion in model container [2023-08-25 02:24:00,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:24:00" (3/3) ... [2023-08-25 02:24:00,042 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2023-08-25 02:24:00,052 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 02:24:00,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-25 02:24:00,053 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 02:24:00,107 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 02:24:00,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 140 transitions, 288 flow [2023-08-25 02:24:00,195 INFO L124 PetriNetUnfolderBase]: 7/162 cut-off events. [2023-08-25 02:24:00,195 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 02:24:00,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 162 events. 7/162 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 245 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 98. Up to 3 conditions per place. [2023-08-25 02:24:00,202 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 140 transitions, 288 flow [2023-08-25 02:24:00,207 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 130 transitions, 266 flow [2023-08-25 02:24:00,210 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 02:24:00,218 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 130 transitions, 266 flow [2023-08-25 02:24:00,220 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 130 transitions, 266 flow [2023-08-25 02:24:00,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 130 transitions, 266 flow [2023-08-25 02:24:00,256 INFO L124 PetriNetUnfolderBase]: 4/153 cut-off events. [2023-08-25 02:24:00,256 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 02:24:00,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 153 events. 4/153 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 229 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2023-08-25 02:24:00,258 INFO L119 LiptonReduction]: Number of co-enabled transitions 416 [2023-08-25 02:24:04,140 INFO L134 LiptonReduction]: Checked pairs total: 597 [2023-08-25 02:24:04,140 INFO L136 LiptonReduction]: Total number of compositions: 170 [2023-08-25 02:24:04,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 02:24:04,153 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;@3ce1fab3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 02:24:04,153 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-25 02:24:04,153 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 02:24:04,154 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 02:24:04,154 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:24:04,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:24:04,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 02:24:04,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-25 02:24:04,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:24:04,157 INFO L85 PathProgramCache]: Analyzing trace with hash 580, now seen corresponding path program 1 times [2023-08-25 02:24:04,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:24:04,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636986810] [2023-08-25 02:24:04,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:24:04,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:24:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:24:04,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:24:04,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:24:04,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636986810] [2023-08-25 02:24:04,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636986810] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:24:04,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:24:04,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 02:24:04,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066747401] [2023-08-25 02:24:04,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:24:04,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 02:24:04,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:24:04,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 02:24:04,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 02:24:04,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 310 [2023-08-25 02:24:04,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 52 flow. Second operand has 2 states, 2 states have (on average 122.5) internal successors, (245), 2 states have internal predecessors, (245), 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) [2023-08-25 02:24:04,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:24:04,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 310 [2023-08-25 02:24:04,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:24:04,365 INFO L124 PetriNetUnfolderBase]: 5/24 cut-off events. [2023-08-25 02:24:04,365 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 02:24:04,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 24 events. 5/24 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 51 event pairs, 5 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 32. Up to 25 conditions per place. [2023-08-25 02:24:04,366 INFO L140 encePairwiseOnDemand]: 297/310 looper letters, 7 selfloop transitions, 0 changer transitions 3/10 dead transitions. [2023-08-25 02:24:04,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 10 transitions, 46 flow [2023-08-25 02:24:04,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 02:24:04,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 02:24:04,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 267 transitions. [2023-08-25 02:24:04,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4306451612903226 [2023-08-25 02:24:04,381 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 267 transitions. [2023-08-25 02:24:04,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 267 transitions. [2023-08-25 02:24:04,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:24:04,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 267 transitions. [2023-08-25 02:24:04,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 133.5) internal successors, (267), 2 states have internal predecessors, (267), 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) [2023-08-25 02:24:04,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 310.0) internal successors, (930), 3 states have internal predecessors, (930), 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) [2023-08-25 02:24:04,391 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 310.0) internal successors, (930), 3 states have internal predecessors, (930), 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) [2023-08-25 02:24:04,392 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 52 flow. Second operand 2 states and 267 transitions. [2023-08-25 02:24:04,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 10 transitions, 46 flow [2023-08-25 02:24:04,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 10 transitions, 42 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 02:24:04,395 INFO L231 Difference]: Finished difference. Result has 12 places, 7 transitions, 15 flow [2023-08-25 02:24:04,396 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=310, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=15, PETRI_PLACES=12, PETRI_TRANSITIONS=7} [2023-08-25 02:24:04,398 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -14 predicate places. [2023-08-25 02:24:04,398 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 7 transitions, 15 flow [2023-08-25 02:24:04,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 122.5) internal successors, (245), 2 states have internal predecessors, (245), 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) [2023-08-25 02:24:04,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:24:04,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 02:24:04,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 02:24:04,399 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-25 02:24:04,400 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:24:04,400 INFO L85 PathProgramCache]: Analyzing trace with hash 582128, now seen corresponding path program 1 times [2023-08-25 02:24:04,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:24:04,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110790337] [2023-08-25 02:24:04,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:24:04,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:24:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:24:04,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:24:04,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:24:04,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110790337] [2023-08-25 02:24:04,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110790337] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:24:04,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:24:04,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:24:04,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578874361] [2023-08-25 02:24:04,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:24:04,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:24:04,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:24:04,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:24:04,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:24:04,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 310 [2023-08-25 02:24:04,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 7 transitions, 15 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2023-08-25 02:24:04,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:24:04,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 310 [2023-08-25 02:24:04,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:24:04,588 INFO L124 PetriNetUnfolderBase]: 3/13 cut-off events. [2023-08-25 02:24:04,589 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:24:04,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 13 events. 3/13 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 3 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 27. Up to 13 conditions per place. [2023-08-25 02:24:04,590 INFO L140 encePairwiseOnDemand]: 308/310 looper letters, 6 selfloop transitions, 0 changer transitions 1/7 dead transitions. [2023-08-25 02:24:04,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 7 transitions, 29 flow [2023-08-25 02:24:04,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:24:04,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:24:04,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2023-08-25 02:24:04,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3795698924731183 [2023-08-25 02:24:04,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2023-08-25 02:24:04,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2023-08-25 02:24:04,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:24:04,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2023-08-25 02:24:04,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2023-08-25 02:24:04,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 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) [2023-08-25 02:24:04,598 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 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) [2023-08-25 02:24:04,598 INFO L175 Difference]: Start difference. First operand has 12 places, 7 transitions, 15 flow. Second operand 3 states and 353 transitions. [2023-08-25 02:24:04,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 7 transitions, 29 flow [2023-08-25 02:24:04,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 7 transitions, 29 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 02:24:04,599 INFO L231 Difference]: Finished difference. Result has 12 places, 6 transitions, 15 flow [2023-08-25 02:24:04,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=310, PETRI_DIFFERENCE_MINUEND_FLOW=15, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=15, PETRI_PLACES=12, PETRI_TRANSITIONS=6} [2023-08-25 02:24:04,600 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -14 predicate places. [2023-08-25 02:24:04,600 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 6 transitions, 15 flow [2023-08-25 02:24:04,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2023-08-25 02:24:04,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:24:04,604 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 02:24:04,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 02:24:04,609 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-25 02:24:04,611 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:24:04,611 INFO L85 PathProgramCache]: Analyzing trace with hash 554117167, now seen corresponding path program 1 times [2023-08-25 02:24:04,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:24:04,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979216123] [2023-08-25 02:24:04,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:24:04,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:24:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:24:04,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:24:04,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:24:04,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979216123] [2023-08-25 02:24:04,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979216123] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:24:04,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:24:04,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:24:04,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700532642] [2023-08-25 02:24:04,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:24:04,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:24:04,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:24:04,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:24:04,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:24:04,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 310 [2023-08-25 02:24:04,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 6 transitions, 15 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2023-08-25 02:24:04,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:24:04,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 310 [2023-08-25 02:24:04,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:24:04,738 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2023-08-25 02:24:04,738 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:24:04,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 10 events. 1/10 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 1 based on Foata normal form. 2/12 useless extension candidates. Maximal degree in co-relation 23. Up to 9 conditions per place. [2023-08-25 02:24:04,738 INFO L140 encePairwiseOnDemand]: 307/310 looper letters, 4 selfloop transitions, 2 changer transitions 1/7 dead transitions. [2023-08-25 02:24:04,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 7 transitions, 31 flow [2023-08-25 02:24:04,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:24:04,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:24:04,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2023-08-25 02:24:04,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3795698924731183 [2023-08-25 02:24:04,740 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2023-08-25 02:24:04,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2023-08-25 02:24:04,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:24:04,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2023-08-25 02:24:04,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2023-08-25 02:24:04,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 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) [2023-08-25 02:24:04,742 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 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) [2023-08-25 02:24:04,742 INFO L175 Difference]: Start difference. First operand has 12 places, 6 transitions, 15 flow. Second operand 3 states and 353 transitions. [2023-08-25 02:24:04,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 7 transitions, 31 flow [2023-08-25 02:24:04,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 7 transitions, 29 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 02:24:04,743 INFO L231 Difference]: Finished difference. Result has 13 places, 6 transitions, 21 flow [2023-08-25 02:24:04,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=310, PETRI_DIFFERENCE_MINUEND_FLOW=13, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=21, PETRI_PLACES=13, PETRI_TRANSITIONS=6} [2023-08-25 02:24:04,743 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -13 predicate places. [2023-08-25 02:24:04,744 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 6 transitions, 21 flow [2023-08-25 02:24:04,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2023-08-25 02:24:04,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:24:04,744 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 02:24:04,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 02:24:04,744 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-25 02:24:04,744 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:24:04,744 INFO L85 PathProgramCache]: Analyzing trace with hash -2229309, now seen corresponding path program 1 times [2023-08-25 02:24:04,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:24:04,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147455038] [2023-08-25 02:24:04,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:24:04,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:24:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 02:24:04,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 02:24:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 02:24:04,813 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 02:24:04,813 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 02:24:04,814 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (15 of 16 remaining) [2023-08-25 02:24:04,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2023-08-25 02:24:04,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2023-08-25 02:24:04,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2023-08-25 02:24:04,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (11 of 16 remaining) [2023-08-25 02:24:04,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2023-08-25 02:24:04,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2023-08-25 02:24:04,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2023-08-25 02:24:04,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (7 of 16 remaining) [2023-08-25 02:24:04,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2023-08-25 02:24:04,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2023-08-25 02:24:04,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2023-08-25 02:24:04,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2023-08-25 02:24:04,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONASSERT (2 of 16 remaining) [2023-08-25 02:24:04,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2023-08-25 02:24:04,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2023-08-25 02:24:04,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 02:24:04,817 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-25 02:24:04,821 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 02:24:04,821 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 02:24:04,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 02:24:04 BasicIcfg [2023-08-25 02:24:04,843 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 02:24:04,844 INFO L158 Benchmark]: Toolchain (without parser) took 6034.21ms. Allocated memory was 392.2MB in the beginning and 511.7MB in the end (delta: 119.5MB). Free memory was 365.4MB in the beginning and 403.6MB in the end (delta: -38.2MB). Peak memory consumption was 84.5MB. Max. memory is 16.0GB. [2023-08-25 02:24:04,844 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 392.2MB. Free memory was 368.6MB in the beginning and 368.5MB in the end (delta: 81.5kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 02:24:04,844 INFO L158 Benchmark]: CACSL2BoogieTranslator took 697.89ms. Allocated memory is still 392.2MB. Free memory was 365.1MB in the beginning and 350.7MB in the end (delta: 14.4MB). Peak memory consumption was 48.8MB. Max. memory is 16.0GB. [2023-08-25 02:24:04,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.29ms. Allocated memory is still 392.2MB. Free memory was 350.2MB in the beginning and 347.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 02:24:04,846 INFO L158 Benchmark]: Boogie Preprocessor took 34.92ms. Allocated memory is still 392.2MB. Free memory was 347.3MB in the beginning and 344.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 02:24:04,849 INFO L158 Benchmark]: RCFGBuilder took 435.82ms. Allocated memory is still 392.2MB. Free memory was 344.4MB in the beginning and 319.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-25 02:24:04,851 INFO L158 Benchmark]: TraceAbstraction took 4805.65ms. Allocated memory was 392.2MB in the beginning and 511.7MB in the end (delta: 119.5MB). Free memory was 318.7MB in the beginning and 403.6MB in the end (delta: -84.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. [2023-08-25 02:24:04,852 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 392.2MB. Free memory was 368.6MB in the beginning and 368.5MB in the end (delta: 81.5kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 697.89ms. Allocated memory is still 392.2MB. Free memory was 365.1MB in the beginning and 350.7MB in the end (delta: 14.4MB). Peak memory consumption was 48.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.29ms. Allocated memory is still 392.2MB. Free memory was 350.2MB in the beginning and 347.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.92ms. Allocated memory is still 392.2MB. Free memory was 347.3MB in the beginning and 344.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 435.82ms. Allocated memory is still 392.2MB. Free memory was 344.4MB in the beginning and 319.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 4805.65ms. Allocated memory was 392.2MB in the beginning and 511.7MB in the end (delta: 119.5MB). Free memory was 318.7MB in the beginning and 403.6MB in the end (delta: -84.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 729]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [729] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 129 PlacesBefore, 26 PlacesAfterwards, 130 TransitionsBefore, 23 TransitionsAfterwards, 416 CoEnabledTransitionPairs, 8 FixpointIterations, 118 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 2 ConcurrentYvCompositions, 4 ChoiceCompositions, 170 TotalNumberOfCompositions, 597 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 475, independent: 424, independent conditional: 0, independent unconditional: 424, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 248, independent: 234, independent conditional: 0, independent unconditional: 234, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 475, independent: 190, independent conditional: 0, independent unconditional: 190, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 248, unknown conditional: 0, unknown unconditional: 248] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1693]: assertion can be violated assertion can be violated We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL, EXPR 0 module_init() [L1709] 0 pdev = 1 [L1710] EXPR 0 pdev==1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1713] 0 return 0; [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) [L1735] CALL 0 module_exit() [L1721] 0 void *status; [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={4:0}, pdev=4, status={5:0}, t1={3:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1726] EXPR 0 pdev==4 [L1726] CALL 0 ldv_assert(pdev==4) [L1695] COND TRUE 0 !expression [L1695] CALL 0 reach_error() [L1693] COND FALSE 0 !(0) [L1693] 0 __assert_fail ("0", "race-1_3-join.c", 10, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1728]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1730]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1731]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 143 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, 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, 36 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2023-08-25 02:24:04,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...