/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/pthread-lit/qw2004-2b.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 02:23:20,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 02:23:20,686 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 02:23:20,690 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 02:23:20,690 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 02:23:20,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 02:23:20,712 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 02:23:20,713 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 02:23:20,713 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 02:23:20,717 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 02:23:20,717 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 02:23:20,718 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 02:23:20,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 02:23:20,719 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 02:23:20,719 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 02:23:20,719 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 02:23:20,720 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 02:23:20,720 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 02:23:20,720 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 02:23:20,720 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 02:23:20,721 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 02:23:20,737 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 02:23:20,737 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 02:23:20,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 02:23:20,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 02:23:20,737 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 02:23:20,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 02:23:20,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:23:20,738 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 02:23:20,738 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 02:23:20,738 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 02:23:20,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 02:23:20,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 02:23:20,739 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 02:23:20,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 02:23:20,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 02:23:20,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 02:23:20,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 02:23:20,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 02:23:20,999 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 02:23:21,000 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 02:23:21,001 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-2b.i [2023-08-25 02:23:21,950 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 02:23:22,228 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 02:23:22,228 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2b.i [2023-08-25 02:23:22,249 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dac74d56/a1523bdfb7244593b9311a7ddf4eb38e/FLAG4f64497e3 [2023-08-25 02:23:22,258 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dac74d56/a1523bdfb7244593b9311a7ddf4eb38e [2023-08-25 02:23:22,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 02:23:22,261 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 02:23:22,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 02:23:22,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 02:23:22,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 02:23:22,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:23:22" (1/1) ... [2023-08-25 02:23:22,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@338be59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:22, skipping insertion in model container [2023-08-25 02:23:22,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:23:22" (1/1) ... [2023-08-25 02:23:22,307 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 02:23:22,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:23:22,564 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 02:23:22,590 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-25 02:23:22,591 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-25 02:23:22,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:23:22,639 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 02:23:22,640 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 02:23:22,645 INFO L206 MainTranslator]: Completed translation [2023-08-25 02:23:22,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:22 WrapperNode [2023-08-25 02:23:22,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 02:23:22,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 02:23:22,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 02:23:22,648 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 02:23:22,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:22" (1/1) ... [2023-08-25 02:23:22,676 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:22" (1/1) ... [2023-08-25 02:23:22,699 INFO L138 Inliner]: procedures = 175, calls = 37, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 182 [2023-08-25 02:23:22,700 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 02:23:22,701 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 02:23:22,701 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 02:23:22,701 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 02:23:22,707 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:22" (1/1) ... [2023-08-25 02:23:22,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:22" (1/1) ... [2023-08-25 02:23:22,721 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:22" (1/1) ... [2023-08-25 02:23:22,721 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:22" (1/1) ... [2023-08-25 02:23:22,725 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:22" (1/1) ... [2023-08-25 02:23:22,726 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:22" (1/1) ... [2023-08-25 02:23:22,727 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:22" (1/1) ... [2023-08-25 02:23:22,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:22" (1/1) ... [2023-08-25 02:23:22,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 02:23:22,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 02:23:22,730 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 02:23:22,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 02:23:22,730 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:22" (1/1) ... [2023-08-25 02:23:22,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:23:22,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 02:23:22,766 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 02:23:22,773 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 02:23:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2023-08-25 02:23:22,799 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2023-08-25 02:23:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 02:23:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 02:23:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 02:23:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 02:23:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 02:23:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 02:23:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 02:23:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 02:23:22,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 02:23:22,801 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 02:23:22,946 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 02:23:22,947 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 02:23:23,135 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 02:23:23,202 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 02:23:23,203 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 02:23:23,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:23:23 BoogieIcfgContainer [2023-08-25 02:23:23,210 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 02:23:23,211 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 02:23:23,211 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 02:23:23,213 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 02:23:23,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 02:23:22" (1/3) ... [2023-08-25 02:23:23,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4d4aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:23:23, skipping insertion in model container [2023-08-25 02:23:23,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:22" (2/3) ... [2023-08-25 02:23:23,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4d4aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:23:23, skipping insertion in model container [2023-08-25 02:23:23,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:23:23" (3/3) ... [2023-08-25 02:23:23,215 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-2b.i [2023-08-25 02:23:23,226 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 02:23:23,226 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-25 02:23:23,226 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 02:23:23,274 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 02:23:23,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 143 transitions, 291 flow [2023-08-25 02:23:23,364 INFO L124 PetriNetUnfolderBase]: 7/142 cut-off events. [2023-08-25 02:23:23,364 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:23:23,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 142 events. 7/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 199 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2023-08-25 02:23:23,369 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 143 transitions, 291 flow [2023-08-25 02:23:23,386 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 142 transitions, 287 flow [2023-08-25 02:23:23,390 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 02:23:23,397 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 142 transitions, 287 flow [2023-08-25 02:23:23,399 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 142 transitions, 287 flow [2023-08-25 02:23:23,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 142 transitions, 287 flow [2023-08-25 02:23:23,427 INFO L124 PetriNetUnfolderBase]: 7/142 cut-off events. [2023-08-25 02:23:23,427 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:23:23,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 142 events. 7/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 198 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2023-08-25 02:23:23,430 INFO L119 LiptonReduction]: Number of co-enabled transitions 4488 [2023-08-25 02:23:25,934 INFO L134 LiptonReduction]: Checked pairs total: 7871 [2023-08-25 02:23:25,934 INFO L136 LiptonReduction]: Total number of compositions: 170 [2023-08-25 02:23:25,950 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 02:23:25,955 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;@52b9be3e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 02:23:25,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-08-25 02:23:25,956 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 02:23:25,956 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 02:23:25,956 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:23:25,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:23:25,957 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 02:23:25,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 02:23:25,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:23:25,961 INFO L85 PathProgramCache]: Analyzing trace with hash 661, now seen corresponding path program 1 times [2023-08-25 02:23:25,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:23:25,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272630309] [2023-08-25 02:23:25,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:23:25,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:23:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:23:26,061 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 02:23:26,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:23:26,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272630309] [2023-08-25 02:23:26,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272630309] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:23:26,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:23:26,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 02:23:26,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128063022] [2023-08-25 02:23:26,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:23:26,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 02:23:26,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:23:26,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 02:23:26,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 02:23:26,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 313 [2023-08-25 02:23:26,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 34 transitions, 71 flow. Second operand has 2 states, 2 states have (on average 112.5) internal successors, (225), 2 states have internal predecessors, (225), 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 02:23:26,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:23:26,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 313 [2023-08-25 02:23:26,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:23:26,138 INFO L124 PetriNetUnfolderBase]: 41/90 cut-off events. [2023-08-25 02:23:26,138 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:23:26,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 90 events. 41/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 257 event pairs, 35 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 176. Up to 91 conditions per place. [2023-08-25 02:23:26,140 INFO L140 encePairwiseOnDemand]: 294/313 looper letters, 12 selfloop transitions, 0 changer transitions 3/15 dead transitions. [2023-08-25 02:23:26,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 15 transitions, 63 flow [2023-08-25 02:23:26,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 02:23:26,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 02:23:26,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 258 transitions. [2023-08-25 02:23:26,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41214057507987223 [2023-08-25 02:23:26,155 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 258 transitions. [2023-08-25 02:23:26,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 258 transitions. [2023-08-25 02:23:26,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:23:26,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 258 transitions. [2023-08-25 02:23:26,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 129.0) internal successors, (258), 2 states have internal predecessors, (258), 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 02:23:26,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 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 02:23:26,166 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 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 02:23:26,167 INFO L175 Difference]: Start difference. First operand has 37 places, 34 transitions, 71 flow. Second operand 2 states and 258 transitions. [2023-08-25 02:23:26,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 15 transitions, 63 flow [2023-08-25 02:23:26,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 15 transitions, 62 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 02:23:26,170 INFO L231 Difference]: Finished difference. Result has 18 places, 12 transitions, 26 flow [2023-08-25 02:23:26,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=26, PETRI_PLACES=18, PETRI_TRANSITIONS=12} [2023-08-25 02:23:26,175 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -19 predicate places. [2023-08-25 02:23:26,175 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 12 transitions, 26 flow [2023-08-25 02:23:26,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 112.5) internal successors, (225), 2 states have internal predecessors, (225), 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 02:23:26,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:23:26,176 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 02:23:26,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 02:23:26,176 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 02:23:26,177 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:23:26,177 INFO L85 PathProgramCache]: Analyzing trace with hash 20434898, now seen corresponding path program 1 times [2023-08-25 02:23:26,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:23:26,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205512371] [2023-08-25 02:23:26,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:23:26,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:23:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:23:26,321 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 02:23:26,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:23:26,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205512371] [2023-08-25 02:23:26,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205512371] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:23:26,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:23:26,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:23:26,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750561661] [2023-08-25 02:23:26,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:23:26,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:23:26,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:23:26,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:23:26,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:23:26,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 313 [2023-08-25 02:23:26,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 12 transitions, 26 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 02:23:26,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:23:26,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 313 [2023-08-25 02:23:26,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:23:26,364 INFO L124 PetriNetUnfolderBase]: 36/87 cut-off events. [2023-08-25 02:23:26,364 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:23:26,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 87 events. 36/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 277 event pairs, 8 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 176. Up to 46 conditions per place. [2023-08-25 02:23:26,367 INFO L140 encePairwiseOnDemand]: 309/313 looper letters, 17 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2023-08-25 02:23:26,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 20 transitions, 82 flow [2023-08-25 02:23:26,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:23:26,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:23:26,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2023-08-25 02:23:26,369 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3738019169329074 [2023-08-25 02:23:26,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2023-08-25 02:23:26,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2023-08-25 02:23:26,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:23:26,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2023-08-25 02:23:26,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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 02:23:26,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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 02:23:26,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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 02:23:26,374 INFO L175 Difference]: Start difference. First operand has 18 places, 12 transitions, 26 flow. Second operand 3 states and 351 transitions. [2023-08-25 02:23:26,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 20 transitions, 82 flow [2023-08-25 02:23:26,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 20 transitions, 82 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 02:23:26,375 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 44 flow [2023-08-25 02:23:26,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2023-08-25 02:23:26,375 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -18 predicate places. [2023-08-25 02:23:26,376 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 44 flow [2023-08-25 02:23:26,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 02:23:26,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:23:26,376 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 02:23:26,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 02:23:26,377 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 02:23:26,379 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:23:26,379 INFO L85 PathProgramCache]: Analyzing trace with hash 633414514, now seen corresponding path program 1 times [2023-08-25 02:23:26,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:23:26,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653080331] [2023-08-25 02:23:26,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:23:26,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:23:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:23:26,448 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 02:23:26,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:23:26,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653080331] [2023-08-25 02:23:26,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653080331] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:23:26,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:23:26,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:23:26,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833783386] [2023-08-25 02:23:26,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:23:26,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:23:26,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:23:26,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:23:26,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:23:26,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 313 [2023-08-25 02:23:26,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 02:23:26,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:23:26,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 313 [2023-08-25 02:23:26,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:23:26,475 INFO L124 PetriNetUnfolderBase]: 35/91 cut-off events. [2023-08-25 02:23:26,476 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-08-25 02:23:26,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 91 events. 35/91 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 299 event pairs, 31 based on Foata normal form. 5/96 useless extension candidates. Maximal degree in co-relation 212. Up to 83 conditions per place. [2023-08-25 02:23:26,476 INFO L140 encePairwiseOnDemand]: 311/313 looper letters, 12 selfloop transitions, 0 changer transitions 5/17 dead transitions. [2023-08-25 02:23:26,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 17 transitions, 86 flow [2023-08-25 02:23:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:23:26,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:23:26,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2023-08-25 02:23:26,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3599574014909478 [2023-08-25 02:23:26,477 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 338 transitions. [2023-08-25 02:23:26,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 338 transitions. [2023-08-25 02:23:26,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:23:26,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 338 transitions. [2023-08-25 02:23:26,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 02:23:26,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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 02:23:26,480 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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 02:23:26,480 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 44 flow. Second operand 3 states and 338 transitions. [2023-08-25 02:23:26,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 17 transitions, 86 flow [2023-08-25 02:23:26,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 17 transitions, 80 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 02:23:26,481 INFO L231 Difference]: Finished difference. Result has 20 places, 12 transitions, 36 flow [2023-08-25 02:23:26,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=20, PETRI_TRANSITIONS=12} [2023-08-25 02:23:26,481 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -17 predicate places. [2023-08-25 02:23:26,482 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 12 transitions, 36 flow [2023-08-25 02:23:26,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 02:23:26,482 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:23:26,482 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 02:23:26,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 02:23:26,482 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 02:23:26,482 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:23:26,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1837552075, now seen corresponding path program 1 times [2023-08-25 02:23:26,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:23:26,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92150139] [2023-08-25 02:23:26,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:23:26,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:23:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:23:26,529 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 02:23:26,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:23:26,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92150139] [2023-08-25 02:23:26,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92150139] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:23:26,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:23:26,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 02:23:26,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244434150] [2023-08-25 02:23:26,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:23:26,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:23:26,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:23:26,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:23:26,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:23:26,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 313 [2023-08-25 02:23:26,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 12 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 02:23:26,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:23:26,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 313 [2023-08-25 02:23:26,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:23:26,552 INFO L124 PetriNetUnfolderBase]: 22/64 cut-off events. [2023-08-25 02:23:26,553 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-25 02:23:26,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 64 events. 22/64 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 172 event pairs, 17 based on Foata normal form. 9/73 useless extension candidates. Maximal degree in co-relation 143. Up to 50 conditions per place. [2023-08-25 02:23:26,553 INFO L140 encePairwiseOnDemand]: 310/313 looper letters, 13 selfloop transitions, 2 changer transitions 0/15 dead transitions. [2023-08-25 02:23:26,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 15 transitions, 74 flow [2023-08-25 02:23:26,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:23:26,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:23:26,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2023-08-25 02:23:26,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36741214057507987 [2023-08-25 02:23:26,555 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 345 transitions. [2023-08-25 02:23:26,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 345 transitions. [2023-08-25 02:23:26,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:23:26,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 345 transitions. [2023-08-25 02:23:26,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 02:23:26,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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 02:23:26,558 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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 02:23:26,558 INFO L175 Difference]: Start difference. First operand has 20 places, 12 transitions, 36 flow. Second operand 3 states and 345 transitions. [2023-08-25 02:23:26,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 15 transitions, 74 flow [2023-08-25 02:23:26,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 15 transitions, 72 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 02:23:26,560 INFO L231 Difference]: Finished difference. Result has 21 places, 12 transitions, 42 flow [2023-08-25 02:23:26,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=21, PETRI_TRANSITIONS=12} [2023-08-25 02:23:26,560 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -16 predicate places. [2023-08-25 02:23:26,560 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 12 transitions, 42 flow [2023-08-25 02:23:26,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 02:23:26,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:23:26,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:23:26,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 02:23:26,561 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 02:23:26,562 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:23:26,562 INFO L85 PathProgramCache]: Analyzing trace with hash 413025091, now seen corresponding path program 1 times [2023-08-25 02:23:26,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:23:26,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194709236] [2023-08-25 02:23:26,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:23:26,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:23:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 02:23:26,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 02:23:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 02:23:26,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 02:23:26,596 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 02:23:26,597 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (27 of 28 remaining) [2023-08-25 02:23:26,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2023-08-25 02:23:26,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2023-08-25 02:23:26,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2023-08-25 02:23:26,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2023-08-25 02:23:26,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2023-08-25 02:23:26,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2023-08-25 02:23:26,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2023-08-25 02:23:26,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2023-08-25 02:23:26,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2023-08-25 02:23:26,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2023-08-25 02:23:26,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2023-08-25 02:23:26,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2023-08-25 02:23:26,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2023-08-25 02:23:26,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2023-08-25 02:23:26,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2023-08-25 02:23:26,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2023-08-25 02:23:26,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2023-08-25 02:23:26,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2023-08-25 02:23:26,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2023-08-25 02:23:26,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 28 remaining) [2023-08-25 02:23:26,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2023-08-25 02:23:26,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2023-08-25 02:23:26,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2023-08-25 02:23:26,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2023-08-25 02:23:26,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2023-08-25 02:23:26,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2023-08-25 02:23:26,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2023-08-25 02:23:26,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 02:23:26,602 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-25 02:23:26,607 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 02:23:26,607 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 02:23:26,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 02:23:26 BasicIcfg [2023-08-25 02:23:26,629 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 02:23:26,630 INFO L158 Benchmark]: Toolchain (without parser) took 4369.01ms. Allocated memory was 371.2MB in the beginning and 480.2MB in the end (delta: 109.1MB). Free memory was 345.9MB in the beginning and 306.5MB in the end (delta: 39.4MB). Peak memory consumption was 150.5MB. Max. memory is 16.0GB. [2023-08-25 02:23:26,630 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 371.2MB. Free memory is still 348.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 02:23:26,631 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.84ms. Allocated memory is still 371.2MB. Free memory was 345.1MB in the beginning and 325.0MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 02:23:26,631 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.52ms. Allocated memory is still 371.2MB. Free memory was 325.0MB in the beginning and 323.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 02:23:26,631 INFO L158 Benchmark]: Boogie Preprocessor took 28.12ms. Allocated memory is still 371.2MB. Free memory was 323.0MB in the beginning and 320.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 02:23:26,632 INFO L158 Benchmark]: RCFGBuilder took 479.90ms. Allocated memory is still 371.2MB. Free memory was 320.9MB in the beginning and 297.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-25 02:23:26,632 INFO L158 Benchmark]: TraceAbstraction took 3418.24ms. Allocated memory was 371.2MB in the beginning and 480.2MB in the end (delta: 109.1MB). Free memory was 297.1MB in the beginning and 306.5MB in the end (delta: -9.4MB). Peak memory consumption was 102.2MB. Max. memory is 16.0GB. [2023-08-25 02:23:26,634 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 371.2MB. Free memory is still 348.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 385.84ms. Allocated memory is still 371.2MB. Free memory was 345.1MB in the beginning and 325.0MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 52.52ms. Allocated memory is still 371.2MB. Free memory was 325.0MB in the beginning and 323.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.12ms. Allocated memory is still 371.2MB. Free memory was 323.0MB in the beginning and 320.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 479.90ms. Allocated memory is still 371.2MB. Free memory was 320.9MB in the beginning and 297.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 3418.24ms. Allocated memory was 371.2MB in the beginning and 480.2MB in the end (delta: 109.1MB). Free memory was 297.1MB in the beginning and 306.5MB in the end (delta: -9.4MB). Peak memory consumption was 102.2MB. 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] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 139 PlacesBefore, 37 PlacesAfterwards, 142 TransitionsBefore, 34 TransitionsAfterwards, 4488 CoEnabledTransitionPairs, 7 FixpointIterations, 47 TrivialSequentialCompositions, 97 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 6 ChoiceCompositions, 170 TotalNumberOfCompositions, 7871 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5509, independent: 5313, independent conditional: 0, independent unconditional: 5313, dependent: 196, dependent conditional: 0, dependent unconditional: 196, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2769, independent: 2717, independent conditional: 0, independent unconditional: 2717, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5509, independent: 2596, independent conditional: 0, independent unconditional: 2596, dependent: 144, dependent conditional: 0, dependent unconditional: 144, unknown: 2769, unknown conditional: 0, unknown unconditional: 2769] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 113, Positive conditional cache size: 0, Positive unconditional cache size: 113, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 683]: assertion can be violated assertion can be violated We found a FailurePath: [L697] 0 volatile int stoppingFlag; [L698] 0 volatile int pendingIo; [L699] 0 volatile int stoppingEvent; [L700] 0 volatile int stopped; [L756] 0 pthread_t t; [L757] 0 pendingIo = 1 [L758] 0 stoppingFlag = 0 [L759] 0 stoppingEvent = 0 [L760] 0 stopped = 0 [L761] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, pthread_create(&t, 0, BCSP_PnpStop, 0)=-1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L762] CALL 0 BCSP_PnpAdd(0) [L734] 0 int status; [L735] CALL, EXPR 0 BCSP_IoIncrement() [L703] 0 int lsf = stoppingFlag; [L705] COND FALSE 0 !(\read(lsf)) VAL [lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L745] 1 stoppingFlag = 1 [L747] CALL 1 BCSP_IoDecrement() [L725] 1 int pending; [L726] CALL, EXPR 1 dec() [L719] 1 pendingIo-- [L720] 1 int tmp = pendingIo; [L722] 1 return tmp; VAL [\result=0, pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1, tmp=0] [L709] 0 int lp = pendingIo; VAL [lp=0, lsf=0, pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L726] RET, EXPR 1 dec() [L726] 1 pending = dec() [L727] COND TRUE 1 pending == 0 [L729] 1 stoppingEvent = 1 [L747] RET 1 BCSP_IoDecrement() [L712] EXPR 0 pendingIo = lp + 1 [L707-L714] 0 { __VERIFIER_atomic_begin(); int lp = pendingIo; __VERIFIER_atomic_end(); __VERIFIER_atomic_begin(); pendingIo = lp + 1; __VERIFIER_atomic_end(); } [L715] 0 return 0; [L735] RET, EXPR 0 BCSP_IoIncrement() [L749] 1 int lse = stoppingEvent; [L751] CALL 1 assume_abort_if_not(lse) [L686] COND FALSE 1 !(!cond) [L751] RET 1 assume_abort_if_not(lse) [L752] 1 stopped = 1 [L753] 1 return 0; [L735] 0 status = BCSP_IoIncrement() [L736] COND TRUE 0 status == 0 [L737] EXPR 0 !stopped [L737] 0 int local_assertion = !stopped; [L738] CALL 0 __VERIFIER_assert(local_assertion) [L689] COND TRUE 0 !(cond) [L690] CALL 0 reach_error() [L683] COND FALSE 0 !(0) [L683] 0 __assert_fail ("0", "assert.h", 6, __extension__ __PRETTY_FUNCTION__) VAL [pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] - UnprovableResult [Line: 745]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 749]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 752]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 757]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 737]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 761]: 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, 171 locations, 28 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: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-25 02:23:26,662 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...