/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 06:00:43,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 06:00:44,052 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 06:00:44,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 06:00:44,056 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 06:00:44,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 06:00:44,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 06:00:44,085 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 06:00:44,086 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 06:00:44,088 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 06:00:44,088 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 06:00:44,089 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 06:00:44,089 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 06:00:44,090 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 06:00:44,090 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 06:00:44,090 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 06:00:44,090 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 06:00:44,090 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 06:00:44,090 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 06:00:44,091 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 06:00:44,091 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 06:00:44,091 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 06:00:44,091 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 06:00:44,091 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 06:00:44,092 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 06:00:44,092 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 06:00:44,092 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 06:00:44,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:00:44,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 06:00:44,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 06:00:44,093 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 06:00:44,093 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 06:00:44,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 06:00:44,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 06:00:44,093 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 06:00:44,094 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 06:00:44,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 06:00:44,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 06:00:44,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 06:00:44,401 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 06:00:44,401 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 06:00:44,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i [2023-08-26 06:00:45,359 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 06:00:45,595 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 06:00:45,595 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2.i [2023-08-26 06:00:45,615 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/427d8b211/3d630905f20f4da59ff4ab5131b1f64a/FLAG5e29c159f [2023-08-26 06:00:45,626 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/427d8b211/3d630905f20f4da59ff4ab5131b1f64a [2023-08-26 06:00:45,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 06:00:45,630 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 06:00:45,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 06:00:45,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 06:00:45,634 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 06:00:45,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:00:45" (1/1) ... [2023-08-26 06:00:45,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c0de83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:00:45, skipping insertion in model container [2023-08-26 06:00:45,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:00:45" (1/1) ... [2023-08-26 06:00:45,677 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 06:00:45,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:00:45,915 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 06:00:45,927 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-26 06:00:45,928 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-26 06:00:45,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:00:45,967 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 06:00:45,967 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 06:00:45,972 INFO L206 MainTranslator]: Completed translation [2023-08-26 06:00:45,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:00:45 WrapperNode [2023-08-26 06:00:45,972 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 06:00:45,973 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 06:00:45,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 06:00:45,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 06:00:45,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:00:45" (1/1) ... [2023-08-26 06:00:45,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:00:45" (1/1) ... [2023-08-26 06:00:46,006 INFO L138 Inliner]: procedures = 175, calls = 33, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 176 [2023-08-26 06:00:46,006 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 06:00:46,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 06:00:46,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 06:00:46,007 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 06:00:46,012 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:00:45" (1/1) ... [2023-08-26 06:00:46,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:00:45" (1/1) ... [2023-08-26 06:00:46,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:00:45" (1/1) ... [2023-08-26 06:00:46,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:00:45" (1/1) ... [2023-08-26 06:00:46,021 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:00:45" (1/1) ... [2023-08-26 06:00:46,022 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:00:45" (1/1) ... [2023-08-26 06:00:46,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:00:45" (1/1) ... [2023-08-26 06:00:46,024 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:00:45" (1/1) ... [2023-08-26 06:00:46,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 06:00:46,027 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 06:00:46,027 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 06:00:46,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 06:00:46,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:00:45" (1/1) ... [2023-08-26 06:00:46,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:00:46,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:00:46,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 06:00:46,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 06:00:46,086 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2023-08-26 06:00:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2023-08-26 06:00:46,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 06:00:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 06:00:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 06:00:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 06:00:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 06:00:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 06:00:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 06:00:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 06:00:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 06:00:46,088 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 06:00:46,192 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 06:00:46,193 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 06:00:46,450 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 06:00:46,489 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 06:00:46,490 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 06:00:46,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:00:46 BoogieIcfgContainer [2023-08-26 06:00:46,491 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 06:00:46,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 06:00:46,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 06:00:46,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 06:00:46,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 06:00:45" (1/3) ... [2023-08-26 06:00:46,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1d7ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:00:46, skipping insertion in model container [2023-08-26 06:00:46,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:00:45" (2/3) ... [2023-08-26 06:00:46,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1d7ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:00:46, skipping insertion in model container [2023-08-26 06:00:46,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:00:46" (3/3) ... [2023-08-26 06:00:46,507 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2023-08-26 06:00:46,518 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 06:00:46,518 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-26 06:00:46,518 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 06:00:46,561 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 06:00:46,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 147 transitions, 299 flow [2023-08-26 06:00:46,643 INFO L124 PetriNetUnfolderBase]: 7/146 cut-off events. [2023-08-26 06:00:46,643 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:00:46,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 146 events. 7/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 212 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2023-08-26 06:00:46,647 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 147 transitions, 299 flow [2023-08-26 06:00:46,650 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 146 transitions, 295 flow [2023-08-26 06:00:46,653 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 06:00:46,658 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 146 transitions, 295 flow [2023-08-26 06:00:46,660 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 146 transitions, 295 flow [2023-08-26 06:00:46,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 146 transitions, 295 flow [2023-08-26 06:00:46,678 INFO L124 PetriNetUnfolderBase]: 7/146 cut-off events. [2023-08-26 06:00:46,678 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:00:46,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 146 events. 7/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 212 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2023-08-26 06:00:46,681 INFO L119 LiptonReduction]: Number of co-enabled transitions 4958 [2023-08-26 06:00:49,144 INFO L134 LiptonReduction]: Checked pairs total: 11810 [2023-08-26 06:00:49,145 INFO L136 LiptonReduction]: Total number of compositions: 168 [2023-08-26 06:00:49,153 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 06:00:49,157 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;@4778d33a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 06:00:49,157 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-08-26 06:00:49,158 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 06:00:49,158 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 06:00:49,158 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:00:49,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:00:49,159 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 06:00:49,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 06:00:49,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:00:49,162 INFO L85 PathProgramCache]: Analyzing trace with hash 660, now seen corresponding path program 1 times [2023-08-26 06:00:49,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:00:49,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878042941] [2023-08-26 06:00:49,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:00:49,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:00:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:00:49,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:00:49,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:00:49,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878042941] [2023-08-26 06:00:49,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878042941] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:00:49,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:00:49,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 06:00:49,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719918590] [2023-08-26 06:00:49,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:00:49,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 06:00:49,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:00:49,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 06:00:49,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 06:00:49,255 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 315 [2023-08-26 06:00:49,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 87 flow. Second operand has 2 states, 2 states have (on average 120.5) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:00:49,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 315 [2023-08-26 06:00:49,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:00:49,328 INFO L124 PetriNetUnfolderBase]: 91/186 cut-off events. [2023-08-26 06:00:49,328 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:00:49,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 186 events. 91/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 641 event pairs, 64 based on Foata normal form. 9/147 useless extension candidates. Maximal degree in co-relation 355. Up to 174 conditions per place. [2023-08-26 06:00:49,332 INFO L140 encePairwiseOnDemand]: 297/315 looper letters, 21 selfloop transitions, 0 changer transitions 0/24 dead transitions. [2023-08-26 06:00:49,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 24 transitions, 93 flow [2023-08-26 06:00:49,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 06:00:49,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 06:00:49,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 279 transitions. [2023-08-26 06:00:49,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44285714285714284 [2023-08-26 06:00:49,346 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 279 transitions. [2023-08-26 06:00:49,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 279 transitions. [2023-08-26 06:00:49,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:00:49,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 279 transitions. [2023-08-26 06:00:49,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 139.5) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,356 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,357 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 87 flow. Second operand 2 states and 279 transitions. [2023-08-26 06:00:49,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 24 transitions, 93 flow [2023-08-26 06:00:49,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 24 transitions, 92 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:00:49,359 INFO L231 Difference]: Finished difference. Result has 25 places, 24 transitions, 50 flow [2023-08-26 06:00:49,361 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=50, PETRI_PLACES=25, PETRI_TRANSITIONS=24} [2023-08-26 06:00:49,363 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -17 predicate places. [2023-08-26 06:00:49,363 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 24 transitions, 50 flow [2023-08-26 06:00:49,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 120.5) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:00:49,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 06:00:49,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 06:00:49,364 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 06:00:49,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:00:49,365 INFO L85 PathProgramCache]: Analyzing trace with hash 632457626, now seen corresponding path program 1 times [2023-08-26 06:00:49,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:00:49,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429444152] [2023-08-26 06:00:49,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:00:49,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:00:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:00:49,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:00:49,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:00:49,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429444152] [2023-08-26 06:00:49,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429444152] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:00:49,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:00:49,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:00:49,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108625784] [2023-08-26 06:00:49,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:00:49,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:00:49,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:00:49,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:00:49,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:00:49,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 315 [2023-08-26 06:00:49,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 24 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:00:49,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 315 [2023-08-26 06:00:49,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:00:49,530 INFO L124 PetriNetUnfolderBase]: 154/331 cut-off events. [2023-08-26 06:00:49,530 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:00:49,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 331 events. 154/331 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1538 event pairs, 42 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 633. Up to 153 conditions per place. [2023-08-26 06:00:49,532 INFO L140 encePairwiseOnDemand]: 311/315 looper letters, 35 selfloop transitions, 3 changer transitions 0/41 dead transitions. [2023-08-26 06:00:49,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 41 transitions, 160 flow [2023-08-26 06:00:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:00:49,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:00:49,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2023-08-26 06:00:49,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4158730158730159 [2023-08-26 06:00:49,534 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 393 transitions. [2023-08-26 06:00:49,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 393 transitions. [2023-08-26 06:00:49,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:00:49,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 393 transitions. [2023-08-26 06:00:49,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 315.0) internal successors, (1260), 4 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,539 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 315.0) internal successors, (1260), 4 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,539 INFO L175 Difference]: Start difference. First operand has 25 places, 24 transitions, 50 flow. Second operand 3 states and 393 transitions. [2023-08-26 06:00:49,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 41 transitions, 160 flow [2023-08-26 06:00:49,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 41 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:00:49,540 INFO L231 Difference]: Finished difference. Result has 29 places, 25 transitions, 68 flow [2023-08-26 06:00:49,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=29, PETRI_TRANSITIONS=25} [2023-08-26 06:00:49,541 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -13 predicate places. [2023-08-26 06:00:49,541 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 68 flow [2023-08-26 06:00:49,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:00:49,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 06:00:49,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 06:00:49,544 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 06:00:49,545 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:00:49,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1871142353, now seen corresponding path program 1 times [2023-08-26 06:00:49,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:00:49,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183716555] [2023-08-26 06:00:49,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:00:49,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:00:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:00:49,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:00:49,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:00:49,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183716555] [2023-08-26 06:00:49,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183716555] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:00:49,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:00:49,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 06:00:49,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728144771] [2023-08-26 06:00:49,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:00:49,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:00:49,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:00:49,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:00:49,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:00:49,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 315 [2023-08-26 06:00:49,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 68 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) [2023-08-26 06:00:49,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:00:49,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 315 [2023-08-26 06:00:49,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:00:49,660 INFO L124 PetriNetUnfolderBase]: 161/354 cut-off events. [2023-08-26 06:00:49,661 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2023-08-26 06:00:49,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 354 events. 161/354 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1643 event pairs, 109 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 716. Up to 301 conditions per place. [2023-08-26 06:00:49,662 INFO L140 encePairwiseOnDemand]: 312/315 looper letters, 26 selfloop transitions, 2 changer transitions 2/33 dead transitions. [2023-08-26 06:00:49,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 33 transitions, 144 flow [2023-08-26 06:00:49,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:00:49,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:00:49,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2023-08-26 06:00:49,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3968253968253968 [2023-08-26 06:00:49,663 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 375 transitions. [2023-08-26 06:00:49,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 375 transitions. [2023-08-26 06:00:49,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:00:49,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 375 transitions. [2023-08-26 06:00:49,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 315.0) internal successors, (1260), 4 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,666 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 315.0) internal successors, (1260), 4 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,666 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 68 flow. Second operand 3 states and 375 transitions. [2023-08-26 06:00:49,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 33 transitions, 144 flow [2023-08-26 06:00:49,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 33 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 06:00:49,668 INFO L231 Difference]: Finished difference. Result has 30 places, 26 transitions, 74 flow [2023-08-26 06:00:49,668 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=30, PETRI_TRANSITIONS=26} [2023-08-26 06:00:49,669 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -12 predicate places. [2023-08-26 06:00:49,669 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 26 transitions, 74 flow [2023-08-26 06:00:49,669 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) [2023-08-26 06:00:49,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:00:49,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:00:49,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 06:00:49,672 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 06:00:49,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:00:49,672 INFO L85 PathProgramCache]: Analyzing trace with hash -2108772316, now seen corresponding path program 1 times [2023-08-26 06:00:49,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:00:49,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743264345] [2023-08-26 06:00:49,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:00:49,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:00:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:00:49,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:00:49,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:00:49,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743264345] [2023-08-26 06:00:49,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743264345] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:00:49,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:00:49,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:00:49,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009908345] [2023-08-26 06:00:49,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:00:49,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:00:49,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:00:49,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:00:49,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:00:49,719 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 315 [2023-08-26 06:00:49,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:00:49,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 315 [2023-08-26 06:00:49,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:00:49,780 INFO L124 PetriNetUnfolderBase]: 266/538 cut-off events. [2023-08-26 06:00:49,780 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2023-08-26 06:00:49,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1182 conditions, 538 events. 266/538 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2508 event pairs, 102 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 1176. Up to 310 conditions per place. [2023-08-26 06:00:49,782 INFO L140 encePairwiseOnDemand]: 311/315 looper letters, 38 selfloop transitions, 3 changer transitions 0/41 dead transitions. [2023-08-26 06:00:49,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 41 transitions, 188 flow [2023-08-26 06:00:49,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:00:49,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:00:49,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-08-26 06:00:49,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39470899470899473 [2023-08-26 06:00:49,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-08-26 06:00:49,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-08-26 06:00:49,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:00:49,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-08-26 06:00:49,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 315.0) internal successors, (1260), 4 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,787 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 315.0) internal successors, (1260), 4 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,787 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 74 flow. Second operand 3 states and 373 transitions. [2023-08-26 06:00:49,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 41 transitions, 188 flow [2023-08-26 06:00:49,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 41 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:00:49,788 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 94 flow [2023-08-26 06:00:49,788 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2023-08-26 06:00:49,789 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -9 predicate places. [2023-08-26 06:00:49,789 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 94 flow [2023-08-26 06:00:49,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:00:49,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:00:49,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 06:00:49,789 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 06:00:49,790 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:00:49,790 INFO L85 PathProgramCache]: Analyzing trace with hash -947431709, now seen corresponding path program 1 times [2023-08-26 06:00:49,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:00:49,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510788951] [2023-08-26 06:00:49,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:00:49,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:00:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:00:49,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:00:49,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:00:49,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510788951] [2023-08-26 06:00:49,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510788951] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:00:49,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:00:49,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 06:00:49,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980526857] [2023-08-26 06:00:49,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:00:49,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:00:49,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:00:49,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:00:49,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:00:49,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 315 [2023-08-26 06:00:49,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:00:49,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 315 [2023-08-26 06:00:49,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:00:49,911 INFO L124 PetriNetUnfolderBase]: 217/476 cut-off events. [2023-08-26 06:00:49,911 INFO L125 PetriNetUnfolderBase]: For 170/172 co-relation queries the response was YES. [2023-08-26 06:00:49,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1108 conditions, 476 events. 217/476 cut-off events. For 170/172 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2342 event pairs, 94 based on Foata normal form. 2/402 useless extension candidates. Maximal degree in co-relation 1101. Up to 298 conditions per place. [2023-08-26 06:00:49,913 INFO L140 encePairwiseOnDemand]: 311/315 looper letters, 32 selfloop transitions, 3 changer transitions 2/41 dead transitions. [2023-08-26 06:00:49,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 41 transitions, 214 flow [2023-08-26 06:00:49,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:00:49,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:00:49,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2023-08-26 06:00:49,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4042328042328042 [2023-08-26 06:00:49,914 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2023-08-26 06:00:49,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2023-08-26 06:00:49,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:00:49,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2023-08-26 06:00:49,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 315.0) internal successors, (1260), 4 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,917 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 315.0) internal successors, (1260), 4 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,917 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 94 flow. Second operand 3 states and 382 transitions. [2023-08-26 06:00:49,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 41 transitions, 214 flow [2023-08-26 06:00:49,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 41 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 06:00:49,919 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 104 flow [2023-08-26 06:00:49,919 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2023-08-26 06:00:49,919 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -7 predicate places. [2023-08-26 06:00:49,920 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 104 flow [2023-08-26 06:00:49,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:49,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:00:49,920 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:00:49,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 06:00:49,920 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 06:00:49,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:00:49,920 INFO L85 PathProgramCache]: Analyzing trace with hash 223937201, now seen corresponding path program 1 times [2023-08-26 06:00:49,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:00:49,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583658038] [2023-08-26 06:00:49,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:00:49,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:00:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:00:49,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:00:49,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:00:49,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583658038] [2023-08-26 06:00:49,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583658038] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:00:49,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:00:49,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:00:49,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241107865] [2023-08-26 06:00:49,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:00:49,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:00:49,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:00:49,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:00:49,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:00:49,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 315 [2023-08-26 06:00:49,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 104 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) [2023-08-26 06:00:49,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:00:49,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 315 [2023-08-26 06:00:49,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:00:50,016 INFO L124 PetriNetUnfolderBase]: 225/468 cut-off events. [2023-08-26 06:00:50,016 INFO L125 PetriNetUnfolderBase]: For 168/168 co-relation queries the response was YES. [2023-08-26 06:00:50,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1191 conditions, 468 events. 225/468 cut-off events. For 168/168 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2129 event pairs, 123 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 1183. Up to 398 conditions per place. [2023-08-26 06:00:50,018 INFO L140 encePairwiseOnDemand]: 311/315 looper letters, 28 selfloop transitions, 4 changer transitions 11/43 dead transitions. [2023-08-26 06:00:50,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 43 transitions, 244 flow [2023-08-26 06:00:50,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:00:50,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:00:50,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 365 transitions. [2023-08-26 06:00:50,019 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3862433862433862 [2023-08-26 06:00:50,019 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 365 transitions. [2023-08-26 06:00:50,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 365 transitions. [2023-08-26 06:00:50,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:00:50,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 365 transitions. [2023-08-26 06:00:50,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:50,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 315.0) internal successors, (1260), 4 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:50,022 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 315.0) internal successors, (1260), 4 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:00:50,022 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 104 flow. Second operand 3 states and 365 transitions. [2023-08-26 06:00:50,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 43 transitions, 244 flow [2023-08-26 06:00:50,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 236 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 06:00:50,025 INFO L231 Difference]: Finished difference. Result has 35 places, 26 transitions, 106 flow [2023-08-26 06:00:50,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=35, PETRI_TRANSITIONS=26} [2023-08-26 06:00:50,027 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -7 predicate places. [2023-08-26 06:00:50,027 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 26 transitions, 106 flow [2023-08-26 06:00:50,027 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) [2023-08-26 06:00:50,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:00:50,027 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:00:50,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 06:00:50,028 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 06:00:50,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:00:50,028 INFO L85 PathProgramCache]: Analyzing trace with hash 699643987, now seen corresponding path program 1 times [2023-08-26 06:00:50,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:00:50,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584108053] [2023-08-26 06:00:50,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:00:50,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:00:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:00:50,037 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 06:00:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:00:50,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 06:00:50,057 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 06:00:50,058 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (27 of 28 remaining) [2023-08-26 06:00:50,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2023-08-26 06:00:50,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2023-08-26 06:00:50,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2023-08-26 06:00:50,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2023-08-26 06:00:50,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2023-08-26 06:00:50,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2023-08-26 06:00:50,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2023-08-26 06:00:50,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2023-08-26 06:00:50,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2023-08-26 06:00:50,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2023-08-26 06:00:50,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2023-08-26 06:00:50,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2023-08-26 06:00:50,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2023-08-26 06:00:50,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2023-08-26 06:00:50,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2023-08-26 06:00:50,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2023-08-26 06:00:50,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2023-08-26 06:00:50,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2023-08-26 06:00:50,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2023-08-26 06:00:50,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 28 remaining) [2023-08-26 06:00:50,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2023-08-26 06:00:50,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2023-08-26 06:00:50,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2023-08-26 06:00:50,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2023-08-26 06:00:50,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2023-08-26 06:00:50,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2023-08-26 06:00:50,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2023-08-26 06:00:50,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 06:00:50,061 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:00:50,065 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 06:00:50,065 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 06:00:50,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 06:00:50 BasicIcfg [2023-08-26 06:00:50,082 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 06:00:50,083 INFO L158 Benchmark]: Toolchain (without parser) took 4452.42ms. Allocated memory was 369.1MB in the beginning and 467.7MB in the end (delta: 98.6MB). Free memory was 343.4MB in the beginning and 364.2MB in the end (delta: -20.8MB). Peak memory consumption was 78.2MB. Max. memory is 16.0GB. [2023-08-26 06:00:50,083 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 369.1MB. Free memory is still 345.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 06:00:50,083 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.24ms. Allocated memory is still 369.1MB. Free memory was 343.4MB in the beginning and 323.0MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 06:00:50,083 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.19ms. Allocated memory is still 369.1MB. 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. [2023-08-26 06:00:50,083 INFO L158 Benchmark]: Boogie Preprocessor took 19.47ms. Allocated memory is still 369.1MB. Free memory was 320.9MB in the beginning and 319.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 06:00:50,084 INFO L158 Benchmark]: RCFGBuilder took 464.82ms. Allocated memory is still 369.1MB. Free memory was 319.3MB in the beginning and 296.3MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-26 06:00:50,084 INFO L158 Benchmark]: TraceAbstraction took 3589.54ms. Allocated memory was 369.1MB in the beginning and 467.7MB in the end (delta: 98.6MB). Free memory was 295.8MB in the beginning and 364.2MB in the end (delta: -68.4MB). Peak memory consumption was 32.1MB. Max. memory is 16.0GB. [2023-08-26 06:00:50,085 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 369.1MB. Free memory is still 345.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 340.24ms. Allocated memory is still 369.1MB. Free memory was 343.4MB in the beginning and 323.0MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 33.19ms. Allocated memory is still 369.1MB. 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. * Boogie Preprocessor took 19.47ms. Allocated memory is still 369.1MB. Free memory was 320.9MB in the beginning and 319.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 464.82ms. Allocated memory is still 369.1MB. Free memory was 319.3MB in the beginning and 296.3MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 3589.54ms. Allocated memory was 369.1MB in the beginning and 467.7MB in the end (delta: 98.6MB). Free memory was 295.8MB in the beginning and 364.2MB in the end (delta: -68.4MB). Peak memory consumption was 32.1MB. 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, 143 PlacesBefore, 42 PlacesAfterwards, 146 TransitionsBefore, 42 TransitionsAfterwards, 4958 CoEnabledTransitionPairs, 8 FixpointIterations, 51 TrivialSequentialCompositions, 96 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 168 TotalNumberOfCompositions, 11810 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6996, independent: 6652, independent conditional: 0, independent unconditional: 6652, dependent: 344, dependent conditional: 0, dependent unconditional: 344, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2992, independent: 2926, independent conditional: 0, independent unconditional: 2926, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6996, independent: 3726, independent conditional: 0, independent unconditional: 3726, dependent: 278, dependent conditional: 0, dependent unconditional: 278, unknown: 2992, unknown conditional: 0, unknown unconditional: 2992] , Statistics on independence cache: Total cache size (in pairs): 197, Positive cache size: 176, Positive conditional cache size: 0, Positive unconditional cache size: 176, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, 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; [L755] 0 pthread_t t; [L756] 0 pendingIo = 1 [L757] 0 stoppingFlag = 0 [L758] 0 stoppingEvent = 0 [L759] 0 stopped = 0 [L760] 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}] [L761] 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] [L744] 1 stoppingFlag = 1 [L746] 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 [L746] 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() [L748] 1 int lse = stoppingEvent; [L750] CALL 1 assume_abort_if_not(lse) [L735] 0 status = BCSP_IoIncrement() [L736] COND TRUE 0 status == 0 [L737] EXPR 0 !stopped VAL [arg={0:0}, arg={0:0}, pendingIo=1, status=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L686] COND FALSE 1 !(!cond) [L750] RET 1 assume_abort_if_not(lse) [L751] 1 stopped = 1 VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] [L737] EXPR 0 !stopped [L737] CALL 0 __VERIFIER_assert(!stopped) [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: 744]: 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: 748]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 751]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 756]: 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: 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: 760]: 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, 178 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: 3.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 271 IncrementalHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 4 mSDtfsCounter, 271 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=6, InterpolantAutomatonStates: 17, 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, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 55 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-26 06:00:50,103 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...