./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1fe12ce8951e45860142b9cebaa325eef531c18fa917882c03ee5396afb187f5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:52:48,525 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:52:48,592 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:52:48,597 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:52:48,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:52:48,617 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:52:48,617 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:52:48,617 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:52:48,618 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:52:48,621 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:52:48,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:52:48,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:52:48,621 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:52:48,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:52:48,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:52:48,622 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:52:48,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:52:48,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:52:48,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:52:48,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:52:48,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:52:48,624 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:52:48,624 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:52:48,625 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:52:48,625 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:52:48,625 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:52:48,625 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:52:48,625 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:52:48,625 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:52:48,625 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:52:48,626 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:52:48,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:52:48,626 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:52:48,626 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:52:48,626 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:52:48,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:52:48,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:52:48,627 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:52:48,627 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:52:48,627 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:52:48,627 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:52:48,628 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fe12ce8951e45860142b9cebaa325eef531c18fa917882c03ee5396afb187f5 [2024-11-19 05:52:48,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:52:48,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:52:48,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:52:48,827 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:52:48,827 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:52:48,828 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i [2024-11-19 05:52:50,031 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:52:50,246 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:52:50,246 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i [2024-11-19 05:52:50,260 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54519d2d2/6e2221c776504d5c9cf8e355032688b9/FLAG62c6b5509 [2024-11-19 05:52:50,609 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54519d2d2/6e2221c776504d5c9cf8e355032688b9 [2024-11-19 05:52:50,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:52:50,612 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:52:50,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:52:50,613 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:52:50,617 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:52:50,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:52:50" (1/1) ... [2024-11-19 05:52:50,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe9476e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:52:50, skipping insertion in model container [2024-11-19 05:52:50,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:52:50" (1/1) ... [2024-11-19 05:52:50,654 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:52:50,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:52:51,007 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:52:51,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:52:51,080 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:52:51,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:52:51 WrapperNode [2024-11-19 05:52:51,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:52:51,081 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:52:51,081 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:52:51,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:52:51,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:52:51" (1/1) ... [2024-11-19 05:52:51,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:52:51" (1/1) ... [2024-11-19 05:52:51,120 INFO L138 Inliner]: procedures = 173, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 146 [2024-11-19 05:52:51,122 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:52:51,122 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:52:51,122 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:52:51,122 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:52:51,133 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:52:51" (1/1) ... [2024-11-19 05:52:51,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:52:51" (1/1) ... [2024-11-19 05:52:51,139 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:52:51" (1/1) ... [2024-11-19 05:52:51,139 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:52:51" (1/1) ... [2024-11-19 05:52:51,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:52:51" (1/1) ... [2024-11-19 05:52:51,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:52:51" (1/1) ... [2024-11-19 05:52:51,148 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:52:51" (1/1) ... [2024-11-19 05:52:51,149 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:52:51" (1/1) ... [2024-11-19 05:52:51,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:52:51,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:52:51,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:52:51,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:52:51,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:52:51" (1/1) ... [2024-11-19 05:52:51,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:52:51,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:52:51,175 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 05:52:51,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 05:52:51,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:52:51,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:52:51,214 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:52:51,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:52:51,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 05:52:51,214 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:52:51,214 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:52:51,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 05:52:51,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:52:51,214 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:52:51,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:52:51,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:52:51,216 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:52:51,312 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:52:51,314 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:52:51,497 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:52:51,498 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:52:51,532 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:52:51,534 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-19 05:52:51,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:52:51 BoogieIcfgContainer [2024-11-19 05:52:51,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:52:51,536 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:52:51,536 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:52:51,539 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:52:51,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:52:50" (1/3) ... [2024-11-19 05:52:51,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c85c4d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:52:51, skipping insertion in model container [2024-11-19 05:52:51,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:52:51" (2/3) ... [2024-11-19 05:52:51,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c85c4d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:52:51, skipping insertion in model container [2024-11-19 05:52:51,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:52:51" (3/3) ... [2024-11-19 05:52:51,543 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_05-lockfuns_racefree.i [2024-11-19 05:52:51,556 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:52:51,556 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-19 05:52:51,557 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:52:51,624 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 05:52:51,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 148 transitions, 303 flow [2024-11-19 05:52:51,711 INFO L124 PetriNetUnfolderBase]: 19/211 cut-off events. [2024-11-19 05:52:51,711 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:52:51,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 211 events. 19/211 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 651 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 117. Up to 4 conditions per place. [2024-11-19 05:52:51,722 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 148 transitions, 303 flow [2024-11-19 05:52:51,726 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 148 transitions, 303 flow [2024-11-19 05:52:51,732 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:52:51,736 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5d79af8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:52:51,737 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-19 05:52:51,746 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:52:51,746 INFO L124 PetriNetUnfolderBase]: 1/47 cut-off events. [2024-11-19 05:52:51,747 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:52:51,747 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:52:51,747 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:52:51,748 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 05:52:51,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:52:51,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1574672023, now seen corresponding path program 1 times [2024-11-19 05:52:51,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:52:51,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040881025] [2024-11-19 05:52:51,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:52:51,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:52:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:52:52,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:52:52,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:52:52,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040881025] [2024-11-19 05:52:52,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040881025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:52:52,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:52:52,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:52:52,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668355104] [2024-11-19 05:52:52,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:52:52,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:52:52,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:52:52,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:52:52,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:52:52,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 148 [2024-11-19 05:52:52,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 148 transitions, 303 flow. Second operand has 6 states, 6 states have (on average 106.5) internal successors, (639), 6 states have internal predecessors, (639), 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) [2024-11-19 05:52:52,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:52:52,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 148 [2024-11-19 05:52:52,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:52:52,720 INFO L124 PetriNetUnfolderBase]: 109/637 cut-off events. [2024-11-19 05:52:52,721 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 05:52:52,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 905 conditions, 637 events. 109/637 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3765 event pairs, 12 based on Foata normal form. 116/701 useless extension candidates. Maximal degree in co-relation 786. Up to 186 conditions per place. [2024-11-19 05:52:52,728 INFO L140 encePairwiseOnDemand]: 130/148 looper letters, 48 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2024-11-19 05:52:52,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 157 transitions, 427 flow [2024-11-19 05:52:52,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:52:52,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:52:52,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 720 transitions. [2024-11-19 05:52:52,746 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8108108108108109 [2024-11-19 05:52:52,748 INFO L175 Difference]: Start difference. First operand has 138 places, 148 transitions, 303 flow. Second operand 6 states and 720 transitions. [2024-11-19 05:52:52,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 157 transitions, 427 flow [2024-11-19 05:52:52,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 157 transitions, 427 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:52:52,756 INFO L231 Difference]: Finished difference. Result has 140 places, 133 transitions, 283 flow [2024-11-19 05:52:52,758 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=283, PETRI_PLACES=140, PETRI_TRANSITIONS=133} [2024-11-19 05:52:52,761 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 2 predicate places. [2024-11-19 05:52:52,762 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 133 transitions, 283 flow [2024-11-19 05:52:52,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 106.5) internal successors, (639), 6 states have internal predecessors, (639), 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) [2024-11-19 05:52:52,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:52:52,763 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:52:52,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:52:52,764 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 05:52:52,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:52:52,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1940040889, now seen corresponding path program 1 times [2024-11-19 05:52:52,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:52:52,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644269147] [2024-11-19 05:52:52,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:52:52,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:52:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:52:52,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:52:52,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:52:52,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644269147] [2024-11-19 05:52:52,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644269147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:52:52,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:52:52,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:52:52,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990075634] [2024-11-19 05:52:52,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:52:52,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:52:52,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:52:52,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:52:52,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:52:52,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 148 [2024-11-19 05:52:52,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 133 transitions, 283 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2024-11-19 05:52:52,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:52:52,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 148 [2024-11-19 05:52:52,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:52:52,901 INFO L124 PetriNetUnfolderBase]: 48/523 cut-off events. [2024-11-19 05:52:52,901 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-19 05:52:52,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 664 conditions, 523 events. 48/523 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2466 event pairs, 35 based on Foata normal form. 1/475 useless extension candidates. Maximal degree in co-relation 590. Up to 108 conditions per place. [2024-11-19 05:52:52,903 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 22 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2024-11-19 05:52:52,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 139 transitions, 343 flow [2024-11-19 05:52:52,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:52:52,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:52:52,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2024-11-19 05:52:52,905 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8468468468468469 [2024-11-19 05:52:52,905 INFO L175 Difference]: Start difference. First operand has 140 places, 133 transitions, 283 flow. Second operand 3 states and 376 transitions. [2024-11-19 05:52:52,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 139 transitions, 343 flow [2024-11-19 05:52:52,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 139 transitions, 333 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:52:52,908 INFO L231 Difference]: Finished difference. Result has 138 places, 133 transitions, 281 flow [2024-11-19 05:52:52,908 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=138, PETRI_TRANSITIONS=133} [2024-11-19 05:52:52,909 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 0 predicate places. [2024-11-19 05:52:52,909 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 133 transitions, 281 flow [2024-11-19 05:52:52,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2024-11-19 05:52:52,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:52:52,909 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:52:52,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:52:52,910 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 05:52:52,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:52:52,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1208707053, now seen corresponding path program 1 times [2024-11-19 05:52:52,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:52:52,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668581459] [2024-11-19 05:52:52,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:52:52,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:52:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:52:52,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:52:52,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:52:52,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668581459] [2024-11-19 05:52:52,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668581459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:52:52,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:52:52,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:52:52,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337506929] [2024-11-19 05:52:52,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:52:52,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:52:52,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:52:52,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:52:52,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:52:52,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 148 [2024-11-19 05:52:52,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 133 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2024-11-19 05:52:52,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:52:52,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 148 [2024-11-19 05:52:52,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:52:53,069 INFO L124 PetriNetUnfolderBase]: 91/830 cut-off events. [2024-11-19 05:52:53,070 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-19 05:52:53,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 830 events. 91/830 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4957 event pairs, 30 based on Foata normal form. 0/761 useless extension candidates. Maximal degree in co-relation 1010. Up to 125 conditions per place. [2024-11-19 05:52:53,074 INFO L140 encePairwiseOnDemand]: 139/148 looper letters, 30 selfloop transitions, 6 changer transitions 0/146 dead transitions. [2024-11-19 05:52:53,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 146 transitions, 382 flow [2024-11-19 05:52:53,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:52:53,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:52:53,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2024-11-19 05:52:53,076 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8445945945945946 [2024-11-19 05:52:53,076 INFO L175 Difference]: Start difference. First operand has 138 places, 133 transitions, 281 flow. Second operand 3 states and 375 transitions. [2024-11-19 05:52:53,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 146 transitions, 382 flow [2024-11-19 05:52:53,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 146 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:52:53,079 INFO L231 Difference]: Finished difference. Result has 138 places, 135 transitions, 315 flow [2024-11-19 05:52:53,079 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=315, PETRI_PLACES=138, PETRI_TRANSITIONS=135} [2024-11-19 05:52:53,080 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 0 predicate places. [2024-11-19 05:52:53,080 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 135 transitions, 315 flow [2024-11-19 05:52:53,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2024-11-19 05:52:53,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:52:53,081 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:52:53,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:52:53,082 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 05:52:53,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:52:53,083 INFO L85 PathProgramCache]: Analyzing trace with hash 900544954, now seen corresponding path program 1 times [2024-11-19 05:52:53,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:52:53,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902280873] [2024-11-19 05:52:53,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:52:53,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:52:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:52:53,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:52:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:52:53,143 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:52:53,144 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:52:53,144 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-19 05:52:53,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-19 05:52:53,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-19 05:52:53,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-19 05:52:53,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-19 05:52:53,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-19 05:52:53,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-19 05:52:53,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-19 05:52:53,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-19 05:52:53,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-19 05:52:53,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-19 05:52:53,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-19 05:52:53,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:52:53,150 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 05:52:53,152 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:52:53,152 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 05:52:53,175 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 05:52:53,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 201 transitions, 418 flow [2024-11-19 05:52:53,217 INFO L124 PetriNetUnfolderBase]: 34/355 cut-off events. [2024-11-19 05:52:53,218 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 05:52:53,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 355 events. 34/355 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1268 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 213. Up to 8 conditions per place. [2024-11-19 05:52:53,221 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 201 transitions, 418 flow [2024-11-19 05:52:53,224 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 201 transitions, 418 flow [2024-11-19 05:52:53,225 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:52:53,226 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5d79af8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:52:53,227 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-19 05:52:53,231 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:52:53,231 INFO L124 PetriNetUnfolderBase]: 1/47 cut-off events. [2024-11-19 05:52:53,231 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:52:53,232 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:52:53,233 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:52:53,233 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:52:53,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:52:53,233 INFO L85 PathProgramCache]: Analyzing trace with hash 468291648, now seen corresponding path program 1 times [2024-11-19 05:52:53,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:52:53,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400929787] [2024-11-19 05:52:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:52:53,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:52:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:52:53,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:52:53,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:52:53,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400929787] [2024-11-19 05:52:53,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400929787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:52:53,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:52:53,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:52:53,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25638569] [2024-11-19 05:52:53,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:52:53,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:52:53,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:52:53,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:52:53,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:52:53,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 201 [2024-11-19 05:52:53,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 201 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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) [2024-11-19 05:52:53,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:52:53,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 201 [2024-11-19 05:52:53,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:52:54,360 INFO L124 PetriNetUnfolderBase]: 1724/7651 cut-off events. [2024-11-19 05:52:54,360 INFO L125 PetriNetUnfolderBase]: For 83/100 co-relation queries the response was YES. [2024-11-19 05:52:54,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10556 conditions, 7651 events. 1724/7651 cut-off events. For 83/100 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 79186 event pairs, 844 based on Foata normal form. 1383/8275 useless extension candidates. Maximal degree in co-relation 3207. Up to 2030 conditions per place. [2024-11-19 05:52:54,401 INFO L140 encePairwiseOnDemand]: 177/201 looper letters, 80 selfloop transitions, 5 changer transitions 0/228 dead transitions. [2024-11-19 05:52:54,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 228 transitions, 642 flow [2024-11-19 05:52:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:52:54,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:52:54,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1016 transitions. [2024-11-19 05:52:54,404 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8424543946932007 [2024-11-19 05:52:54,404 INFO L175 Difference]: Start difference. First operand has 186 places, 201 transitions, 418 flow. Second operand 6 states and 1016 transitions. [2024-11-19 05:52:54,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 228 transitions, 642 flow [2024-11-19 05:52:54,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 228 transitions, 642 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:52:54,408 INFO L231 Difference]: Finished difference. Result has 188 places, 180 transitions, 386 flow [2024-11-19 05:52:54,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=386, PETRI_PLACES=188, PETRI_TRANSITIONS=180} [2024-11-19 05:52:54,409 INFO L277 CegarLoopForPetriNet]: 186 programPoint places, 2 predicate places. [2024-11-19 05:52:54,409 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 180 transitions, 386 flow [2024-11-19 05:52:54,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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) [2024-11-19 05:52:54,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:52:54,410 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:52:54,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:52:54,410 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:52:54,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:52:54,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1248546032, now seen corresponding path program 1 times [2024-11-19 05:52:54,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:52:54,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135607667] [2024-11-19 05:52:54,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:52:54,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:52:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:52:54,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:52:54,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:52:54,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135607667] [2024-11-19 05:52:54,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135607667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:52:54,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:52:54,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:52:54,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691978421] [2024-11-19 05:52:54,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:52:54,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:52:54,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:52:54,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:52:54,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:52:54,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 201 [2024-11-19 05:52:54,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 180 transitions, 386 flow. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2024-11-19 05:52:54,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:52:54,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 201 [2024-11-19 05:52:54,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:52:54,919 INFO L124 PetriNetUnfolderBase]: 788/4609 cut-off events. [2024-11-19 05:52:54,919 INFO L125 PetriNetUnfolderBase]: For 170/170 co-relation queries the response was YES. [2024-11-19 05:52:54,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6207 conditions, 4609 events. 788/4609 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 44003 event pairs, 703 based on Foata normal form. 1/4183 useless extension candidates. Maximal degree in co-relation 4654. Up to 1303 conditions per place. [2024-11-19 05:52:54,938 INFO L140 encePairwiseOnDemand]: 198/201 looper letters, 31 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2024-11-19 05:52:54,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 187 transitions, 468 flow [2024-11-19 05:52:54,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:52:54,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:52:54,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 502 transitions. [2024-11-19 05:52:54,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8325041459369817 [2024-11-19 05:52:54,940 INFO L175 Difference]: Start difference. First operand has 188 places, 180 transitions, 386 flow. Second operand 3 states and 502 transitions. [2024-11-19 05:52:54,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 187 transitions, 468 flow [2024-11-19 05:52:54,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 187 transitions, 456 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:52:54,946 INFO L231 Difference]: Finished difference. Result has 186 places, 181 transitions, 388 flow [2024-11-19 05:52:54,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=388, PETRI_PLACES=186, PETRI_TRANSITIONS=181} [2024-11-19 05:52:54,947 INFO L277 CegarLoopForPetriNet]: 186 programPoint places, 0 predicate places. [2024-11-19 05:52:54,948 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 181 transitions, 388 flow [2024-11-19 05:52:54,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2024-11-19 05:52:54,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:52:54,948 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:52:54,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:52:54,948 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:52:54,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:52:54,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1050030490, now seen corresponding path program 1 times [2024-11-19 05:52:54,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:52:54,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432188670] [2024-11-19 05:52:54,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:52:54,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:52:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:52:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:52:54,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:52:54,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432188670] [2024-11-19 05:52:54,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432188670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:52:54,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:52:54,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:52:54,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944201789] [2024-11-19 05:52:54,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:52:54,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:52:54,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:52:54,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:52:54,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:52:54,999 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 201 [2024-11-19 05:52:54,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 181 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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) [2024-11-19 05:52:55,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:52:55,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 201 [2024-11-19 05:52:55,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:52:56,281 INFO L124 PetriNetUnfolderBase]: 3895/15099 cut-off events. [2024-11-19 05:52:56,281 INFO L125 PetriNetUnfolderBase]: For 238/238 co-relation queries the response was YES. [2024-11-19 05:52:56,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21639 conditions, 15099 events. 3895/15099 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 172273 event pairs, 1409 based on Foata normal form. 0/13576 useless extension candidates. Maximal degree in co-relation 21589. Up to 3516 conditions per place. [2024-11-19 05:52:56,395 INFO L140 encePairwiseOnDemand]: 182/201 looper letters, 58 selfloop transitions, 14 changer transitions 0/214 dead transitions. [2024-11-19 05:52:56,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 214 transitions, 609 flow [2024-11-19 05:52:56,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:52:56,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:52:56,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 506 transitions. [2024-11-19 05:52:56,398 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8391376451077943 [2024-11-19 05:52:56,398 INFO L175 Difference]: Start difference. First operand has 186 places, 181 transitions, 388 flow. Second operand 3 states and 506 transitions. [2024-11-19 05:52:56,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 214 transitions, 609 flow [2024-11-19 05:52:56,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 214 transitions, 607 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:52:56,403 INFO L231 Difference]: Finished difference. Result has 189 places, 195 transitions, 508 flow [2024-11-19 05:52:56,403 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=189, PETRI_TRANSITIONS=195} [2024-11-19 05:52:56,404 INFO L277 CegarLoopForPetriNet]: 186 programPoint places, 3 predicate places. [2024-11-19 05:52:56,405 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 195 transitions, 508 flow [2024-11-19 05:52:56,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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) [2024-11-19 05:52:56,405 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:52:56,405 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:52:56,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:52:56,405 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:52:56,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:52:56,406 INFO L85 PathProgramCache]: Analyzing trace with hash 297492844, now seen corresponding path program 1 times [2024-11-19 05:52:56,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:52:56,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139206698] [2024-11-19 05:52:56,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:52:56,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:52:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:52:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:52:56,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:52:56,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139206698] [2024-11-19 05:52:56,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139206698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:52:56,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:52:56,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:52:56,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019123167] [2024-11-19 05:52:56,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:52:56,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:52:56,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:52:56,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:52:56,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:52:56,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 201 [2024-11-19 05:52:56,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 195 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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) [2024-11-19 05:52:56,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:52:56,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 201 [2024-11-19 05:52:56,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:52:58,046 INFO L124 PetriNetUnfolderBase]: 4045/17167 cut-off events. [2024-11-19 05:52:58,046 INFO L125 PetriNetUnfolderBase]: For 4377/4541 co-relation queries the response was YES. [2024-11-19 05:52:58,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27922 conditions, 17167 events. 4045/17167 cut-off events. For 4377/4541 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 205513 event pairs, 2517 based on Foata normal form. 46/15665 useless extension candidates. Maximal degree in co-relation 26605. Up to 5540 conditions per place. [2024-11-19 05:52:58,119 INFO L140 encePairwiseOnDemand]: 192/201 looper letters, 52 selfloop transitions, 14 changer transitions 0/219 dead transitions. [2024-11-19 05:52:58,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 219 transitions, 726 flow [2024-11-19 05:52:58,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:52:58,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:52:58,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 500 transitions. [2024-11-19 05:52:58,121 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8291873963515755 [2024-11-19 05:52:58,121 INFO L175 Difference]: Start difference. First operand has 189 places, 195 transitions, 508 flow. Second operand 3 states and 500 transitions. [2024-11-19 05:52:58,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 219 transitions, 726 flow [2024-11-19 05:52:58,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 219 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:52:58,130 INFO L231 Difference]: Finished difference. Result has 191 places, 207 transitions, 606 flow [2024-11-19 05:52:58,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=191, PETRI_TRANSITIONS=207} [2024-11-19 05:52:58,131 INFO L277 CegarLoopForPetriNet]: 186 programPoint places, 5 predicate places. [2024-11-19 05:52:58,131 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 207 transitions, 606 flow [2024-11-19 05:52:58,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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) [2024-11-19 05:52:58,132 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:52:58,132 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:52:58,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:52:58,132 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:52:58,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:52:58,133 INFO L85 PathProgramCache]: Analyzing trace with hash -698898661, now seen corresponding path program 1 times [2024-11-19 05:52:58,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:52:58,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324263290] [2024-11-19 05:52:58,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:52:58,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:52:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:52:58,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:52:58,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:52:58,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324263290] [2024-11-19 05:52:58,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324263290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:52:58,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173947317] [2024-11-19 05:52:58,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:52:58,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:52:58,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:52:58,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:52:58,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 05:52:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:52:58,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 05:52:58,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:52:58,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:52:58,339 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:52:58,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:52:58,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173947317] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:52:58,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:52:58,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 05:52:58,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568572619] [2024-11-19 05:52:58,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:52:58,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:52:58,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:52:58,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:52:58,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:52:58,433 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 201 [2024-11-19 05:52:58,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 207 transitions, 606 flow. Second operand has 10 states, 10 states have (on average 155.5) internal successors, (1555), 10 states have internal predecessors, (1555), 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) [2024-11-19 05:52:58,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:52:58,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 201 [2024-11-19 05:52:58,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:52:58,826 INFO L124 PetriNetUnfolderBase]: 864/4121 cut-off events. [2024-11-19 05:52:58,827 INFO L125 PetriNetUnfolderBase]: For 664/708 co-relation queries the response was YES. [2024-11-19 05:52:58,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6709 conditions, 4121 events. 864/4121 cut-off events. For 664/708 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 39253 event pairs, 123 based on Foata normal form. 104/3934 useless extension candidates. Maximal degree in co-relation 3159. Up to 434 conditions per place. [2024-11-19 05:52:58,842 INFO L140 encePairwiseOnDemand]: 196/201 looper letters, 72 selfloop transitions, 7 changer transitions 0/210 dead transitions. [2024-11-19 05:52:58,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 210 transitions, 724 flow [2024-11-19 05:52:58,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:52:58,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:52:58,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1458 transitions. [2024-11-19 05:52:58,845 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8059701492537313 [2024-11-19 05:52:58,845 INFO L175 Difference]: Start difference. First operand has 191 places, 207 transitions, 606 flow. Second operand 9 states and 1458 transitions. [2024-11-19 05:52:58,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 210 transitions, 724 flow [2024-11-19 05:52:58,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 210 transitions, 704 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:52:58,849 INFO L231 Difference]: Finished difference. Result has 150 places, 154 transitions, 448 flow [2024-11-19 05:52:58,850 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=448, PETRI_PLACES=150, PETRI_TRANSITIONS=154} [2024-11-19 05:52:58,850 INFO L277 CegarLoopForPetriNet]: 186 programPoint places, -36 predicate places. [2024-11-19 05:52:58,850 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 154 transitions, 448 flow [2024-11-19 05:52:58,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 155.5) internal successors, (1555), 10 states have internal predecessors, (1555), 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) [2024-11-19 05:52:58,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:52:58,851 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:52:58,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 05:52:59,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:52:59,057 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:52:59,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:52:59,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1777973031, now seen corresponding path program 1 times [2024-11-19 05:52:59,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:52:59,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850203067] [2024-11-19 05:52:59,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:52:59,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:52:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:52:59,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:52:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:52:59,102 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:52:59,103 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:52:59,103 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-19 05:52:59,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-19 05:52:59,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-19 05:52:59,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-19 05:52:59,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-19 05:52:59,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-19 05:52:59,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-11-19 05:52:59,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-19 05:52:59,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-19 05:52:59,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-19 05:52:59,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-19 05:52:59,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-19 05:52:59,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-19 05:52:59,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-19 05:52:59,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-19 05:52:59,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-19 05:52:59,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:52:59,109 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-19 05:52:59,109 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:52:59,109 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 05:52:59,133 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 05:52:59,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 254 transitions, 535 flow [2024-11-19 05:52:59,177 INFO L124 PetriNetUnfolderBase]: 54/544 cut-off events. [2024-11-19 05:52:59,177 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-19 05:52:59,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 544 events. 54/544 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2105 event pairs, 1 based on Foata normal form. 0/458 useless extension candidates. Maximal degree in co-relation 363. Up to 16 conditions per place. [2024-11-19 05:52:59,180 INFO L82 GeneralOperation]: Start removeDead. Operand has 234 places, 254 transitions, 535 flow [2024-11-19 05:52:59,182 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 234 places, 254 transitions, 535 flow [2024-11-19 05:52:59,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:52:59,183 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5d79af8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:52:59,183 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-19 05:52:59,185 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:52:59,185 INFO L124 PetriNetUnfolderBase]: 1/47 cut-off events. [2024-11-19 05:52:59,185 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:52:59,185 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:52:59,185 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:52:59,186 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:52:59,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:52:59,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1805282686, now seen corresponding path program 1 times [2024-11-19 05:52:59,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:52:59,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846216558] [2024-11-19 05:52:59,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:52:59,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:52:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:52:59,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:52:59,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:52:59,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846216558] [2024-11-19 05:52:59,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846216558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:52:59,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:52:59,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:52:59,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956374388] [2024-11-19 05:52:59,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:52:59,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:52:59,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:52:59,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:52:59,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:52:59,393 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 254 [2024-11-19 05:52:59,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 254 transitions, 535 flow. Second operand has 6 states, 6 states have (on average 184.5) internal successors, (1107), 6 states have internal predecessors, (1107), 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) [2024-11-19 05:52:59,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:52:59,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 254 [2024-11-19 05:52:59,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:05,554 INFO L124 PetriNetUnfolderBase]: 19556/52155 cut-off events. [2024-11-19 05:53:05,554 INFO L125 PetriNetUnfolderBase]: For 1171/1171 co-relation queries the response was YES. [2024-11-19 05:53:05,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80512 conditions, 52155 events. 19556/52155 cut-off events. For 1171/1171 co-relation queries the response was YES. Maximal size of possible extension queue 1258. Compared 638028 event pairs, 2086 based on Foata normal form. 15316/63891 useless extension candidates. Maximal degree in co-relation 9041. Up to 20053 conditions per place. [2024-11-19 05:53:05,907 INFO L140 encePairwiseOnDemand]: 224/254 looper letters, 112 selfloop transitions, 5 changer transitions 0/299 dead transitions. [2024-11-19 05:53:05,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 299 transitions, 859 flow [2024-11-19 05:53:05,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:53:05,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:53:05,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1312 transitions. [2024-11-19 05:53:05,910 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8608923884514436 [2024-11-19 05:53:05,910 INFO L175 Difference]: Start difference. First operand has 234 places, 254 transitions, 535 flow. Second operand 6 states and 1312 transitions. [2024-11-19 05:53:05,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 299 transitions, 859 flow [2024-11-19 05:53:05,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 299 transitions, 859 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:53:05,914 INFO L231 Difference]: Finished difference. Result has 236 places, 227 transitions, 491 flow [2024-11-19 05:53:05,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=491, PETRI_PLACES=236, PETRI_TRANSITIONS=227} [2024-11-19 05:53:05,915 INFO L277 CegarLoopForPetriNet]: 234 programPoint places, 2 predicate places. [2024-11-19 05:53:05,915 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 227 transitions, 491 flow [2024-11-19 05:53:05,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.5) internal successors, (1107), 6 states have internal predecessors, (1107), 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) [2024-11-19 05:53:05,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:05,916 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:53:05,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:53:05,916 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:53:05,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:05,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1709430226, now seen corresponding path program 1 times [2024-11-19 05:53:05,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:05,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527303611] [2024-11-19 05:53:05,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:05,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:05,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:05,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:05,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527303611] [2024-11-19 05:53:05,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527303611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:05,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:05,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:53:05,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996847617] [2024-11-19 05:53:05,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:05,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:05,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:05,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:05,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:05,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 254 [2024-11-19 05:53:05,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 227 transitions, 491 flow. Second operand has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 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) [2024-11-19 05:53:05,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:05,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 254 [2024-11-19 05:53:05,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:09,884 INFO L124 PetriNetUnfolderBase]: 8936/36954 cut-off events. [2024-11-19 05:53:09,884 INFO L125 PetriNetUnfolderBase]: For 2308/2308 co-relation queries the response was YES. [2024-11-19 05:53:09,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52071 conditions, 36954 events. 8936/36954 cut-off events. For 2308/2308 co-relation queries the response was YES. Maximal size of possible extension queue 764. Compared 487394 event pairs, 8324 based on Foata normal form. 1/33970 useless extension candidates. Maximal degree in co-relation 6218. Up to 12753 conditions per place. [2024-11-19 05:53:10,061 INFO L140 encePairwiseOnDemand]: 251/254 looper letters, 39 selfloop transitions, 2 changer transitions 0/234 dead transitions. [2024-11-19 05:53:10,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 234 transitions, 589 flow [2024-11-19 05:53:10,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:10,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 627 transitions. [2024-11-19 05:53:10,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8228346456692913 [2024-11-19 05:53:10,063 INFO L175 Difference]: Start difference. First operand has 236 places, 227 transitions, 491 flow. Second operand 3 states and 627 transitions. [2024-11-19 05:53:10,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 234 transitions, 589 flow [2024-11-19 05:53:10,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 234 transitions, 577 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:53:10,073 INFO L231 Difference]: Finished difference. Result has 234 places, 228 transitions, 493 flow [2024-11-19 05:53:10,073 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=493, PETRI_PLACES=234, PETRI_TRANSITIONS=228} [2024-11-19 05:53:10,074 INFO L277 CegarLoopForPetriNet]: 234 programPoint places, 0 predicate places. [2024-11-19 05:53:10,074 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 228 transitions, 493 flow [2024-11-19 05:53:10,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 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) [2024-11-19 05:53:10,075 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:10,075 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:53:10,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 05:53:10,075 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:53:10,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:10,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1085180711, now seen corresponding path program 1 times [2024-11-19 05:53:10,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:10,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578884251] [2024-11-19 05:53:10,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:10,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:10,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:10,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:10,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578884251] [2024-11-19 05:53:10,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578884251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:10,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:10,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:10,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898567450] [2024-11-19 05:53:10,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:10,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:10,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:10,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:10,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:10,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 254 [2024-11-19 05:53:10,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 228 transitions, 493 flow. Second operand has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 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) [2024-11-19 05:53:10,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:10,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 254 [2024-11-19 05:53:10,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand