./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 b4399e58ed3ca9c75e2a61372e91a4308548a0e79a3eb4428d85990bd71242f7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:11:24,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:11:24,845 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:11:24,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:11:24,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:11:24,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:11:24,871 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:11:24,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:11:24,872 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:11:24,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:11:24,875 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:11:24,875 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:11:24,876 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:11:24,876 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:11:24,877 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:11:24,877 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:11:24,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:11:24,878 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:11:24,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:11:24,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:11:24,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:11:24,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:11:24,879 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:11:24,879 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:11:24,879 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:11:24,880 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:11:24,880 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:11:24,880 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:11:24,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:11:24,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:11:24,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:11:24,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:11:24,881 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:11:24,881 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:11:24,881 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:11:24,881 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:11:24,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:11:24,882 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:11:24,882 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:11:24,882 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:11:24,883 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:11:24,883 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4399e58ed3ca9c75e2a61372e91a4308548a0e79a3eb4428d85990bd71242f7 [2024-10-11 17:11:25,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:11:25,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:11:25,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:11:25,116 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:11:25,116 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:11:25,117 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i [2024-10-11 17:11:26,304 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:11:26,473 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:11:26,474 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i [2024-10-11 17:11:26,488 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9556b71e8/b16b8f66711c45fcad9a7b2df9decf28/FLAGfc53ff57c [2024-10-11 17:11:26,500 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9556b71e8/b16b8f66711c45fcad9a7b2df9decf28 [2024-10-11 17:11:26,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:11:26,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:11:26,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:11:26,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:11:26,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:11:26,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:11:26" (1/1) ... [2024-10-11 17:11:26,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cfbd98b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:26, skipping insertion in model container [2024-10-11 17:11:26,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:11:26" (1/1) ... [2024-10-11 17:11:26,543 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:11:26,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:11:26,841 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:11:26,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:11:26,921 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:11:26,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:26 WrapperNode [2024-10-11 17:11:26,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:11:26,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:11:26,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:11:26,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:11:26,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:26" (1/1) ... [2024-10-11 17:11:26,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:26" (1/1) ... [2024-10-11 17:11:26,968 INFO L138 Inliner]: procedures = 171, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 133 [2024-10-11 17:11:26,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:11:26,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:11:26,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:11:26,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:11:26,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:26" (1/1) ... [2024-10-11 17:11:26,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:26" (1/1) ... [2024-10-11 17:11:26,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:26" (1/1) ... [2024-10-11 17:11:26,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:26" (1/1) ... [2024-10-11 17:11:26,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:26" (1/1) ... [2024-10-11 17:11:26,992 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:26" (1/1) ... [2024-10-11 17:11:26,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:26" (1/1) ... [2024-10-11 17:11:26,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:26" (1/1) ... [2024-10-11 17:11:26,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:11:26,998 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:11:26,998 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:11:26,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:11:26,999 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:26" (1/1) ... [2024-10-11 17:11:27,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:11:27,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:11:27,038 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:11:27,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:11:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:11:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:11:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:11:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:11:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 17:11:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:11:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:11:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 17:11:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:11:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:11:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:11:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:11:27,077 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:11:27,175 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:11:27,180 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:11:27,435 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:11:27,436 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:11:27,472 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:11:27,472 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-11 17:11:27,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:11:27 BoogieIcfgContainer [2024-10-11 17:11:27,473 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:11:27,474 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:11:27,474 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:11:27,478 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:11:27,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:11:26" (1/3) ... [2024-10-11 17:11:27,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bce620a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:11:27, skipping insertion in model container [2024-10-11 17:11:27,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:26" (2/3) ... [2024-10-11 17:11:27,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bce620a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:11:27, skipping insertion in model container [2024-10-11 17:11:27,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:11:27" (3/3) ... [2024-10-11 17:11:27,480 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_61-invariant_racing.i [2024-10-11 17:11:27,494 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:11:27,494 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-11 17:11:27,494 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:11:27,543 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-11 17:11:27,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 193 transitions, 393 flow [2024-10-11 17:11:27,641 INFO L124 PetriNetUnfolderBase]: 32/292 cut-off events. [2024-10-11 17:11:27,642 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:11:27,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 292 events. 32/292 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1117 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 162. Up to 6 conditions per place. [2024-10-11 17:11:27,653 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 193 transitions, 393 flow [2024-10-11 17:11:27,658 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 193 transitions, 393 flow [2024-10-11 17:11:27,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:11:27,674 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;@6596bad1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:11:27,675 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-11 17:11:27,686 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:11:27,689 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-10-11 17:11:27,689 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:11:27,690 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:27,690 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] [2024-10-11 17:11:27,691 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-11 17:11:27,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:27,696 INFO L85 PathProgramCache]: Analyzing trace with hash 865050736, now seen corresponding path program 1 times [2024-10-11 17:11:27,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:27,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371146567] [2024-10-11 17:11:27,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:27,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:28,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:28,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:11:28,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371146567] [2024-10-11 17:11:28,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371146567] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:11:28,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:11:28,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:11:28,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364894510] [2024-10-11 17:11:28,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:11:28,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:11:28,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:11:28,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:11:28,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:11:28,099 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 193 [2024-10-11 17:11:28,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 193 transitions, 393 flow. Second operand has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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) [2024-10-11 17:11:28,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:11:28,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 193 [2024-10-11 17:11:28,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:11:28,300 INFO L124 PetriNetUnfolderBase]: 122/1132 cut-off events. [2024-10-11 17:11:28,301 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:11:28,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1405 conditions, 1132 events. 122/1132 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7181 event pairs, 88 based on Foata normal form. 141/1159 useless extension candidates. Maximal degree in co-relation 1334. Up to 256 conditions per place. [2024-10-11 17:11:28,310 INFO L140 encePairwiseOnDemand]: 172/193 looper letters, 34 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2024-10-11 17:11:28,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 183 transitions, 445 flow [2024-10-11 17:11:28,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:11:28,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:11:28,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 506 transitions. [2024-10-11 17:11:28,325 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8739205526770294 [2024-10-11 17:11:28,326 INFO L175 Difference]: Start difference. First operand has 176 places, 193 transitions, 393 flow. Second operand 3 states and 506 transitions. [2024-10-11 17:11:28,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 183 transitions, 445 flow [2024-10-11 17:11:28,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 183 transitions, 445 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:11:28,333 INFO L231 Difference]: Finished difference. Result has 177 places, 173 transitions, 361 flow [2024-10-11 17:11:28,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=361, PETRI_PLACES=177, PETRI_TRANSITIONS=173} [2024-10-11 17:11:28,338 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 1 predicate places. [2024-10-11 17:11:28,339 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 173 transitions, 361 flow [2024-10-11 17:11:28,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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) [2024-10-11 17:11:28,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:28,339 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] [2024-10-11 17:11:28,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:11:28,340 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-11 17:11:28,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:28,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1288223267, now seen corresponding path program 1 times [2024-10-11 17:11:28,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:28,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683907692] [2024-10-11 17:11:28,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:28,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:28,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:11:28,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683907692] [2024-10-11 17:11:28,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683907692] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:11:28,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:11:28,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:11:28,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115824848] [2024-10-11 17:11:28,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:11:28,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:11:28,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:11:28,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:11:28,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:11:28,864 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 193 [2024-10-11 17:11:28,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 173 transitions, 361 flow. Second operand has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 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) [2024-10-11 17:11:28,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:11:28,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 193 [2024-10-11 17:11:28,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:11:29,064 INFO L124 PetriNetUnfolderBase]: 225/1386 cut-off events. [2024-10-11 17:11:29,065 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-10-11 17:11:29,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1909 conditions, 1386 events. 225/1386 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9472 event pairs, 138 based on Foata normal form. 0/1266 useless extension candidates. Maximal degree in co-relation 1824. Up to 369 conditions per place. [2024-10-11 17:11:29,071 INFO L140 encePairwiseOnDemand]: 187/193 looper letters, 72 selfloop transitions, 5 changer transitions 0/212 dead transitions. [2024-10-11 17:11:29,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 212 transitions, 593 flow [2024-10-11 17:11:29,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:11:29,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:11:29,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 894 transitions. [2024-10-11 17:11:29,077 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.772020725388601 [2024-10-11 17:11:29,077 INFO L175 Difference]: Start difference. First operand has 177 places, 173 transitions, 361 flow. Second operand 6 states and 894 transitions. [2024-10-11 17:11:29,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 212 transitions, 593 flow [2024-10-11 17:11:29,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 212 transitions, 589 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:11:29,082 INFO L231 Difference]: Finished difference. Result has 179 places, 172 transitions, 365 flow [2024-10-11 17:11:29,082 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=365, PETRI_PLACES=179, PETRI_TRANSITIONS=172} [2024-10-11 17:11:29,083 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 3 predicate places. [2024-10-11 17:11:29,083 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 172 transitions, 365 flow [2024-10-11 17:11:29,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 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) [2024-10-11 17:11:29,083 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:29,084 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] [2024-10-11 17:11:29,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:11:29,084 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-11 17:11:29,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:29,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1992120150, now seen corresponding path program 1 times [2024-10-11 17:11:29,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:29,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129367641] [2024-10-11 17:11:29,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:29,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:29,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:29,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:11:29,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129367641] [2024-10-11 17:11:29,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129367641] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:11:29,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:11:29,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:11:29,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113135750] [2024-10-11 17:11:29,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:11:29,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:11:29,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:11:29,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:11:29,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:11:29,165 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 193 [2024-10-11 17:11:29,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 172 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 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) [2024-10-11 17:11:29,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:11:29,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 193 [2024-10-11 17:11:29,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:11:29,394 INFO L124 PetriNetUnfolderBase]: 423/2416 cut-off events. [2024-10-11 17:11:29,394 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-11 17:11:29,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3362 conditions, 2416 events. 423/2416 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 18603 event pairs, 160 based on Foata normal form. 0/2200 useless extension candidates. Maximal degree in co-relation 3300. Up to 544 conditions per place. [2024-10-11 17:11:29,402 INFO L140 encePairwiseOnDemand]: 171/193 looper letters, 61 selfloop transitions, 16 changer transitions 0/207 dead transitions. [2024-10-11 17:11:29,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 207 transitions, 592 flow [2024-10-11 17:11:29,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:11:29,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:11:29,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 479 transitions. [2024-10-11 17:11:29,404 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8272884283246977 [2024-10-11 17:11:29,405 INFO L175 Difference]: Start difference. First operand has 179 places, 172 transitions, 365 flow. Second operand 3 states and 479 transitions. [2024-10-11 17:11:29,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 207 transitions, 592 flow [2024-10-11 17:11:29,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 207 transitions, 582 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:11:29,409 INFO L231 Difference]: Finished difference. Result has 178 places, 188 transitions, 495 flow [2024-10-11 17:11:29,410 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=495, PETRI_PLACES=178, PETRI_TRANSITIONS=188} [2024-10-11 17:11:29,412 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 2 predicate places. [2024-10-11 17:11:29,412 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 188 transitions, 495 flow [2024-10-11 17:11:29,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 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) [2024-10-11 17:11:29,412 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:29,413 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] [2024-10-11 17:11:29,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:11:29,413 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-11 17:11:29,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:29,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1103490321, now seen corresponding path program 1 times [2024-10-11 17:11:29,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:29,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047717469] [2024-10-11 17:11:29,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:29,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:11:29,437 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:11:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:11:29,477 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 17:11:29,478 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:11:29,478 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-10-11 17:11:29,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-10-11 17:11:29,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-10-11 17:11:29,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-10-11 17:11:29,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-10-11 17:11:29,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-10-11 17:11:29,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-10-11 17:11:29,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-10-11 17:11:29,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-10-11 17:11:29,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-10-11 17:11:29,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-10-11 17:11:29,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-10-11 17:11:29,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-10-11 17:11:29,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-10-11 17:11:29,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-10-11 17:11:29,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-10-11 17:11:29,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-10-11 17:11:29,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-10-11 17:11:29,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:11:29,484 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-11 17:11:29,486 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 17:11:29,486 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-11 17:11:29,517 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 17:11:29,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 255 transitions, 526 flow [2024-10-11 17:11:29,553 INFO L124 PetriNetUnfolderBase]: 54/481 cut-off events. [2024-10-11 17:11:29,553 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-11 17:11:29,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 481 events. 54/481 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2097 event pairs, 0 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 294. Up to 9 conditions per place. [2024-10-11 17:11:29,556 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 255 transitions, 526 flow [2024-10-11 17:11:29,561 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 255 transitions, 526 flow [2024-10-11 17:11:29,563 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:11:29,564 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;@6596bad1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:11:29,565 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-11 17:11:29,567 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:11:29,570 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-10-11 17:11:29,570 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:11:29,570 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:29,570 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] [2024-10-11 17:11:29,570 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:11:29,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:29,571 INFO L85 PathProgramCache]: Analyzing trace with hash -516333968, now seen corresponding path program 1 times [2024-10-11 17:11:29,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:29,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137260209] [2024-10-11 17:11:29,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:29,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:29,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:29,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:11:29,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137260209] [2024-10-11 17:11:29,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137260209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:11:29,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:11:29,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:11:29,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139252668] [2024-10-11 17:11:29,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:11:29,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:11:29,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:11:29,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:11:29,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:11:29,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 255 [2024-10-11 17:11:29,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 255 transitions, 526 flow. Second operand has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 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) [2024-10-11 17:11:29,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:11:29,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 255 [2024-10-11 17:11:29,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:11:30,718 INFO L124 PetriNetUnfolderBase]: 3074/12520 cut-off events. [2024-10-11 17:11:30,719 INFO L125 PetriNetUnfolderBase]: For 109/109 co-relation queries the response was YES. [2024-10-11 17:11:30,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17237 conditions, 12520 events. 3074/12520 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 137561 event pairs, 2580 based on Foata normal form. 2223/13469 useless extension candidates. Maximal degree in co-relation 12801. Up to 4643 conditions per place. [2024-10-11 17:11:30,787 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 47 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2024-10-11 17:11:30,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 240 transitions, 594 flow [2024-10-11 17:11:30,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:11:30,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:11:30,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 657 transitions. [2024-10-11 17:11:30,789 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8588235294117647 [2024-10-11 17:11:30,789 INFO L175 Difference]: Start difference. First operand has 232 places, 255 transitions, 526 flow. Second operand 3 states and 657 transitions. [2024-10-11 17:11:30,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 240 transitions, 594 flow [2024-10-11 17:11:30,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 240 transitions, 594 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:11:30,792 INFO L231 Difference]: Finished difference. Result has 233 places, 230 transitions, 486 flow [2024-10-11 17:11:30,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=233, PETRI_TRANSITIONS=230} [2024-10-11 17:11:30,793 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, 1 predicate places. [2024-10-11 17:11:30,793 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 230 transitions, 486 flow [2024-10-11 17:11:30,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 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) [2024-10-11 17:11:30,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:30,794 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] [2024-10-11 17:11:30,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:11:30,794 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:11:30,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:30,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1461577406, now seen corresponding path program 1 times [2024-10-11 17:11:30,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:30,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950415215] [2024-10-11 17:11:30,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:30,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:31,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:31,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:11:31,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950415215] [2024-10-11 17:11:31,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950415215] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:11:31,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:11:31,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:11:31,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792958669] [2024-10-11 17:11:31,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:11:31,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:11:31,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:11:31,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:11:31,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:11:31,117 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 255 [2024-10-11 17:11:31,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 230 transitions, 486 flow. Second operand has 6 states, 6 states have (on average 181.5) internal successors, (1089), 6 states have internal predecessors, (1089), 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) [2024-10-11 17:11:31,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:11:31,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 255 [2024-10-11 17:11:31,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:11:32,812 INFO L124 PetriNetUnfolderBase]: 5303/19145 cut-off events. [2024-10-11 17:11:32,813 INFO L125 PetriNetUnfolderBase]: For 285/285 co-relation queries the response was YES. [2024-10-11 17:11:32,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27899 conditions, 19145 events. 5303/19145 cut-off events. For 285/285 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 223133 event pairs, 500 based on Foata normal form. 0/17668 useless extension candidates. Maximal degree in co-relation 20339. Up to 6346 conditions per place. [2024-10-11 17:11:32,928 INFO L140 encePairwiseOnDemand]: 249/255 looper letters, 124 selfloop transitions, 6 changer transitions 0/309 dead transitions. [2024-10-11 17:11:32,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 309 transitions, 904 flow [2024-10-11 17:11:32,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:11:32,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:11:32,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1210 transitions. [2024-10-11 17:11:32,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7908496732026143 [2024-10-11 17:11:32,931 INFO L175 Difference]: Start difference. First operand has 233 places, 230 transitions, 486 flow. Second operand 6 states and 1210 transitions. [2024-10-11 17:11:32,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 309 transitions, 904 flow [2024-10-11 17:11:32,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 309 transitions, 902 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:11:32,937 INFO L231 Difference]: Finished difference. Result has 236 places, 229 transitions, 494 flow [2024-10-11 17:11:32,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=236, PETRI_TRANSITIONS=229} [2024-10-11 17:11:32,941 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, 4 predicate places. [2024-10-11 17:11:32,941 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 229 transitions, 494 flow [2024-10-11 17:11:32,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.5) internal successors, (1089), 6 states have internal predecessors, (1089), 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) [2024-10-11 17:11:32,942 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:32,942 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] [2024-10-11 17:11:32,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:11:32,942 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:11:32,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:32,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1524804749, now seen corresponding path program 1 times [2024-10-11 17:11:32,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:32,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222362243] [2024-10-11 17:11:32,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:32,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:33,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:33,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:11:33,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222362243] [2024-10-11 17:11:33,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222362243] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:11:33,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:11:33,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:11:33,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993995999] [2024-10-11 17:11:33,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:11:33,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:11:33,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:11:33,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:11:33,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:11:33,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 255 [2024-10-11 17:11:33,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 229 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 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) [2024-10-11 17:11:33,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:11:33,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 255 [2024-10-11 17:11:33,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:11:38,843 INFO L124 PetriNetUnfolderBase]: 23170/71698 cut-off events. [2024-10-11 17:11:38,843 INFO L125 PetriNetUnfolderBase]: For 513/513 co-relation queries the response was YES. [2024-10-11 17:11:38,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109009 conditions, 71698 events. 23170/71698 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 1222. Compared 938857 event pairs, 8784 based on Foata normal form. 0/64847 useless extension candidates. Maximal degree in co-relation 55105. Up to 22148 conditions per place. [2024-10-11 17:11:39,204 INFO L140 encePairwiseOnDemand]: 222/255 looper letters, 96 selfloop transitions, 24 changer transitions 0/284 dead transitions. [2024-10-11 17:11:39,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 284 transitions, 855 flow [2024-10-11 17:11:39,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:11:39,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:11:39,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 624 transitions. [2024-10-11 17:11:39,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8156862745098039 [2024-10-11 17:11:39,206 INFO L175 Difference]: Start difference. First operand has 236 places, 229 transitions, 494 flow. Second operand 3 states and 624 transitions. [2024-10-11 17:11:39,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 284 transitions, 855 flow [2024-10-11 17:11:39,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 284 transitions, 843 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:11:39,211 INFO L231 Difference]: Finished difference. Result has 235 places, 253 transitions, 692 flow [2024-10-11 17:11:39,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=692, PETRI_PLACES=235, PETRI_TRANSITIONS=253} [2024-10-11 17:11:39,212 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, 3 predicate places. [2024-10-11 17:11:39,212 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 253 transitions, 692 flow [2024-10-11 17:11:39,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 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) [2024-10-11 17:11:39,212 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:39,213 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] [2024-10-11 17:11:39,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:11:39,213 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:11:39,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:39,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1103330272, now seen corresponding path program 1 times [2024-10-11 17:11:39,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:39,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857321783] [2024-10-11 17:11:39,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:39,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:39,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:39,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:11:39,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857321783] [2024-10-11 17:11:39,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857321783] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:11:39,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976758240] [2024-10-11 17:11:39,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:39,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:11:39,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:11:39,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:11:39,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 17:11:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:39,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 17:11:39,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:11:39,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 17:11:39,370 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:11:39,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976758240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:11:39,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:11:39,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 17:11:39,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083529872] [2024-10-11 17:11:39,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:11:39,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:11:39,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:11:39,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:11:39,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:11:39,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 255 [2024-10-11 17:11:39,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 253 transitions, 692 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2024-10-11 17:11:39,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:11:39,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 255 [2024-10-11 17:11:39,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:11:45,932 INFO L124 PetriNetUnfolderBase]: 24263/79502 cut-off events. [2024-10-11 17:11:45,932 INFO L125 PetriNetUnfolderBase]: For 25065/26135 co-relation queries the response was YES. [2024-10-11 17:11:46,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142039 conditions, 79502 events. 24263/79502 cut-off events. For 25065/26135 co-relation queries the response was YES. Maximal size of possible extension queue 1372. Compared 1078465 event pairs, 15275 based on Foata normal form. 249/72825 useless extension candidates. Maximal degree in co-relation 137745. Up to 33214 conditions per place. [2024-10-11 17:11:46,354 INFO L140 encePairwiseOnDemand]: 241/255 looper letters, 86 selfloop transitions, 24 changer transitions 0/295 dead transitions. [2024-10-11 17:11:46,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 295 transitions, 1056 flow [2024-10-11 17:11:46,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:11:46,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:11:46,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 617 transitions. [2024-10-11 17:11:46,358 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8065359477124183 [2024-10-11 17:11:46,358 INFO L175 Difference]: Start difference. First operand has 235 places, 253 transitions, 692 flow. Second operand 3 states and 617 transitions. [2024-10-11 17:11:46,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 295 transitions, 1056 flow [2024-10-11 17:11:46,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 295 transitions, 988 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:11:46,415 INFO L231 Difference]: Finished difference. Result has 237 places, 275 transitions, 870 flow [2024-10-11 17:11:46,415 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=870, PETRI_PLACES=237, PETRI_TRANSITIONS=275} [2024-10-11 17:11:46,417 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, 5 predicate places. [2024-10-11 17:11:46,418 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 275 transitions, 870 flow [2024-10-11 17:11:46,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2024-10-11 17:11:46,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:46,418 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] [2024-10-11 17:11:46,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 17:11:46,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:11:46,620 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:11:46,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:46,620 INFO L85 PathProgramCache]: Analyzing trace with hash -519889245, now seen corresponding path program 1 times [2024-10-11 17:11:46,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:46,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677365652] [2024-10-11 17:11:46,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:46,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:46,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:46,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:11:46,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677365652] [2024-10-11 17:11:46,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677365652] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:11:46,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045408007] [2024-10-11 17:11:46,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:46,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:11:46,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:11:46,686 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:11:46,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 17:11:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:46,752 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:11:46,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:11:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:46,808 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:11:46,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:46,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045408007] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:11:46,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:11:46,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:11:46,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672002599] [2024-10-11 17:11:46,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:11:46,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:11:46,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:11:46,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:11:46,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:11:46,924 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 255 [2024-10-11 17:11:46,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 275 transitions, 870 flow. Second operand has 10 states, 10 states have (on average 191.4) internal successors, (1914), 10 states have internal predecessors, (1914), 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) [2024-10-11 17:11:46,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:11:46,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 255 [2024-10-11 17:11:46,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:11:47,624 INFO L124 PetriNetUnfolderBase]: 2043/8419 cut-off events. [2024-10-11 17:11:47,624 INFO L125 PetriNetUnfolderBase]: For 1021/1166 co-relation queries the response was YES. [2024-10-11 17:11:47,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13363 conditions, 8419 events. 2043/8419 cut-off events. For 1021/1166 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 87349 event pairs, 235 based on Foata normal form. 246/8170 useless extension candidates. Maximal degree in co-relation 13355. Up to 1249 conditions per place. [2024-10-11 17:11:47,667 INFO L140 encePairwiseOnDemand]: 250/255 looper letters, 116 selfloop transitions, 7 changer transitions 0/260 dead transitions. [2024-10-11 17:11:47,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 260 transitions, 898 flow [2024-10-11 17:11:47,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:11:47,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:11:47,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1826 transitions. [2024-10-11 17:11:47,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7956427015250545 [2024-10-11 17:11:47,671 INFO L175 Difference]: Start difference. First operand has 237 places, 275 transitions, 870 flow. Second operand 9 states and 1826 transitions. [2024-10-11 17:11:47,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 260 transitions, 898 flow [2024-10-11 17:11:47,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 260 transitions, 858 flow, removed 20 selfloop flow, removed 1 redundant places. [2024-10-11 17:11:47,677 INFO L231 Difference]: Finished difference. Result has 165 places, 168 transitions, 442 flow [2024-10-11 17:11:47,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=442, PETRI_PLACES=165, PETRI_TRANSITIONS=168} [2024-10-11 17:11:47,678 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -67 predicate places. [2024-10-11 17:11:47,678 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 168 transitions, 442 flow [2024-10-11 17:11:47,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 191.4) internal successors, (1914), 10 states have internal predecessors, (1914), 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) [2024-10-11 17:11:47,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:47,679 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] [2024-10-11 17:11:47,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 17:11:47,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:11:47,881 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:11:47,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:47,881 INFO L85 PathProgramCache]: Analyzing trace with hash 355699942, now seen corresponding path program 1 times [2024-10-11 17:11:47,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:47,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767305014] [2024-10-11 17:11:47,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:47,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:47,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:47,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:11:47,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767305014] [2024-10-11 17:11:47,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767305014] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:11:47,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:11:47,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:11:47,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803053232] [2024-10-11 17:11:47,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:11:47,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:11:47,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:11:47,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:11:47,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:11:47,935 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 255 [2024-10-11 17:11:47,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 168 transitions, 442 flow. Second operand has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2024-10-11 17:11:47,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:11:47,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 255 [2024-10-11 17:11:47,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:11:47,956 INFO L124 PetriNetUnfolderBase]: 35/225 cut-off events. [2024-10-11 17:11:47,956 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-10-11 17:11:47,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 225 events. 35/225 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 801 event pairs, 32 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 353. Up to 79 conditions per place. [2024-10-11 17:11:47,957 INFO L140 encePairwiseOnDemand]: 252/255 looper letters, 12 selfloop transitions, 1 changer transitions 0/74 dead transitions. [2024-10-11 17:11:47,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 74 transitions, 216 flow [2024-10-11 17:11:47,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:11:47,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:11:47,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 576 transitions. [2024-10-11 17:11:47,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7529411764705882 [2024-10-11 17:11:47,959 INFO L175 Difference]: Start difference. First operand has 165 places, 168 transitions, 442 flow. Second operand 3 states and 576 transitions. [2024-10-11 17:11:47,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 74 transitions, 216 flow [2024-10-11 17:11:47,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 74 transitions, 201 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-11 17:11:47,960 INFO L231 Difference]: Finished difference. Result has 84 places, 74 transitions, 177 flow [2024-10-11 17:11:47,960 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=177, PETRI_PLACES=84, PETRI_TRANSITIONS=74} [2024-10-11 17:11:47,960 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -148 predicate places. [2024-10-11 17:11:47,960 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 74 transitions, 177 flow [2024-10-11 17:11:47,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2024-10-11 17:11:47,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:47,962 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] [2024-10-11 17:11:47,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:11:47,962 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-11 17:11:47,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:47,963 INFO L85 PathProgramCache]: Analyzing trace with hash -391592351, now seen corresponding path program 1 times [2024-10-11 17:11:47,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:47,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539047743] [2024-10-11 17:11:47,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:47,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:11:47,981 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:11:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:11:47,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 17:11:47,999 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:11:47,999 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-10-11 17:11:47,999 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-10-11 17:11:47,999 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-10-11 17:11:48,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-10-11 17:11:48,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-10-11 17:11:48,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-10-11 17:11:48,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-10-11 17:11:48,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-10-11 17:11:48,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-10-11 17:11:48,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-10-11 17:11:48,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-10-11 17:11:48,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-10-11 17:11:48,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-10-11 17:11:48,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-10-11 17:11:48,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-10-11 17:11:48,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-10-11 17:11:48,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-10-11 17:11:48,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-10-11 17:11:48,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-10-11 17:11:48,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-10-11 17:11:48,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-10-11 17:11:48,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-10-11 17:11:48,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-10-11 17:11:48,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 17:11:48,003 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:11:48,003 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 17:11:48,003 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-11 17:11:48,030 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-11 17:11:48,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 288 places, 317 transitions, 661 flow [2024-10-11 17:11:48,095 INFO L124 PetriNetUnfolderBase]: 81/715 cut-off events. [2024-10-11 17:11:48,095 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-11 17:11:48,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 715 events. 81/715 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3264 event pairs, 1 based on Foata normal form. 0/583 useless extension candidates. Maximal degree in co-relation 489. Up to 16 conditions per place. [2024-10-11 17:11:48,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 288 places, 317 transitions, 661 flow [2024-10-11 17:11:48,106 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 288 places, 317 transitions, 661 flow [2024-10-11 17:11:48,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:11:48,109 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;@6596bad1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:11:48,109 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-10-11 17:11:48,112 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:11:48,112 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-10-11 17:11:48,112 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:11:48,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:48,112 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] [2024-10-11 17:11:48,112 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-11 17:11:48,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:48,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1606621296, now seen corresponding path program 1 times [2024-10-11 17:11:48,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:48,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762194675] [2024-10-11 17:11:48,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:48,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:48,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:48,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:11:48,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762194675] [2024-10-11 17:11:48,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762194675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:11:48,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:11:48,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:11:48,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454170302] [2024-10-11 17:11:48,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:11:48,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:11:48,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:11:48,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:11:48,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:11:48,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 317 [2024-10-11 17:11:48,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 317 transitions, 661 flow. Second operand has 3 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 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) [2024-10-11 17:11:48,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:11:48,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 317 [2024-10-11 17:11:48,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:03,946 INFO L124 PetriNetUnfolderBase]: 52130/156540 cut-off events. [2024-10-11 17:12:03,946 INFO L125 PetriNetUnfolderBase]: For 2131/2131 co-relation queries the response was YES. [2024-10-11 17:12:04,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227376 conditions, 156540 events. 52130/156540 cut-off events. For 2131/2131 co-relation queries the response was YES. Maximal size of possible extension queue 2962. Compared 2297121 event pairs, 46479 based on Foata normal form. 32282/174382 useless extension candidates. Maximal degree in co-relation 168843. Up to 69847 conditions per place. [2024-10-11 17:12:05,106 INFO L140 encePairwiseOnDemand]: 284/317 looper letters, 59 selfloop transitions, 2 changer transitions 0/296 dead transitions. [2024-10-11 17:12:05,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 296 transitions, 741 flow [2024-10-11 17:12:05,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:12:05,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:12:05,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 807 transitions. [2024-10-11 17:12:05,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8485804416403786 [2024-10-11 17:12:05,108 INFO L175 Difference]: Start difference. First operand has 288 places, 317 transitions, 661 flow. Second operand 3 states and 807 transitions. [2024-10-11 17:12:05,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 296 transitions, 741 flow [2024-10-11 17:12:05,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 296 transitions, 741 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:12:05,113 INFO L231 Difference]: Finished difference. Result has 289 places, 286 transitions, 609 flow [2024-10-11 17:12:05,113 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=609, PETRI_PLACES=289, PETRI_TRANSITIONS=286} [2024-10-11 17:12:05,114 INFO L277 CegarLoopForPetriNet]: 288 programPoint places, 1 predicate places. [2024-10-11 17:12:05,114 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 286 transitions, 609 flow [2024-10-11 17:12:05,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 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) [2024-10-11 17:12:05,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:05,115 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] [2024-10-11 17:12:05,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 17:12:05,115 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-11 17:12:05,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:05,115 INFO L85 PathProgramCache]: Analyzing trace with hash 105573599, now seen corresponding path program 1 times [2024-10-11 17:12:05,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:05,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403863842] [2024-10-11 17:12:05,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:05,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:05,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:12:05,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:05,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403863842] [2024-10-11 17:12:05,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403863842] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:12:05,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:12:05,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:12:05,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075498899] [2024-10-11 17:12:05,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:12:05,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:12:05,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:05,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:12:05,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:12:05,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 317 [2024-10-11 17:12:05,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 286 transitions, 609 flow. Second operand has 6 states, 6 states have (on average 225.5) internal successors, (1353), 6 states have internal predecessors, (1353), 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) [2024-10-11 17:12:05,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:05,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 317 [2024-10-11 17:12:05,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand