./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:33:54,002 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:33:54,091 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:33:54,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:33:54,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:33:54,122 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:33:54,123 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:33:54,124 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:33:54,125 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:33:54,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:33:54,126 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:33:54,126 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:33:54,127 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:33:54,129 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:33:54,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:33:54,130 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:33:54,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:33:54,130 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:33:54,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:33:54,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:33:54,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:33:54,135 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:33:54,135 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:33:54,136 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:33:54,136 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:33:54,136 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:33:54,136 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:33:54,136 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:33:54,137 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:33:54,137 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:33:54,137 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:33:54,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:33:54,138 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:33:54,138 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:33:54,138 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:33:54,138 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:33:54,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:33:54,139 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:33:54,139 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:33:54,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:33:54,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:33:54,142 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb [2024-11-16 23:33:54,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:33:54,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:33:54,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:33:54,397 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:33:54,397 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:33:54,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2024-11-16 23:33:55,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:33:56,094 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:33:56,095 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2024-11-16 23:33:56,113 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb649f76d/e78b09f77d4f4e70b86daa42f5b4c937/FLAG4ff6ae3e8 [2024-11-16 23:33:56,376 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb649f76d/e78b09f77d4f4e70b86daa42f5b4c937 [2024-11-16 23:33:56,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:33:56,380 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:33:56,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:33:56,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:33:56,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:33:56,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:33:56" (1/1) ... [2024-11-16 23:33:56,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6027e0ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:56, skipping insertion in model container [2024-11-16 23:33:56,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:33:56" (1/1) ... [2024-11-16 23:33:56,440 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:33:56,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:33:56,921 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:33:57,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:33:57,055 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:33:57,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:57 WrapperNode [2024-11-16 23:33:57,056 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:33:57,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:33:57,057 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:33:57,057 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:33:57,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:57" (1/1) ... [2024-11-16 23:33:57,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:57" (1/1) ... [2024-11-16 23:33:57,160 INFO L138 Inliner]: procedures = 174, calls = 89, calls flagged for inlining = 21, calls inlined = 37, statements flattened = 891 [2024-11-16 23:33:57,161 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:33:57,162 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:33:57,162 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:33:57,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:33:57,171 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:57" (1/1) ... [2024-11-16 23:33:57,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:57" (1/1) ... [2024-11-16 23:33:57,195 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:57" (1/1) ... [2024-11-16 23:33:57,196 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:57" (1/1) ... [2024-11-16 23:33:57,256 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:57" (1/1) ... [2024-11-16 23:33:57,259 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:57" (1/1) ... [2024-11-16 23:33:57,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:57" (1/1) ... [2024-11-16 23:33:57,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:57" (1/1) ... [2024-11-16 23:33:57,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:33:57,285 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:33:57,285 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:33:57,285 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:33:57,287 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:57" (1/1) ... [2024-11-16 23:33:57,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:33:57,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:33:57,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 23:33:57,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 23:33:57,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:33:57,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:33:57,385 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:33:57,385 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-11-16 23:33:57,385 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-11-16 23:33:57,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:33:57,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-16 23:33:57,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:33:57,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-16 23:33:57,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:33:57,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:33:57,386 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:33:57,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:33:57,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:33:57,390 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:33:57,595 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:33:57,598 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:33:58,904 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:33:58,904 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:33:58,967 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:33:58,968 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:33:58,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:33:58 BoogieIcfgContainer [2024-11-16 23:33:58,968 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:33:58,973 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:33:58,974 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:33:58,977 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:33:58,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:33:56" (1/3) ... [2024-11-16 23:33:58,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e0ef9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:33:58, skipping insertion in model container [2024-11-16 23:33:58,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:57" (2/3) ... [2024-11-16 23:33:58,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e0ef9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:33:58, skipping insertion in model container [2024-11-16 23:33:58,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:33:58" (3/3) ... [2024-11-16 23:33:58,981 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_2t.i [2024-11-16 23:33:58,996 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:33:58,997 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 79 error locations. [2024-11-16 23:33:58,997 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:33:59,187 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-16 23:33:59,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 992 places, 1080 transitions, 2167 flow [2024-11-16 23:33:59,922 INFO L124 PetriNetUnfolderBase]: 137/1589 cut-off events. [2024-11-16 23:33:59,922 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:33:59,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1594 conditions, 1589 events. 137/1589 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5869 event pairs, 0 based on Foata normal form. 0/1332 useless extension candidates. Maximal degree in co-relation 941. Up to 4 conditions per place. [2024-11-16 23:33:59,973 INFO L82 GeneralOperation]: Start removeDead. Operand has 992 places, 1080 transitions, 2167 flow [2024-11-16 23:34:00,005 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 992 places, 1080 transitions, 2167 flow [2024-11-16 23:34:00,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:34:00,022 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;@18c19a44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:34:00,023 INFO L334 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2024-11-16 23:34:00,032 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:34:00,032 INFO L124 PetriNetUnfolderBase]: 1/52 cut-off events. [2024-11-16 23:34:00,032 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:34:00,032 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:34:00,033 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] [2024-11-16 23:34:00,034 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-16 23:34:00,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:34:00,040 INFO L85 PathProgramCache]: Analyzing trace with hash -705601374, now seen corresponding path program 1 times [2024-11-16 23:34:00,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:34:00,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120311447] [2024-11-16 23:34:00,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:34:00,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:34:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:34:00,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:34:00,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:34:00,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120311447] [2024-11-16 23:34:00,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120311447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:34:00,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:34:00,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:34:00,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444995478] [2024-11-16 23:34:00,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:34:00,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:34:00,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:34:01,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:34:01,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:34:02,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 763 out of 1080 [2024-11-16 23:34:02,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 992 places, 1080 transitions, 2167 flow. Second operand has 6 states, 6 states have (on average 764.5) internal successors, (4587), 6 states have internal predecessors, (4587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:34:02,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:34:02,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 763 of 1080 [2024-11-16 23:34:02,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:34:13,682 INFO L124 PetriNetUnfolderBase]: 12703/60268 cut-off events. [2024-11-16 23:34:13,683 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2024-11-16 23:34:13,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83685 conditions, 60268 events. 12703/60268 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 706851 event pairs, 11413 based on Foata normal form. 7020/60161 useless extension candidates. Maximal degree in co-relation 82947. Up to 23407 conditions per place. [2024-11-16 23:34:14,014 INFO L140 encePairwiseOnDemand]: 1002/1080 looper letters, 239 selfloop transitions, 5 changer transitions 6/979 dead transitions. [2024-11-16 23:34:14,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 968 places, 979 transitions, 2453 flow [2024-11-16 23:34:14,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:34:14,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:34:14,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4895 transitions. [2024-11-16 23:34:14,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7554012345679012 [2024-11-16 23:34:14,053 INFO L175 Difference]: Start difference. First operand has 992 places, 1080 transitions, 2167 flow. Second operand 6 states and 4895 transitions. [2024-11-16 23:34:14,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 968 places, 979 transitions, 2453 flow [2024-11-16 23:34:14,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 968 places, 979 transitions, 2453 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:34:14,089 INFO L231 Difference]: Finished difference. Result has 968 places, 973 transitions, 1963 flow [2024-11-16 23:34:14,093 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1080, PETRI_DIFFERENCE_MINUEND_FLOW=1965, PETRI_DIFFERENCE_MINUEND_PLACES=963, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=979, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=974, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1963, PETRI_PLACES=968, PETRI_TRANSITIONS=973} [2024-11-16 23:34:14,098 INFO L277 CegarLoopForPetriNet]: 992 programPoint places, -24 predicate places. [2024-11-16 23:34:14,099 INFO L471 AbstractCegarLoop]: Abstraction has has 968 places, 973 transitions, 1963 flow [2024-11-16 23:34:14,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 764.5) internal successors, (4587), 6 states have internal predecessors, (4587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:34:14,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:34:14,102 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] [2024-11-16 23:34:14,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:34:14,103 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-16 23:34:14,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:34:14,104 INFO L85 PathProgramCache]: Analyzing trace with hash -693141993, now seen corresponding path program 1 times [2024-11-16 23:34:14,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:34:14,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218879855] [2024-11-16 23:34:14,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:34:14,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:34:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:34:14,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:34:14,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:34:14,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218879855] [2024-11-16 23:34:14,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218879855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:34:14,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:34:14,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:34:14,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510166280] [2024-11-16 23:34:14,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:34:14,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:34:14,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:34:14,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:34:14,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:34:14,235 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 980 out of 1080 [2024-11-16 23:34:14,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 968 places, 973 transitions, 1963 flow. Second operand has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:34:14,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:34:14,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 980 of 1080 [2024-11-16 23:34:14,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:34:15,358 INFO L124 PetriNetUnfolderBase]: 247/4914 cut-off events. [2024-11-16 23:34:15,358 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:34:15,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5237 conditions, 4914 events. 247/4914 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 37096 event pairs, 110 based on Foata normal form. 1/4253 useless extension candidates. Maximal degree in co-relation 5152. Up to 306 conditions per place. [2024-11-16 23:34:15,391 INFO L140 encePairwiseOnDemand]: 1077/1080 looper letters, 27 selfloop transitions, 2 changer transitions 0/974 dead transitions. [2024-11-16 23:34:15,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 964 places, 974 transitions, 2023 flow [2024-11-16 23:34:15,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:34:15,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:34:15,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2970 transitions. [2024-11-16 23:34:15,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2024-11-16 23:34:15,398 INFO L175 Difference]: Start difference. First operand has 968 places, 973 transitions, 1963 flow. Second operand 3 states and 2970 transitions. [2024-11-16 23:34:15,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 964 places, 974 transitions, 2023 flow [2024-11-16 23:34:15,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 959 places, 974 transitions, 2013 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:34:15,417 INFO L231 Difference]: Finished difference. Result has 960 places, 974 transitions, 1965 flow [2024-11-16 23:34:15,419 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1080, PETRI_DIFFERENCE_MINUEND_FLOW=1953, PETRI_DIFFERENCE_MINUEND_PLACES=957, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=973, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=971, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1965, PETRI_PLACES=960, PETRI_TRANSITIONS=974} [2024-11-16 23:34:15,419 INFO L277 CegarLoopForPetriNet]: 992 programPoint places, -32 predicate places. [2024-11-16 23:34:15,420 INFO L471 AbstractCegarLoop]: Abstraction has has 960 places, 974 transitions, 1965 flow [2024-11-16 23:34:15,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:34:15,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:34:15,422 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] [2024-11-16 23:34:15,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:34:15,423 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-16 23:34:15,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:34:15,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1281625741, now seen corresponding path program 1 times [2024-11-16 23:34:15,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:34:15,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914867009] [2024-11-16 23:34:15,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:34:15,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:34:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:34:15,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:34:15,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:34:15,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914867009] [2024-11-16 23:34:15,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914867009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:34:15,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:34:15,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:34:15,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553878915] [2024-11-16 23:34:15,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:34:15,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:34:15,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:34:15,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:34:15,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:34:17,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 763 out of 1080 [2024-11-16 23:34:17,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 974 transitions, 1965 flow. Second operand has 6 states, 6 states have (on average 764.5) internal successors, (4587), 6 states have internal predecessors, (4587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:34:17,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:34:17,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 763 of 1080 [2024-11-16 23:34:17,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:34:27,691 INFO L124 PetriNetUnfolderBase]: 12703/60290 cut-off events. [2024-11-16 23:34:27,691 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-16 23:34:27,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83722 conditions, 60290 events. 12703/60290 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 706832 event pairs, 11413 based on Foata normal form. 0/53166 useless extension candidates. Maximal degree in co-relation 83642. Up to 23410 conditions per place. [2024-11-16 23:34:28,226 INFO L140 encePairwiseOnDemand]: 1074/1080 looper letters, 240 selfloop transitions, 5 changer transitions 0/973 dead transitions. [2024-11-16 23:34:28,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 964 places, 973 transitions, 2453 flow [2024-11-16 23:34:28,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:34:28,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:34:28,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4823 transitions. [2024-11-16 23:34:28,236 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7442901234567901 [2024-11-16 23:34:28,236 INFO L175 Difference]: Start difference. First operand has 960 places, 974 transitions, 1965 flow. Second operand 6 states and 4823 transitions. [2024-11-16 23:34:28,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 964 places, 973 transitions, 2453 flow [2024-11-16 23:34:28,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 963 places, 973 transitions, 2451 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:34:28,255 INFO L231 Difference]: Finished difference. Result has 963 places, 973 transitions, 1971 flow [2024-11-16 23:34:28,257 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1080, PETRI_DIFFERENCE_MINUEND_FLOW=1961, PETRI_DIFFERENCE_MINUEND_PLACES=958, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=973, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=968, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1971, PETRI_PLACES=963, PETRI_TRANSITIONS=973} [2024-11-16 23:34:28,257 INFO L277 CegarLoopForPetriNet]: 992 programPoint places, -29 predicate places. [2024-11-16 23:34:28,257 INFO L471 AbstractCegarLoop]: Abstraction has has 963 places, 973 transitions, 1971 flow [2024-11-16 23:34:28,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 764.5) internal successors, (4587), 6 states have internal predecessors, (4587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:34:28,262 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:34:28,262 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] [2024-11-16 23:34:28,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:34:28,263 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-16 23:34:28,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:34:28,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1914485492, now seen corresponding path program 1 times [2024-11-16 23:34:28,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:34:28,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573179615] [2024-11-16 23:34:28,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:34:28,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:34:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:34:28,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:34:28,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:34:28,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573179615] [2024-11-16 23:34:28,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573179615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:34:28,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:34:28,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:34:28,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349421300] [2024-11-16 23:34:28,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:34:28,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:34:28,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:34:28,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:34:28,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:34:29,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 763 out of 1080 [2024-11-16 23:34:29,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 963 places, 973 transitions, 1971 flow. Second operand has 6 states, 6 states have (on average 764.5) internal successors, (4587), 6 states have internal predecessors, (4587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:34:29,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:34:29,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 763 of 1080 [2024-11-16 23:34:29,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:34:39,855 INFO L124 PetriNetUnfolderBase]: 12703/60288 cut-off events. [2024-11-16 23:34:39,856 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2024-11-16 23:34:39,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83729 conditions, 60288 events. 12703/60288 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 706735 event pairs, 11413 based on Foata normal form. 0/53166 useless extension candidates. Maximal degree in co-relation 83635. Up to 23410 conditions per place. [2024-11-16 23:34:40,128 INFO L140 encePairwiseOnDemand]: 1074/1080 looper letters, 240 selfloop transitions, 5 changer transitions 0/972 dead transitions. [2024-11-16 23:34:40,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 967 places, 972 transitions, 2459 flow [2024-11-16 23:34:40,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:34:40,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:34:40,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4823 transitions. [2024-11-16 23:34:40,138 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7442901234567901 [2024-11-16 23:34:40,139 INFO L175 Difference]: Start difference. First operand has 963 places, 973 transitions, 1971 flow. Second operand 6 states and 4823 transitions. [2024-11-16 23:34:40,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 967 places, 972 transitions, 2459 flow [2024-11-16 23:34:40,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 962 places, 972 transitions, 2449 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:34:40,153 INFO L231 Difference]: Finished difference. Result has 962 places, 972 transitions, 1969 flow [2024-11-16 23:34:40,154 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1080, PETRI_DIFFERENCE_MINUEND_FLOW=1959, PETRI_DIFFERENCE_MINUEND_PLACES=957, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=972, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=967, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1969, PETRI_PLACES=962, PETRI_TRANSITIONS=972} [2024-11-16 23:34:40,155 INFO L277 CegarLoopForPetriNet]: 992 programPoint places, -30 predicate places. [2024-11-16 23:34:40,155 INFO L471 AbstractCegarLoop]: Abstraction has has 962 places, 972 transitions, 1969 flow [2024-11-16 23:34:40,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 764.5) internal successors, (4587), 6 states have internal predecessors, (4587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:34:40,158 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:34:40,159 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:34:40,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:34:40,159 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-16 23:34:40,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:34:40,160 INFO L85 PathProgramCache]: Analyzing trace with hash -28828833, now seen corresponding path program 1 times [2024-11-16 23:34:40,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:34:40,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141219504] [2024-11-16 23:34:40,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:34:40,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:34:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:34:40,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:34:40,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:34:40,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141219504] [2024-11-16 23:34:40,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141219504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:34:40,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023487364] [2024-11-16 23:34:40,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:34:40,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:34:40,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:34:40,269 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:34:40,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 23:34:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:34:40,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 23:34:40,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:34:40,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:34:40,501 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:34:40,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:34:40,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023487364] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:34:40,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:34:40,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-11-16 23:34:40,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181572641] [2024-11-16 23:34:40,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:34:40,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:34:40,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:34:40,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:34:40,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:34:40,661 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 979 out of 1080 [2024-11-16 23:34:40,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 962 places, 972 transitions, 1969 flow. Second operand has 5 states, 5 states have (on average 980.8) internal successors, (4904), 5 states have internal predecessors, (4904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:34:40,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:34:40,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 979 of 1080 [2024-11-16 23:34:40,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand