./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/mix018.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d 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-wmm/mix018.opt.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 a7349305eeae716fa3a7c11218caa894d6e5121d77db0055a98af7bd7c666586 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:37:02,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:37:02,799 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:37:02,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:37:02,808 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:37:02,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:37:02,844 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:37:02,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:37:02,845 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:37:02,846 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:37:02,848 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:37:02,848 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:37:02,848 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:37:02,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:37:02,850 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:37:02,851 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:37:02,852 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:37:02,852 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:37:02,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:37:02,853 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:37:02,853 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:37:02,854 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:37:02,854 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:37:02,856 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:37:02,856 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:37:02,857 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:37:02,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:37:02,857 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:37:02,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:37:02,858 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:37:02,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:37:02,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:37:02,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:37:02,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:37:02,859 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:37:02,859 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:37:02,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:37:02,859 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:37:02,860 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:37:02,860 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:37:02,860 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:37:02,862 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7349305eeae716fa3a7c11218caa894d6e5121d77db0055a98af7bd7c666586 [2024-11-09 06:37:03,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:37:03,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:37:03,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:37:03,157 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:37:03,158 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:37:03,159 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix018.opt.i [2024-11-09 06:37:04,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:37:04,916 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:37:04,917 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix018.opt.i [2024-11-09 06:37:04,937 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b983877a/412a63446bfe4e0fa77a21e15f111d70/FLAG15c116dac [2024-11-09 06:37:05,231 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b983877a/412a63446bfe4e0fa77a21e15f111d70 [2024-11-09 06:37:05,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:37:05,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:37:05,237 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:37:05,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:37:05,241 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:37:05,242 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:37:05" (1/1) ... [2024-11-09 06:37:05,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd52893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:05, skipping insertion in model container [2024-11-09 06:37:05,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:37:05" (1/1) ... [2024-11-09 06:37:05,292 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:37:05,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:37:05,784 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:37:05,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:37:05,932 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:37:05,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:05 WrapperNode [2024-11-09 06:37:05,933 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:37:05,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:37:05,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:37:05,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:37:05,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:05" (1/1) ... [2024-11-09 06:37:05,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:05" (1/1) ... [2024-11-09 06:37:06,083 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 964 [2024-11-09 06:37:06,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:37:06,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:37:06,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:37:06,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:37:06,105 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:05" (1/1) ... [2024-11-09 06:37:06,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:05" (1/1) ... [2024-11-09 06:37:06,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:05" (1/1) ... [2024-11-09 06:37:06,120 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:05" (1/1) ... [2024-11-09 06:37:06,145 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:05" (1/1) ... [2024-11-09 06:37:06,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:05" (1/1) ... [2024-11-09 06:37:06,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:05" (1/1) ... [2024-11-09 06:37:06,161 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:05" (1/1) ... [2024-11-09 06:37:06,168 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:37:06,170 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:37:06,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:37:06,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:37:06,171 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:05" (1/1) ... [2024-11-09 06:37:06,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:37:06,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:37:06,233 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) [2024-11-09 06:37:06,238 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 [2024-11-09 06:37:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 06:37:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:37:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 06:37:06,289 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 06:37:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 06:37:06,290 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 06:37:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 06:37:06,291 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 06:37:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-09 06:37:06,291 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-09 06:37:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:37:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 06:37:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:37:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:37:06,294 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:37:06,491 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:37:06,493 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:37:08,014 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:37:08,015 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:37:13,907 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:37:13,908 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:37:13,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:37:13 BoogieIcfgContainer [2024-11-09 06:37:13,909 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:37:13,911 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:37:13,911 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:37:13,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:37:13,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:37:05" (1/3) ... [2024-11-09 06:37:13,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a65455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:37:13, skipping insertion in model container [2024-11-09 06:37:13,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:05" (2/3) ... [2024-11-09 06:37:13,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a65455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:37:13, skipping insertion in model container [2024-11-09 06:37:13,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:37:13" (3/3) ... [2024-11-09 06:37:13,919 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018.opt.i [2024-11-09 06:37:13,943 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:37:13,943 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 293 error locations. [2024-11-09 06:37:13,944 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:37:14,329 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:37:14,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 435 places, 425 transitions, 866 flow [2024-11-09 06:37:14,718 INFO L124 PetriNetUnfolderBase]: 3/421 cut-off events. [2024-11-09 06:37:14,719 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:37:14,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 421 events. 3/421 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2641 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 383. Up to 2 conditions per place. [2024-11-09 06:37:14,745 INFO L82 GeneralOperation]: Start removeDead. Operand has 435 places, 425 transitions, 866 flow [2024-11-09 06:37:14,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 431 places, 421 transitions, 854 flow [2024-11-09 06:37:14,779 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:37:14,788 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;@4d0122df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:37:14,788 INFO L334 AbstractCegarLoop]: Starting to check reachability of 552 error locations. [2024-11-09 06:37:14,795 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:37:14,795 INFO L124 PetriNetUnfolderBase]: 0/46 cut-off events. [2024-11-09 06:37:14,795 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:37:14,795 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:37:14,796 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:37:14,797 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 548 more)] === [2024-11-09 06:37:14,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:14,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1992176460, now seen corresponding path program 1 times [2024-11-09 06:37:14,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:37:14,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638282540] [2024-11-09 06:37:14,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:14,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:37:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:15,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:37:15,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:37:15,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638282540] [2024-11-09 06:37:15,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638282540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:37:15,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:37:15,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:37:15,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704167508] [2024-11-09 06:37:15,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:37:15,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:37:15,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:37:15,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:37:15,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:37:15,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 425 [2024-11-09 06:37:15,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 421 transitions, 854 flow. Second operand has 2 states, 2 states have (on average 110.0) internal successors, (220), 2 states have internal predecessors, (220), 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) [2024-11-09 06:37:15,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:37:15,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 425 [2024-11-09 06:37:15,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:37:23,726 INFO L124 PetriNetUnfolderBase]: 4524/13100 cut-off events. [2024-11-09 06:37:23,726 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-11-09 06:37:23,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19420 conditions, 13100 events. 4524/13100 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 147836 event pairs, 4524 based on Foata normal form. 1107/13295 useless extension candidates. Maximal degree in co-relation 19367. Up to 6145 conditions per place. [2024-11-09 06:37:23,855 INFO L140 encePairwiseOnDemand]: 131/425 looper letters, 21 selfloop transitions, 0 changer transitions 0/125 dead transitions. [2024-11-09 06:37:23,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 125 transitions, 304 flow [2024-11-09 06:37:23,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:37:23,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 06:37:23,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 533 transitions. [2024-11-09 06:37:23,873 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6270588235294118 [2024-11-09 06:37:23,876 INFO L175 Difference]: Start difference. First operand has 431 places, 421 transitions, 854 flow. Second operand 2 states and 533 transitions. [2024-11-09 06:37:23,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 125 transitions, 304 flow [2024-11-09 06:37:23,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 125 transitions, 300 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 06:37:23,884 INFO L231 Difference]: Finished difference. Result has 135 places, 125 transitions, 258 flow [2024-11-09 06:37:23,887 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=258, PETRI_PLACES=135, PETRI_TRANSITIONS=125} [2024-11-09 06:37:23,891 INFO L277 CegarLoopForPetriNet]: 431 programPoint places, -296 predicate places. [2024-11-09 06:37:23,894 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 125 transitions, 258 flow [2024-11-09 06:37:23,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 110.0) internal successors, (220), 2 states have internal predecessors, (220), 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) [2024-11-09 06:37:23,895 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:37:23,895 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:37:23,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:37:23,897 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 548 more)] === [2024-11-09 06:37:23,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:23,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1110342050, now seen corresponding path program 1 times [2024-11-09 06:37:23,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:37:23,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203356105] [2024-11-09 06:37:23,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:23,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:37:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:24,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:37:24,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:37:24,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203356105] [2024-11-09 06:37:24,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203356105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:37:24,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:37:24,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:37:24,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537203269] [2024-11-09 06:37:24,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:37:24,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:37:24,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:37:24,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:37:24,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:37:24,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 425 [2024-11-09 06:37:24,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 125 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2024-11-09 06:37:24,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:37:24,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 425 [2024-11-09 06:37:24,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:37:34,436 INFO L124 PetriNetUnfolderBase]: 6892/18723 cut-off events. [2024-11-09 06:37:34,436 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:37:34,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28176 conditions, 18723 events. 6892/18723 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 551. Compared 207436 event pairs, 2156 based on Foata normal form. 0/17532 useless extension candidates. Maximal degree in co-relation 28173. Up to 6272 conditions per place. [2024-11-09 06:37:34,576 INFO L140 encePairwiseOnDemand]: 423/425 looper letters, 36 selfloop transitions, 1 changer transitions 0/138 dead transitions. [2024-11-09 06:37:34,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 138 transitions, 358 flow [2024-11-09 06:37:34,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:37:34,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:37:34,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2024-11-09 06:37:34,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2792156862745098 [2024-11-09 06:37:34,581 INFO L175 Difference]: Start difference. First operand has 135 places, 125 transitions, 258 flow. Second operand 3 states and 356 transitions. [2024-11-09 06:37:34,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 138 transitions, 358 flow [2024-11-09 06:37:34,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 138 transitions, 358 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:37:34,588 INFO L231 Difference]: Finished difference. Result has 136 places, 124 transitions, 258 flow [2024-11-09 06:37:34,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=136, PETRI_TRANSITIONS=124} [2024-11-09 06:37:34,590 INFO L277 CegarLoopForPetriNet]: 431 programPoint places, -295 predicate places. [2024-11-09 06:37:34,591 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 124 transitions, 258 flow [2024-11-09 06:37:34,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2024-11-09 06:37:34,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:37:34,592 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:37:34,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:37:34,592 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 548 more)] === [2024-11-09 06:37:34,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:34,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1438810704, now seen corresponding path program 1 times [2024-11-09 06:37:34,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:37:34,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481500373] [2024-11-09 06:37:34,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:34,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:37:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:34,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:37:34,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:37:34,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481500373] [2024-11-09 06:37:34,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481500373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:37:34,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:37:34,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:37:34,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082117372] [2024-11-09 06:37:34,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:37:34,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:37:34,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:37:34,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:37:34,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:37:34,852 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 425 [2024-11-09 06:37:34,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 124 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2024-11-09 06:37:34,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:37:34,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 425 [2024-11-09 06:37:34,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand