./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/thin002_power.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 e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:43:20,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:43:20,371 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:43:20,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:43:20,390 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:43:20,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:43:20,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:43:20,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:43:20,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:43:20,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:43:20,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:43:20,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:43:20,423 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:43:20,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:43:20,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:43:20,425 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:43:20,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:43:20,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:43:20,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:43:20,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:43:20,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:43:20,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:43:20,431 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:43:20,431 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:43:20,431 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:43:20,431 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:43:20,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:43:20,432 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:43:20,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:43:20,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:43:20,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:43:20,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:43:20,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:43:20,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:43:20,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:43:20,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:43:20,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:43:20,436 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:43:20,437 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:43:20,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:43:20,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:43:20,438 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 [2024-11-19 05:43:20,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:43:20,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:43:20,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:43:20,725 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:43:20,725 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:43:20,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2024-11-19 05:43:22,185 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:43:22,487 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:43:22,488 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2024-11-19 05:43:22,511 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a267c73d1/6e010f926cc24370bbbf59d0021e41eb/FLAG53ba0f58b [2024-11-19 05:43:22,529 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a267c73d1/6e010f926cc24370bbbf59d0021e41eb [2024-11-19 05:43:22,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:43:22,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:43:22,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:43:22,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:43:22,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:43:22,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:43:22" (1/1) ... [2024-11-19 05:43:22,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21da2351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:43:22, skipping insertion in model container [2024-11-19 05:43:22,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:43:22" (1/1) ... [2024-11-19 05:43:22,606 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:43:23,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:43:23,092 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:43:23,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:43:23,238 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:43:23,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:43:23 WrapperNode [2024-11-19 05:43:23,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:43:23,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:43:23,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:43:23,241 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:43:23,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:43:23" (1/1) ... [2024-11-19 05:43:23,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:43:23" (1/1) ... [2024-11-19 05:43:23,323 INFO L138 Inliner]: procedures = 176, calls = 69, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 575 [2024-11-19 05:43:23,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:43:23,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:43:23,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:43:23,324 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:43:23,334 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:43:23" (1/1) ... [2024-11-19 05:43:23,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:43:23" (1/1) ... [2024-11-19 05:43:23,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:43:23" (1/1) ... [2024-11-19 05:43:23,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:43:23" (1/1) ... [2024-11-19 05:43:23,395 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:43:23" (1/1) ... [2024-11-19 05:43:23,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:43:23" (1/1) ... [2024-11-19 05:43:23,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:43:23" (1/1) ... [2024-11-19 05:43:23,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:43:23" (1/1) ... [2024-11-19 05:43:23,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:43:23,471 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:43:23,475 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:43:23,475 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:43:23,477 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:43:23" (1/1) ... [2024-11-19 05:43:23,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:43:23,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:43:23,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 05:43:23,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 05:43:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:43:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:43:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 05:43:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:43:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-19 05:43:23,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-19 05:43:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-19 05:43:23,587 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-19 05:43:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-19 05:43:23,587 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-19 05:43:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-19 05:43:23,588 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-19 05:43:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:43:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 05:43:23,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:43:23,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:43:23,592 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:43:23,823 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:43:23,825 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:43:25,446 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:43:25,446 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:43:34,875 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:43:34,877 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 05:43:34,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:43:34 BoogieIcfgContainer [2024-11-19 05:43:34,879 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:43:34,881 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:43:34,882 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:43:34,886 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:43:34,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:43:22" (1/3) ... [2024-11-19 05:43:34,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a78151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:43:34, skipping insertion in model container [2024-11-19 05:43:34,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:43:23" (2/3) ... [2024-11-19 05:43:34,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a78151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:43:34, skipping insertion in model container [2024-11-19 05:43:34,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:43:34" (3/3) ... [2024-11-19 05:43:34,890 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_power.opt.i [2024-11-19 05:43:34,907 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:43:34,908 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 284 error locations. [2024-11-19 05:43:34,908 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:43:35,929 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 05:43:35,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 446 places, 436 transitions, 888 flow [2024-11-19 05:43:36,407 INFO L124 PetriNetUnfolderBase]: 3/432 cut-off events. [2024-11-19 05:43:36,409 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:43:36,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 432 events. 3/432 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 2620 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 373. Up to 2 conditions per place. [2024-11-19 05:43:36,431 INFO L82 GeneralOperation]: Start removeDead. Operand has 446 places, 436 transitions, 888 flow [2024-11-19 05:43:36,458 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 442 places, 432 transitions, 876 flow [2024-11-19 05:43:36,472 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:43:36,480 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;@f883962, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:43:36,481 INFO L334 AbstractCegarLoop]: Starting to check reachability of 527 error locations. [2024-11-19 05:43:36,492 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:43:36,494 INFO L124 PetriNetUnfolderBase]: 0/68 cut-off events. [2024-11-19 05:43:36,494 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:43:36,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:43:36,496 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] [2024-11-19 05:43:36,497 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 523 more)] === [2024-11-19 05:43:36,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:43:36,502 INFO L85 PathProgramCache]: Analyzing trace with hash 180876452, now seen corresponding path program 1 times [2024-11-19 05:43:36,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:43:36,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589678295] [2024-11-19 05:43:36,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:43:36,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:43:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:43:36,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:43:36,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:43:36,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589678295] [2024-11-19 05:43:36,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589678295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:43:36,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:43:36,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 05:43:36,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986072212] [2024-11-19 05:43:36,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:43:36,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 05:43:36,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:43:36,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 05:43:36,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:43:36,972 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 436 [2024-11-19 05:43:36,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 432 transitions, 876 flow. Second operand has 2 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:43:36,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:43:36,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 436 [2024-11-19 05:43:36,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:43:48,221 INFO L124 PetriNetUnfolderBase]: 4772/13721 cut-off events. [2024-11-19 05:43:48,222 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-19 05:43:48,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20401 conditions, 13721 events. 4772/13721 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 573. Compared 155521 event pairs, 4772 based on Foata normal form. 1152/13920 useless extension candidates. Maximal degree in co-relation 20327. Up to 6473 conditions per place. [2024-11-19 05:43:48,353 INFO L140 encePairwiseOnDemand]: 151/436 looper letters, 21 selfloop transitions, 0 changer transitions 0/145 dead transitions. [2024-11-19 05:43:48,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 145 transitions, 344 flow [2024-11-19 05:43:48,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 05:43:48,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-19 05:43:48,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 564 transitions. [2024-11-19 05:43:48,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6467889908256881 [2024-11-19 05:43:48,379 INFO L175 Difference]: Start difference. First operand has 442 places, 432 transitions, 876 flow. Second operand 2 states and 564 transitions. [2024-11-19 05:43:48,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 145 transitions, 344 flow [2024-11-19 05:43:48,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 145 transitions, 340 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 05:43:48,388 INFO L231 Difference]: Finished difference. Result has 155 places, 145 transitions, 298 flow [2024-11-19 05:43:48,391 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=436, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=298, PETRI_PLACES=155, PETRI_TRANSITIONS=145} [2024-11-19 05:43:48,396 INFO L277 CegarLoopForPetriNet]: 442 programPoint places, -287 predicate places. [2024-11-19 05:43:48,398 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 145 transitions, 298 flow [2024-11-19 05:43:48,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:43:48,399 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:43:48,399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:43:48,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:43:48,400 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 523 more)] === [2024-11-19 05:43:48,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:43:48,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1291517706, now seen corresponding path program 1 times [2024-11-19 05:43:48,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:43:48,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930063072] [2024-11-19 05:43:48,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:43:48,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:43:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:43:48,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:43:48,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:43:48,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930063072] [2024-11-19 05:43:48,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930063072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:43:48,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:43:48,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:43:48,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388632157] [2024-11-19 05:43:48,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:43:48,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:43:48,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:43:48,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:43:48,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:43:48,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 436 [2024-11-19 05:43:48,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 145 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:43:48,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:43:48,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 436 [2024-11-19 05:43:48,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand