./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/mix008.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix008.opt.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:14:23,350 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:14:23,390 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:14:23,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:14:23,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:14:23,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:14:23,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:14:23,414 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:14:23,415 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:14:23,415 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:14:23,415 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:14:23,415 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:14:23,415 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:14:23,415 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:14:23,415 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:14:23,415 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:14:23,415 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:14:23,416 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:14:23,416 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:14:23,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:14:23,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:14:23,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:14:23,416 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:14:23,416 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:14:23,416 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:14:23,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:14:23,416 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:14:23,416 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:14:23,417 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:14:23,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:14:23,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:14:23,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:14:23,417 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:14:23,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:14:23,417 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:14:23,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:14:23,417 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:14:23,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:14:23,418 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:14:23,418 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:14:23,418 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:14:23,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:14:23,418 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 [2025-02-08 05:14:23,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:14:23,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:14:23,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:14:23,689 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:14:23,689 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:14:23,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix008.opt.i [2025-02-08 05:14:24,894 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c2f43fc3f/d57467b948ba44bfb43449223b74bc8c/FLAG9350bb2fd [2025-02-08 05:14:25,227 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:14:25,232 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008.opt.i [2025-02-08 05:14:25,248 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c2f43fc3f/d57467b948ba44bfb43449223b74bc8c/FLAG9350bb2fd [2025-02-08 05:14:25,479 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c2f43fc3f/d57467b948ba44bfb43449223b74bc8c [2025-02-08 05:14:25,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:14:25,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:14:25,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:14:25,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:14:25,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:14:25,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:14:25" (1/1) ... [2025-02-08 05:14:25,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8933637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:14:25, skipping insertion in model container [2025-02-08 05:14:25,497 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:14:25" (1/1) ... [2025-02-08 05:14:25,528 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:14:25,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:14:25,882 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:14:25,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:14:25,998 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:14:25,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:14:25 WrapperNode [2025-02-08 05:14:25,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:14:26,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:14:26,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:14:26,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:14:26,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:14:25" (1/1) ... [2025-02-08 05:14:26,035 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:14:25" (1/1) ... [2025-02-08 05:14:26,088 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 970 [2025-02-08 05:14:26,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:14:26,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:14:26,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:14:26,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:14:26,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:14:25" (1/1) ... [2025-02-08 05:14:26,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:14:25" (1/1) ... [2025-02-08 05:14:26,106 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:14:25" (1/1) ... [2025-02-08 05:14:26,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:14:25" (1/1) ... [2025-02-08 05:14:26,138 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:14:25" (1/1) ... [2025-02-08 05:14:26,144 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:14:25" (1/1) ... [2025-02-08 05:14:26,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:14:25" (1/1) ... [2025-02-08 05:14:26,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:14:25" (1/1) ... [2025-02-08 05:14:26,155 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:14:26,159 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:14:26,159 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:14:26,159 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:14:26,160 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:14:25" (1/1) ... [2025-02-08 05:14:26,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:14:26,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:14:26,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 05:14:26,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 05:14:26,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 05:14:26,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:14:26,222 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 05:14:26,222 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 05:14:26,222 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 05:14:26,222 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 05:14:26,222 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 05:14:26,222 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 05:14:26,222 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-08 05:14:26,223 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-08 05:14:26,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:14:26,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 05:14:26,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:14:26,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:14:26,225 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:14:26,397 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:14:26,400 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:14:27,713 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:14:27,714 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:14:31,648 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-08 05:14:31,676 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-08 05:14:31,711 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:14:31,711 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:14:31,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:14:31 BoogieIcfgContainer [2025-02-08 05:14:31,712 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:14:31,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:14:31,714 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:14:31,717 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:14:31,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:14:25" (1/3) ... [2025-02-08 05:14:31,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb7a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:14:31, skipping insertion in model container [2025-02-08 05:14:31,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:14:25" (2/3) ... [2025-02-08 05:14:31,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb7a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:14:31, skipping insertion in model container [2025-02-08 05:14:31,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:14:31" (3/3) ... [2025-02-08 05:14:31,718 INFO L128 eAbstractionObserver]: Analyzing ICFG mix008.opt.i [2025-02-08 05:14:31,729 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:14:31,731 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix008.opt.i that has 5 procedures, 426 locations, 1 initial locations, 0 loop locations, and 295 error locations. [2025-02-08 05:14:31,731 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:14:32,091 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:14:32,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 438 places, 472 transitions, 960 flow [2025-02-08 05:14:32,706 INFO L124 PetriNetUnfolderBase]: 47/468 cut-off events. [2025-02-08 05:14:32,712 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:14:32,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 468 events. 47/468 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2727 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 430. Up to 2 conditions per place. [2025-02-08 05:14:32,732 INFO L82 GeneralOperation]: Start removeDead. Operand has 438 places, 472 transitions, 960 flow [2025-02-08 05:14:32,762 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 434 places, 468 transitions, 948 flow [2025-02-08 05:14:32,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:14:32,787 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;@7feb3b64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:14:32,791 INFO L334 AbstractCegarLoop]: Starting to check reachability of 555 error locations. [2025-02-08 05:14:32,802 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:14:32,802 INFO L124 PetriNetUnfolderBase]: 0/46 cut-off events. [2025-02-08 05:14:32,802 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:14:32,803 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:14:32,803 INFO L206 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] [2025-02-08 05:14:32,803 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err3ASSERT_VIOLATIONDATA_RACE === [P0Err3ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err0ASSERT_VIOLATIONDATA_RACE (and 551 more)] === [2025-02-08 05:14:32,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:14:32,809 INFO L85 PathProgramCache]: Analyzing trace with hash 13995689, now seen corresponding path program 1 times [2025-02-08 05:14:32,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:14:32,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598593038] [2025-02-08 05:14:32,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:14:32,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:14:32,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-08 05:14:32,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-08 05:14:32,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:14:32,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:14:33,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:14:33,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:14:33,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598593038] [2025-02-08 05:14:33,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598593038] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:14:33,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:14:33,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 05:14:33,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763048648] [2025-02-08 05:14:33,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:14:33,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 05:14:33,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:14:33,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 05:14:33,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 05:14:33,046 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 472 [2025-02-08 05:14:33,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 468 transitions, 948 flow. Second operand has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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) [2025-02-08 05:14:33,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:14:33,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 472 [2025-02-08 05:14:33,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:15:15,860 INFO L124 PetriNetUnfolderBase]: 12770/32265 cut-off events. [2025-02-08 05:15:15,861 INFO L125 PetriNetUnfolderBase]: For 181/181 co-relation queries the response was YES. [2025-02-08 05:15:15,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49183 conditions, 32265 events. 12770/32265 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 1243. Compared 386489 event pairs, 11270 based on Foata normal form. 2642/31410 useless extension candidates. Maximal degree in co-relation 49130. Up to 16551 conditions per place. [2025-02-08 05:15:16,048 INFO L140 encePairwiseOnDemand]: 134/472 looper letters, 27 selfloop transitions, 0 changer transitions 0/128 dead transitions. [2025-02-08 05:15:16,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 128 transitions, 322 flow [2025-02-08 05:15:16,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 05:15:16,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-08 05:15:16,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 577 transitions. [2025-02-08 05:15:16,063 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.611228813559322 [2025-02-08 05:15:16,065 INFO L175 Difference]: Start difference. First operand has 434 places, 468 transitions, 948 flow. Second operand 2 states and 577 transitions. [2025-02-08 05:15:16,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 128 transitions, 322 flow [2025-02-08 05:15:16,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 128 transitions, 318 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 05:15:16,070 INFO L231 Difference]: Finished difference. Result has 136 places, 128 transitions, 264 flow [2025-02-08 05:15:16,072 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=264, PETRI_PLACES=136, PETRI_TRANSITIONS=128} [2025-02-08 05:15:16,074 INFO L279 CegarLoopForPetriNet]: 434 programPoint places, -298 predicate places. [2025-02-08 05:15:16,076 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 128 transitions, 264 flow [2025-02-08 05:15:16,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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) [2025-02-08 05:15:16,076 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:15:16,076 INFO L206 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] [2025-02-08 05:15:16,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:15:16,076 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [P0Err3ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err0ASSERT_VIOLATIONDATA_RACE (and 551 more)] === [2025-02-08 05:15:16,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:15:16,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1164448896, now seen corresponding path program 1 times [2025-02-08 05:15:16,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:15:16,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234321561] [2025-02-08 05:15:16,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:15:16,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:15:16,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-08 05:15:16,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 05:15:16,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:15:16,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:15:16,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:15:16,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:15:16,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234321561] [2025-02-08 05:15:16,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234321561] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:15:16,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:15:16,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:15:16,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859981015] [2025-02-08 05:15:16,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:15:16,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:15:16,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:15:16,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:15:16,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:15:16,187 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 472 [2025-02-08 05:15:16,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 128 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2025-02-08 05:15:16,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:15:16,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 472 [2025-02-08 05:15:16,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand