./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/parallel-misc-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 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/weaver/parallel-misc-4.wvr.c -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 287b872f435ea31dbbf77f267944e24b96122b5f745db0674c91555289f3b84c --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:32:16,119 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:32:16,167 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:32:16,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:32:16,171 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:32:16,183 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:32:16,184 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:32:16,184 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:32:16,184 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:32:16,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:32:16,184 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:32:16,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:32:16,184 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:32:16,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:32:16,185 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:32:16,185 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:32:16,185 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:32:16,185 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:32:16,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:32:16,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:32:16,185 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:32:16,185 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:32:16,185 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:32:16,185 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:32:16,185 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:32:16,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:32:16,186 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:32:16,186 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:32:16,186 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:32:16,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:32:16,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:32:16,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:32:16,186 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:32:16,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:32:16,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:32:16,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:32:16,186 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:32:16,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:32:16,187 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:32:16,187 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:32:16,187 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:32:16,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:32:16,187 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:32:16,187 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:32:16,187 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:32:16,187 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:32:16,187 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 -> 287b872f435ea31dbbf77f267944e24b96122b5f745db0674c91555289f3b84c [2025-01-09 21:32:16,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:32:16,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:32:16,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:32:16,392 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:32:16,392 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:32:16,393 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-misc-4.wvr.c [2025-01-09 21:32:17,567 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/52eca16e5/08ffe8b3ba38494e8f9ac4ced46155e1/FLAG80d59f323 [2025-01-09 21:32:17,791 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:32:17,794 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-4.wvr.c [2025-01-09 21:32:17,801 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/52eca16e5/08ffe8b3ba38494e8f9ac4ced46155e1/FLAG80d59f323 [2025-01-09 21:32:18,145 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/52eca16e5/08ffe8b3ba38494e8f9ac4ced46155e1 [2025-01-09 21:32:18,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:32:18,148 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:32:18,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:32:18,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:32:18,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:32:18,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:32:18" (1/1) ... [2025-01-09 21:32:18,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72635aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:18, skipping insertion in model container [2025-01-09 21:32:18,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:32:18" (1/1) ... [2025-01-09 21:32:18,173 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:32:18,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:32:18,338 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:32:18,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:32:18,373 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:32:18,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:18 WrapperNode [2025-01-09 21:32:18,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:32:18,375 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:32:18,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:32:18,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:32:18,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:18" (1/1) ... [2025-01-09 21:32:18,390 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:18" (1/1) ... [2025-01-09 21:32:18,403 INFO L138 Inliner]: procedures = 19, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2025-01-09 21:32:18,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:32:18,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:32:18,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:32:18,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:32:18,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:18" (1/1) ... [2025-01-09 21:32:18,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:18" (1/1) ... [2025-01-09 21:32:18,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:18" (1/1) ... [2025-01-09 21:32:18,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:18" (1/1) ... [2025-01-09 21:32:18,421 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:18" (1/1) ... [2025-01-09 21:32:18,422 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:18" (1/1) ... [2025-01-09 21:32:18,427 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:18" (1/1) ... [2025-01-09 21:32:18,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:18" (1/1) ... [2025-01-09 21:32:18,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:18" (1/1) ... [2025-01-09 21:32:18,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:32:18,433 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:32:18,433 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:32:18,433 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:32:18,434 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:18" (1/1) ... [2025-01-09 21:32:18,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:32:18,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:32:18,468 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) [2025-01-09 21:32:18,472 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 [2025-01-09 21:32:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:32:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-09 21:32:18,494 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-09 21:32:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-09 21:32:18,494 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-09 21:32:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-09 21:32:18,495 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-09 21:32:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:32:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:32:18,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:32:18,496 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:32:18,602 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:32:18,603 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:32:18,779 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:32:18,780 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:32:18,792 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:32:18,792 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 21:32:18,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:32:18 BoogieIcfgContainer [2025-01-09 21:32:18,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:32:18,794 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:32:18,794 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:32:18,800 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:32:18,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:32:18" (1/3) ... [2025-01-09 21:32:18,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194893e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:32:18, skipping insertion in model container [2025-01-09 21:32:18,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:32:18" (2/3) ... [2025-01-09 21:32:18,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194893e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:32:18, skipping insertion in model container [2025-01-09 21:32:18,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:32:18" (3/3) ... [2025-01-09 21:32:18,803 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-4.wvr.c [2025-01-09 21:32:18,815 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:32:18,817 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-4.wvr.c that has 4 procedures, 142 locations, 1 initial locations, 2 loop locations, and 11 error locations. [2025-01-09 21:32:18,817 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:32:18,874 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-09 21:32:18,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 148 transitions, 317 flow [2025-01-09 21:32:18,955 INFO L124 PetriNetUnfolderBase]: 7/145 cut-off events. [2025-01-09 21:32:18,960 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-01-09 21:32:18,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 7/145 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 198 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 131. Up to 2 conditions per place. [2025-01-09 21:32:18,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 148 transitions, 317 flow [2025-01-09 21:32:18,967 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 135 transitions, 282 flow [2025-01-09 21:32:18,975 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:32:18,986 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;@60a47bf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:32:18,986 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2025-01-09 21:32:18,994 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:32:18,995 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-01-09 21:32:18,995 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:32:18,995 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:18,996 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] [2025-01-09 21:32:18,997 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-01-09 21:32:19,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:19,002 INFO L85 PathProgramCache]: Analyzing trace with hash 491586800, now seen corresponding path program 1 times [2025-01-09 21:32:19,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:19,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749106275] [2025-01-09 21:32:19,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:19,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:19,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-09 21:32:19,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-09 21:32:19,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:19,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:19,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:19,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:19,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749106275] [2025-01-09 21:32:19,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749106275] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:19,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:19,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:32:19,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994921411] [2025-01-09 21:32:19,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:19,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:32:19,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:19,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:32:19,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:32:19,211 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 148 [2025-01-09 21:32:19,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2025-01-09 21:32:19,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:19,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 148 [2025-01-09 21:32:19,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:19,286 INFO L124 PetriNetUnfolderBase]: 21/190 cut-off events. [2025-01-09 21:32:19,286 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2025-01-09 21:32:19,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 190 events. 21/190 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 503 event pairs, 10 based on Foata normal form. 1/162 useless extension candidates. Maximal degree in co-relation 192. Up to 38 conditions per place. [2025-01-09 21:32:19,289 INFO L140 encePairwiseOnDemand]: 144/148 looper letters, 14 selfloop transitions, 2 changer transitions 1/133 dead transitions. [2025-01-09 21:32:19,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 133 transitions, 310 flow [2025-01-09 21:32:19,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:32:19,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:32:19,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2025-01-09 21:32:19,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2025-01-09 21:32:19,300 INFO L175 Difference]: Start difference. First operand has 138 places, 135 transitions, 282 flow. Second operand 3 states and 396 transitions. [2025-01-09 21:32:19,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 133 transitions, 310 flow [2025-01-09 21:32:19,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 133 transitions, 304 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-01-09 21:32:19,306 INFO L231 Difference]: Finished difference. Result has 135 places, 132 transitions, 274 flow [2025-01-09 21:32:19,308 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=135, PETRI_TRANSITIONS=132} [2025-01-09 21:32:19,310 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -3 predicate places. [2025-01-09 21:32:19,311 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 132 transitions, 274 flow [2025-01-09 21:32:19,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2025-01-09 21:32:19,311 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:19,311 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] [2025-01-09 21:32:19,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:32:19,312 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-01-09 21:32:19,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:19,312 INFO L85 PathProgramCache]: Analyzing trace with hash -895097005, now seen corresponding path program 1 times [2025-01-09 21:32:19,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:19,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036682445] [2025-01-09 21:32:19,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:19,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:19,319 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-09 21:32:19,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-09 21:32:19,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:19,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:19,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:19,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:19,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036682445] [2025-01-09 21:32:19,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036682445] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:19,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:19,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:32:19,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114716392] [2025-01-09 21:32:19,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:19,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:32:19,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:19,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:32:19,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:32:19,427 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 148 [2025-01-09 21:32:19,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 132 transitions, 274 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) [2025-01-09 21:32:19,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:19,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 148 [2025-01-09 21:32:19,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:19,512 INFO L124 PetriNetUnfolderBase]: 46/311 cut-off events. [2025-01-09 21:32:19,512 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-01-09 21:32:19,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 311 events. 46/311 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1263 event pairs, 28 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 383. Up to 68 conditions per place. [2025-01-09 21:32:19,518 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 13 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2025-01-09 21:32:19,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 131 transitions, 302 flow [2025-01-09 21:32:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:32:19,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:32:19,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2025-01-09 21:32:19,524 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8941441441441441 [2025-01-09 21:32:19,524 INFO L175 Difference]: Start difference. First operand has 135 places, 132 transitions, 274 flow. Second operand 3 states and 397 transitions. [2025-01-09 21:32:19,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 131 transitions, 302 flow [2025-01-09 21:32:19,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 131 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:32:19,526 INFO L231 Difference]: Finished difference. Result has 133 places, 131 transitions, 272 flow [2025-01-09 21:32:19,527 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=133, PETRI_TRANSITIONS=131} [2025-01-09 21:32:19,527 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -5 predicate places. [2025-01-09 21:32:19,527 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 131 transitions, 272 flow [2025-01-09 21:32:19,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2025-01-09 21:32:19,527 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:19,527 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] [2025-01-09 21:32:19,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:32:19,528 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-01-09 21:32:19,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:19,528 INFO L85 PathProgramCache]: Analyzing trace with hash 113443365, now seen corresponding path program 1 times [2025-01-09 21:32:19,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:19,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051422471] [2025-01-09 21:32:19,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:19,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:19,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-01-09 21:32:19,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-01-09 21:32:19,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:19,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:19,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:19,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:19,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051422471] [2025-01-09 21:32:19,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051422471] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:19,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:19,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:32:19,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255977993] [2025-01-09 21:32:19,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:19,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:32:19,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:19,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:32:19,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:32:19,630 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 148 [2025-01-09 21:32:19,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 131 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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) [2025-01-09 21:32:19,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:19,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 148 [2025-01-09 21:32:19,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:19,677 INFO L124 PetriNetUnfolderBase]: 31/275 cut-off events. [2025-01-09 21:32:19,678 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-01-09 21:32:19,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 275 events. 31/275 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1086 event pairs, 10 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 331. Up to 43 conditions per place. [2025-01-09 21:32:19,681 INFO L140 encePairwiseOnDemand]: 141/148 looper letters, 18 selfloop transitions, 3 changer transitions 0/132 dead transitions. [2025-01-09 21:32:19,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 132 transitions, 322 flow [2025-01-09 21:32:19,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:32:19,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:32:19,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2025-01-09 21:32:19,682 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8941441441441441 [2025-01-09 21:32:19,683 INFO L175 Difference]: Start difference. First operand has 133 places, 131 transitions, 272 flow. Second operand 3 states and 397 transitions. [2025-01-09 21:32:19,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 132 transitions, 322 flow [2025-01-09 21:32:19,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 132 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:32:19,685 INFO L231 Difference]: Finished difference. Result has 130 places, 128 transitions, 273 flow [2025-01-09 21:32:19,685 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=130, PETRI_TRANSITIONS=128} [2025-01-09 21:32:19,686 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -8 predicate places. [2025-01-09 21:32:19,686 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 128 transitions, 273 flow [2025-01-09 21:32:19,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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) [2025-01-09 21:32:19,687 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:19,687 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] [2025-01-09 21:32:19,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:32:19,687 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-01-09 21:32:19,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:19,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1644900308, now seen corresponding path program 1 times [2025-01-09 21:32:19,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:19,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215734868] [2025-01-09 21:32:19,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:19,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:19,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-09 21:32:19,704 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-09 21:32:19,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:19,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:19,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:19,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:19,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215734868] [2025-01-09 21:32:19,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215734868] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:19,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:19,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:32:19,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335682938] [2025-01-09 21:32:19,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:19,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:32:19,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:19,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:32:19,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:32:19,756 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 148 [2025-01-09 21:32:19,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 128 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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) [2025-01-09 21:32:19,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:19,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 148 [2025-01-09 21:32:19,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:19,808 INFO L124 PetriNetUnfolderBase]: 108/495 cut-off events. [2025-01-09 21:32:19,808 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-01-09 21:32:19,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 495 events. 108/495 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2621 event pairs, 24 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 330. Up to 125 conditions per place. [2025-01-09 21:32:19,810 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 18 selfloop transitions, 3 changer transitions 0/132 dead transitions. [2025-01-09 21:32:19,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 132 transitions, 329 flow [2025-01-09 21:32:19,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:32:19,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:32:19,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 405 transitions. [2025-01-09 21:32:19,812 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9121621621621622 [2025-01-09 21:32:19,812 INFO L175 Difference]: Start difference. First operand has 130 places, 128 transitions, 273 flow. Second operand 3 states and 405 transitions. [2025-01-09 21:32:19,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 132 transitions, 329 flow [2025-01-09 21:32:19,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 132 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:32:19,814 INFO L231 Difference]: Finished difference. Result has 129 places, 126 transitions, 277 flow [2025-01-09 21:32:19,814 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=129, PETRI_TRANSITIONS=126} [2025-01-09 21:32:19,815 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -9 predicate places. [2025-01-09 21:32:19,815 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 126 transitions, 277 flow [2025-01-09 21:32:19,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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) [2025-01-09 21:32:19,815 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:19,815 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] [2025-01-09 21:32:19,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:32:19,815 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-01-09 21:32:19,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:19,816 INFO L85 PathProgramCache]: Analyzing trace with hash -937826895, now seen corresponding path program 1 times [2025-01-09 21:32:19,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:19,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179254570] [2025-01-09 21:32:19,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:19,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:19,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-09 21:32:19,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-09 21:32:19,829 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:19,829 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:19,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:19,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:19,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179254570] [2025-01-09 21:32:19,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179254570] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:19,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:19,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:32:19,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82364912] [2025-01-09 21:32:19,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:19,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:32:19,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:19,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:32:19,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:32:19,899 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 148 [2025-01-09 21:32:19,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 126 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 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) [2025-01-09 21:32:19,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:19,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 148 [2025-01-09 21:32:19,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:19,932 INFO L124 PetriNetUnfolderBase]: 49/316 cut-off events. [2025-01-09 21:32:19,933 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2025-01-09 21:32:19,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 316 events. 49/316 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1404 event pairs, 23 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 248. Up to 78 conditions per place. [2025-01-09 21:32:19,934 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 16 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2025-01-09 21:32:19,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 127 transitions, 319 flow [2025-01-09 21:32:19,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:32:19,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:32:19,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2025-01-09 21:32:19,936 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9054054054054054 [2025-01-09 21:32:19,936 INFO L175 Difference]: Start difference. First operand has 129 places, 126 transitions, 277 flow. Second operand 3 states and 402 transitions. [2025-01-09 21:32:19,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 127 transitions, 319 flow [2025-01-09 21:32:19,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 127 transitions, 316 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:32:19,938 INFO L231 Difference]: Finished difference. Result has 129 places, 125 transitions, 276 flow [2025-01-09 21:32:19,938 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=129, PETRI_TRANSITIONS=125} [2025-01-09 21:32:19,938 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -9 predicate places. [2025-01-09 21:32:19,939 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 125 transitions, 276 flow [2025-01-09 21:32:19,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 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) [2025-01-09 21:32:19,939 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:19,939 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, 1] [2025-01-09 21:32:19,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:32:19,939 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-01-09 21:32:19,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:19,940 INFO L85 PathProgramCache]: Analyzing trace with hash 342023573, now seen corresponding path program 1 times [2025-01-09 21:32:19,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:19,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030391475] [2025-01-09 21:32:19,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:19,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:19,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-01-09 21:32:19,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-01-09 21:32:19,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:19,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:19,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:19,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:19,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030391475] [2025-01-09 21:32:19,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030391475] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:19,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:19,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:32:19,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699875723] [2025-01-09 21:32:19,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:19,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:32:19,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:19,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:32:19,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:32:20,014 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 148 [2025-01-09 21:32:20,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 125 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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) [2025-01-09 21:32:20,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:20,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 148 [2025-01-09 21:32:20,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:20,059 INFO L124 PetriNetUnfolderBase]: 117/500 cut-off events. [2025-01-09 21:32:20,060 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2025-01-09 21:32:20,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 500 events. 117/500 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2614 event pairs, 43 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 770. Up to 135 conditions per place. [2025-01-09 21:32:20,061 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 0 selfloop transitions, 0 changer transitions 128/128 dead transitions. [2025-01-09 21:32:20,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 128 transitions, 323 flow [2025-01-09 21:32:20,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:32:20,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:32:20,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2025-01-09 21:32:20,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9144144144144144 [2025-01-09 21:32:20,065 INFO L175 Difference]: Start difference. First operand has 129 places, 125 transitions, 276 flow. Second operand 3 states and 406 transitions. [2025-01-09 21:32:20,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 128 transitions, 323 flow [2025-01-09 21:32:20,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 128 transitions, 319 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:32:20,067 INFO L231 Difference]: Finished difference. Result has 128 places, 0 transitions, 0 flow [2025-01-09 21:32:20,068 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=128, PETRI_TRANSITIONS=0} [2025-01-09 21:32:20,068 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -10 predicate places. [2025-01-09 21:32:20,069 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 0 transitions, 0 flow [2025-01-09 21:32:20,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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) [2025-01-09 21:32:20,072 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (19 of 20 remaining) [2025-01-09 21:32:20,072 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2025-01-09 21:32:20,072 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2025-01-09 21:32:20,072 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2025-01-09 21:32:20,073 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2025-01-09 21:32:20,073 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2025-01-09 21:32:20,073 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2025-01-09 21:32:20,073 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2025-01-09 21:32:20,073 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2025-01-09 21:32:20,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2025-01-09 21:32:20,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2025-01-09 21:32:20,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2025-01-09 21:32:20,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 20 remaining) [2025-01-09 21:32:20,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 20 remaining) [2025-01-09 21:32:20,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2025-01-09 21:32:20,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2025-01-09 21:32:20,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2025-01-09 21:32:20,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2025-01-09 21:32:20,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2025-01-09 21:32:20,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2025-01-09 21:32:20,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 21:32:20,075 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-01-09 21:32:20,079 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-09 21:32:20,079 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 21:32:20,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 09:32:20 BasicIcfg [2025-01-09 21:32:20,083 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 21:32:20,083 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 21:32:20,083 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 21:32:20,083 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 21:32:20,084 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:32:18" (3/4) ... [2025-01-09 21:32:20,085 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 21:32:20,087 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-01-09 21:32:20,087 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-01-09 21:32:20,087 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-01-09 21:32:20,089 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-01-09 21:32:20,090 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-09 21:32:20,090 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 21:32:20,090 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 21:32:20,138 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 21:32:20,138 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 21:32:20,138 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 21:32:20,139 INFO L158 Benchmark]: Toolchain (without parser) took 1991.14ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 50.9MB in the end (delta: 59.9MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2025-01-09 21:32:20,139 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:32:20,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.14ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 99.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:32:20,140 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.70ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 98.3MB in the end (delta: 969.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:32:20,140 INFO L158 Benchmark]: Boogie Preprocessor took 26.95ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 96.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:32:20,140 INFO L158 Benchmark]: RCFGBuilder took 359.67ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 81.6MB in the end (delta: 15.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:32:20,140 INFO L158 Benchmark]: TraceAbstraction took 1288.73ms. Allocated memory is still 142.6MB. Free memory was 81.0MB in the beginning and 56.6MB in the end (delta: 24.3MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2025-01-09 21:32:20,140 INFO L158 Benchmark]: Witness Printer took 55.41ms. Allocated memory is still 142.6MB. Free memory was 56.6MB in the beginning and 50.9MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:32:20,141 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.14ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 99.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.70ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 98.3MB in the end (delta: 969.9kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.95ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 96.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 359.67ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 81.6MB in the end (delta: 15.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1288.73ms. Allocated memory is still 142.6MB. Free memory was 81.0MB in the beginning and 56.6MB in the end (delta: 24.3MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * Witness Printer took 55.41ms. Allocated memory is still 142.6MB. Free memory was 56.6MB in the beginning and 50.9MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 192 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 215 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 250 IncrementalHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 40 mSDtfsCounter, 250 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 283 NumberOfCodeBlocks, 283 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 277 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-09 21:32:20,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE