./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/38_rand_cas_vs_concur.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc 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-ext/38_rand_cas_vs_concur.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 628ef5ad19754647fb807fc1cc13e384334d380a6e3691b7b5f1842f42e5f662 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:00:45,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:00:45,714 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:00:45,718 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:00:45,719 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:00:45,732 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:00:45,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:00:45,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:00:45,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:00:45,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:00:45,733 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:00:45,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:00:45,733 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:00:45,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:00:45,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:00:45,734 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:00:45,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:00:45,734 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:00:45,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:00:45,734 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:00:45,734 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:00:45,734 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:00:45,734 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:00:45,734 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:00:45,734 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:00:45,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:00:45,734 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:00:45,735 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:00:45,735 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:00:45,735 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:00:45,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:00:45,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:00:45,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:00:45,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:00:45,735 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:00:45,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:00:45,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:00:45,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:00:45,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:00:45,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:00:45,735 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:00:45,736 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:00:45,736 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 -> 628ef5ad19754647fb807fc1cc13e384334d380a6e3691b7b5f1842f42e5f662 [2025-02-06 09:00:45,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:00:46,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:00:46,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:00:46,004 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:00:46,004 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:00:46,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/38_rand_cas_vs_concur.i [2025-02-06 09:00:47,157 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8d023c48f/02602cdc8951473dba8a282d0e5a3407/FLAG85eb87af5 [2025-02-06 09:00:47,424 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:00:47,425 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/38_rand_cas_vs_concur.i [2025-02-06 09:00:47,439 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8d023c48f/02602cdc8951473dba8a282d0e5a3407/FLAG85eb87af5 [2025-02-06 09:00:47,731 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8d023c48f/02602cdc8951473dba8a282d0e5a3407 [2025-02-06 09:00:47,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:00:47,734 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:00:47,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:00:47,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:00:47,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:00:47,739 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:00:47" (1/1) ... [2025-02-06 09:00:47,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66750d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:47, skipping insertion in model container [2025-02-06 09:00:47,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:00:47" (1/1) ... [2025-02-06 09:00:47,763 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:00:47,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:00:47,993 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:00:48,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:00:48,059 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:00:48,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:48 WrapperNode [2025-02-06 09:00:48,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:00:48,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:00:48,061 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:00:48,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:00:48,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:48" (1/1) ... [2025-02-06 09:00:48,072 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:48" (1/1) ... [2025-02-06 09:00:48,087 INFO L138 Inliner]: procedures = 170, calls = 22, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 116 [2025-02-06 09:00:48,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:00:48,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:00:48,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:00:48,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:00:48,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:48" (1/1) ... [2025-02-06 09:00:48,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:48" (1/1) ... [2025-02-06 09:00:48,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:48" (1/1) ... [2025-02-06 09:00:48,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:48" (1/1) ... [2025-02-06 09:00:48,100 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:48" (1/1) ... [2025-02-06 09:00:48,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:48" (1/1) ... [2025-02-06 09:00:48,102 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:48" (1/1) ... [2025-02-06 09:00:48,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:48" (1/1) ... [2025-02-06 09:00:48,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:00:48,104 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:00:48,104 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:00:48,104 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:00:48,105 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:48" (1/1) ... [2025-02-06 09:00:48,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:00:48,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:00:48,135 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) [2025-02-06 09:00:48,138 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 [2025-02-06 09:00:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:00:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-06 09:00:48,155 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-06 09:00:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:00:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:00:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:00:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:00:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:00:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:00:48,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:00:48,156 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:00:48,236 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:00:48,238 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:00:48,475 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L712: havoc PseudoRandomUsingAtomic_nex_~#casret~0#1.base, PseudoRandomUsingAtomic_nex_~#casret~0#1.offset; [2025-02-06 09:00:48,475 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L712-1: SUMMARY for call ULTIMATE.dealloc(PseudoRandomUsingAtomic_nex_~#casret~0#1.base, PseudoRandomUsingAtomic_nex_~#casret~0#1.offset); srcloc: null [2025-02-06 09:00:48,516 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:00:48,517 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:00:48,633 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:00:48,634 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:00:48,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:00:48 BoogieIcfgContainer [2025-02-06 09:00:48,635 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:00:48,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:00:48,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:00:48,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:00:48,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:00:47" (1/3) ... [2025-02-06 09:00:48,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6880e856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:00:48, skipping insertion in model container [2025-02-06 09:00:48,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:48" (2/3) ... [2025-02-06 09:00:48,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6880e856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:00:48, skipping insertion in model container [2025-02-06 09:00:48,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:00:48" (3/3) ... [2025-02-06 09:00:48,643 INFO L128 eAbstractionObserver]: Analyzing ICFG 38_rand_cas_vs_concur.i [2025-02-06 09:00:48,655 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:00:48,656 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 38_rand_cas_vs_concur.i that has 2 procedures, 89 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2025-02-06 09:00:48,657 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:00:48,715 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:00:48,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 95 transitions, 194 flow [2025-02-06 09:00:48,808 INFO L124 PetriNetUnfolderBase]: 6/102 cut-off events. [2025-02-06 09:00:48,809 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:00:48,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 102 events. 6/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 113 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2025-02-06 09:00:48,815 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 95 transitions, 194 flow [2025-02-06 09:00:48,818 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 95 transitions, 194 flow [2025-02-06 09:00:48,828 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:00:48,839 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;@5117d195, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:00:48,839 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-02-06 09:00:48,845 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:00:48,845 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2025-02-06 09:00:48,845 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:00:48,846 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:48,846 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:00:48,846 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2025-02-06 09:00:48,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:48,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1893168088, now seen corresponding path program 1 times [2025-02-06 09:00:48,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:48,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846982428] [2025-02-06 09:00:48,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:48,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:48,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 09:00:48,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 09:00:48,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:48,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:48,928 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:00:48,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 09:00:48,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 09:00:48,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:48,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:48,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:00:48,964 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:00:48,965 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2025-02-06 09:00:48,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2025-02-06 09:00:48,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2025-02-06 09:00:48,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2025-02-06 09:00:48,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2025-02-06 09:00:48,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2025-02-06 09:00:48,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2025-02-06 09:00:48,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2025-02-06 09:00:48,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2025-02-06 09:00:48,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2025-02-06 09:00:48,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2025-02-06 09:00:48,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2025-02-06 09:00:48,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2025-02-06 09:00:48,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:00:48,968 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-06 09:00:48,970 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:00:48,970 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 09:00:49,028 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:00:49,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 168 transitions, 346 flow [2025-02-06 09:00:49,095 INFO L124 PetriNetUnfolderBase]: 12/184 cut-off events. [2025-02-06 09:00:49,096 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 09:00:49,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 184 events. 12/184 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 452 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 153. Up to 3 conditions per place. [2025-02-06 09:00:49,099 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 168 transitions, 346 flow [2025-02-06 09:00:49,100 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 168 transitions, 346 flow [2025-02-06 09:00:49,104 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:00:49,105 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;@5117d195, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:00:49,105 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2025-02-06 09:00:49,113 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:00:49,113 INFO L124 PetriNetUnfolderBase]: 0/58 cut-off events. [2025-02-06 09:00:49,113 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 09:00:49,113 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:49,113 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:00:49,113 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2025-02-06 09:00:49,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:49,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1061384779, now seen corresponding path program 1 times [2025-02-06 09:00:49,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:49,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667519977] [2025-02-06 09:00:49,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:49,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:49,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 09:00:49,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 09:00:49,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:49,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:49,137 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:00:49,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 09:00:49,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 09:00:49,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:49,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:49,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:00:49,156 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:00:49,156 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2025-02-06 09:00:49,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2025-02-06 09:00:49,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2025-02-06 09:00:49,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2025-02-06 09:00:49,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2025-02-06 09:00:49,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2025-02-06 09:00:49,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining) [2025-02-06 09:00:49,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2025-02-06 09:00:49,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2025-02-06 09:00:49,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2025-02-06 09:00:49,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2025-02-06 09:00:49,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2025-02-06 09:00:49,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2025-02-06 09:00:49,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2025-02-06 09:00:49,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2025-02-06 09:00:49,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2025-02-06 09:00:49,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2025-02-06 09:00:49,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2025-02-06 09:00:49,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2025-02-06 09:00:49,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:00:49,158 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-06 09:00:49,158 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:00:49,158 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-06 09:00:49,244 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:00:49,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 241 transitions, 500 flow [2025-02-06 09:00:49,335 INFO L124 PetriNetUnfolderBase]: 18/266 cut-off events. [2025-02-06 09:00:49,335 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-06 09:00:49,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 266 events. 18/266 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 886 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 225. Up to 4 conditions per place. [2025-02-06 09:00:49,341 INFO L82 GeneralOperation]: Start removeDead. Operand has 230 places, 241 transitions, 500 flow [2025-02-06 09:00:49,344 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 230 places, 241 transitions, 500 flow [2025-02-06 09:00:49,345 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:00:49,346 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;@5117d195, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:00:49,346 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2025-02-06 09:00:49,353 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:00:49,354 INFO L124 PetriNetUnfolderBase]: 0/73 cut-off events. [2025-02-06 09:00:49,354 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 09:00:49,354 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:49,354 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] [2025-02-06 09:00:49,354 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2025-02-06 09:00:49,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:49,355 INFO L85 PathProgramCache]: Analyzing trace with hash 119218746, now seen corresponding path program 1 times [2025-02-06 09:00:49,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:49,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903843101] [2025-02-06 09:00:49,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:49,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:49,368 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 09:00:49,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 09:00:49,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:49,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:00:49,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:00:49,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:00:49,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903843101] [2025-02-06 09:00:49,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903843101] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:00:49,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:00:49,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:00:49,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488567698] [2025-02-06 09:00:49,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:00:49,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:00:49,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:00:49,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:00:49,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:00:50,058 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 241 [2025-02-06 09:00:50,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 241 transitions, 500 flow. Second operand has 6 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 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) [2025-02-06 09:00:50,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:00:50,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 241 [2025-02-06 09:00:50,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:00:51,761 INFO L124 PetriNetUnfolderBase]: 2059/10157 cut-off events. [2025-02-06 09:00:51,762 INFO L125 PetriNetUnfolderBase]: For 568/568 co-relation queries the response was YES. [2025-02-06 09:00:51,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13500 conditions, 10157 events. 2059/10157 cut-off events. For 568/568 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 112744 event pairs, 154 based on Foata normal form. 2611/11915 useless extension candidates. Maximal degree in co-relation 10492. Up to 1016 conditions per place. [2025-02-06 09:00:51,869 INFO L140 encePairwiseOnDemand]: 195/241 looper letters, 78 selfloop transitions, 36 changer transitions 0/296 dead transitions. [2025-02-06 09:00:51,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 296 transitions, 886 flow [2025-02-06 09:00:51,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:00:51,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:00:51,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1370 transitions. [2025-02-06 09:00:51,884 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9474412171507607 [2025-02-06 09:00:51,885 INFO L175 Difference]: Start difference. First operand has 230 places, 241 transitions, 500 flow. Second operand 6 states and 1370 transitions. [2025-02-06 09:00:51,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 296 transitions, 886 flow [2025-02-06 09:00:51,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 296 transitions, 876 flow, removed 5 selfloop flow, removed 0 redundant places. [2025-02-06 09:00:51,895 INFO L231 Difference]: Finished difference. Result has 218 places, 243 transitions, 688 flow [2025-02-06 09:00:51,897 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=688, PETRI_PLACES=218, PETRI_TRANSITIONS=243} [2025-02-06 09:00:51,899 INFO L279 CegarLoopForPetriNet]: 230 programPoint places, -12 predicate places. [2025-02-06 09:00:51,899 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 243 transitions, 688 flow [2025-02-06 09:00:51,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 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) [2025-02-06 09:00:51,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:51,900 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:00:51,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:00:51,900 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2025-02-06 09:00:51,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:51,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1196040559, now seen corresponding path program 1 times [2025-02-06 09:00:51,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:51,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222727814] [2025-02-06 09:00:51,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:51,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:51,911 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 09:00:51,916 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 09:00:51,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:51,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:51,918 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:00:51,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 09:00:51,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 09:00:51,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:51,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:51,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:00:51,933 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:00:51,933 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2025-02-06 09:00:51,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2025-02-06 09:00:51,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2025-02-06 09:00:51,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2025-02-06 09:00:51,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2025-02-06 09:00:51,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2025-02-06 09:00:51,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2025-02-06 09:00:51,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2025-02-06 09:00:51,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2025-02-06 09:00:51,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2025-02-06 09:00:51,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2025-02-06 09:00:51,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2025-02-06 09:00:51,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2025-02-06 09:00:51,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2025-02-06 09:00:51,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2025-02-06 09:00:51,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2025-02-06 09:00:51,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2025-02-06 09:00:51,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2025-02-06 09:00:51,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2025-02-06 09:00:51,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2025-02-06 09:00:51,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2025-02-06 09:00:51,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2025-02-06 09:00:51,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2025-02-06 09:00:51,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2025-02-06 09:00:51,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2025-02-06 09:00:51,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:00:51,936 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 09:00:51,936 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:00:51,937 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-02-06 09:00:52,002 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:00:52,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 299 places, 314 transitions, 656 flow [2025-02-06 09:00:52,041 INFO L124 PetriNetUnfolderBase]: 24/348 cut-off events. [2025-02-06 09:00:52,042 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-06 09:00:52,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 348 events. 24/348 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1345 event pairs, 0 based on Foata normal form. 0/295 useless extension candidates. Maximal degree in co-relation 297. Up to 5 conditions per place. [2025-02-06 09:00:52,045 INFO L82 GeneralOperation]: Start removeDead. Operand has 299 places, 314 transitions, 656 flow [2025-02-06 09:00:52,049 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 299 places, 314 transitions, 656 flow [2025-02-06 09:00:52,050 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:00:52,050 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;@5117d195, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:00:52,050 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2025-02-06 09:00:52,055 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:00:52,055 INFO L124 PetriNetUnfolderBase]: 0/73 cut-off events. [2025-02-06 09:00:52,055 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 09:00:52,055 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:52,055 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] [2025-02-06 09:00:52,056 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-02-06 09:00:52,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:52,056 INFO L85 PathProgramCache]: Analyzing trace with hash -11337662, now seen corresponding path program 1 times [2025-02-06 09:00:52,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:52,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483513796] [2025-02-06 09:00:52,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:52,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:52,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 09:00:52,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 09:00:52,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:52,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:00:52,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:00:52,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:00:52,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483513796] [2025-02-06 09:00:52,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483513796] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:00:52,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:00:52,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:00:52,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265380446] [2025-02-06 09:00:52,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:00:52,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:00:52,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:00:52,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:00:52,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:00:52,556 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 314 [2025-02-06 09:00:52,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 314 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 245.16666666666666) internal successors, (1471), 6 states have internal predecessors, (1471), 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) [2025-02-06 09:00:52,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:00:52,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 314 [2025-02-06 09:00:52,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:01:03,334 INFO L124 PetriNetUnfolderBase]: 30584/105699 cut-off events. [2025-02-06 09:01:03,334 INFO L125 PetriNetUnfolderBase]: For 10334/10334 co-relation queries the response was YES. [2025-02-06 09:01:04,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150606 conditions, 105699 events. 30584/105699 cut-off events. For 10334/10334 co-relation queries the response was YES. Maximal size of possible extension queue 3053. Compared 1564134 event pairs, 2775 based on Foata normal form. 30580/126819 useless extension candidates. Maximal degree in co-relation 112739. Up to 13444 conditions per place. [2025-02-06 09:01:04,574 INFO L140 encePairwiseOnDemand]: 253/314 looper letters, 105 selfloop transitions, 48 changer transitions 0/390 dead transitions. [2025-02-06 09:01:04,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 390 transitions, 1198 flow [2025-02-06 09:01:04,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:01:04,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:01:04,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1786 transitions. [2025-02-06 09:01:04,579 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9479830148619958 [2025-02-06 09:01:04,579 INFO L175 Difference]: Start difference. First operand has 299 places, 314 transitions, 656 flow. Second operand 6 states and 1786 transitions. [2025-02-06 09:01:04,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 390 transitions, 1198 flow [2025-02-06 09:01:04,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 390 transitions, 1168 flow, removed 15 selfloop flow, removed 0 redundant places. [2025-02-06 09:01:04,595 INFO L231 Difference]: Finished difference. Result has 281 places, 318 transitions, 906 flow [2025-02-06 09:01:04,596 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=314, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=906, PETRI_PLACES=281, PETRI_TRANSITIONS=318} [2025-02-06 09:01:04,597 INFO L279 CegarLoopForPetriNet]: 299 programPoint places, -18 predicate places. [2025-02-06 09:01:04,597 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 318 transitions, 906 flow [2025-02-06 09:01:04,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.16666666666666) internal successors, (1471), 6 states have internal predecessors, (1471), 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) [2025-02-06 09:01:04,598 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:04,598 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:01:04,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 09:01:04,598 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-02-06 09:01:04,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:04,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1671298212, now seen corresponding path program 1 times [2025-02-06 09:01:04,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:04,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724755063] [2025-02-06 09:01:04,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:04,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:04,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 09:01:04,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 09:01:04,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:04,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:01:04,616 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:01:04,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 09:01:04,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 09:01:04,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:04,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:01:04,633 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:01:04,636 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:01:04,636 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2025-02-06 09:01:04,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2025-02-06 09:01:04,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2025-02-06 09:01:04,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2025-02-06 09:01:04,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2025-02-06 09:01:04,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2025-02-06 09:01:04,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2025-02-06 09:01:04,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2025-02-06 09:01:04,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2025-02-06 09:01:04,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2025-02-06 09:01:04,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2025-02-06 09:01:04,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2025-02-06 09:01:04,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2025-02-06 09:01:04,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2025-02-06 09:01:04,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2025-02-06 09:01:04,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2025-02-06 09:01:04,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2025-02-06 09:01:04,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2025-02-06 09:01:04,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2025-02-06 09:01:04,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2025-02-06 09:01:04,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2025-02-06 09:01:04,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2025-02-06 09:01:04,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2025-02-06 09:01:04,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2025-02-06 09:01:04,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2025-02-06 09:01:04,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2025-02-06 09:01:04,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2025-02-06 09:01:04,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2025-02-06 09:01:04,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2025-02-06 09:01:04,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2025-02-06 09:01:04,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2025-02-06 09:01:04,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 09:01:04,640 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 09:01:04,641 WARN L246 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:01:04,641 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2025-02-06 09:01:04,752 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:01:04,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 368 places, 387 transitions, 814 flow [2025-02-06 09:01:04,818 INFO L124 PetriNetUnfolderBase]: 30/430 cut-off events. [2025-02-06 09:01:04,818 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2025-02-06 09:01:04,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 430 events. 30/430 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1835 event pairs, 0 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 369. Up to 6 conditions per place. [2025-02-06 09:01:04,825 INFO L82 GeneralOperation]: Start removeDead. Operand has 368 places, 387 transitions, 814 flow [2025-02-06 09:01:04,830 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 368 places, 387 transitions, 814 flow [2025-02-06 09:01:04,831 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:01:04,832 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;@5117d195, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:01:04,833 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2025-02-06 09:01:04,837 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:01:04,837 INFO L124 PetriNetUnfolderBase]: 0/73 cut-off events. [2025-02-06 09:01:04,837 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 09:01:04,837 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:04,837 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] [2025-02-06 09:01:04,837 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err5ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2025-02-06 09:01:04,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:04,838 INFO L85 PathProgramCache]: Analyzing trace with hash -941072086, now seen corresponding path program 1 times [2025-02-06 09:01:04,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:04,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477177053] [2025-02-06 09:01:04,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:04,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:04,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 09:01:04,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 09:01:04,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:04,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:01:05,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:01:05,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:01:05,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477177053] [2025-02-06 09:01:05,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477177053] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:01:05,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:01:05,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:01:05,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297022322] [2025-02-06 09:01:05,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:01:05,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:01:05,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:01:05,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:01:05,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:01:05,360 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 387 [2025-02-06 09:01:05,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 387 transitions, 814 flow. Second operand has 6 states, 6 states have (on average 301.1666666666667) internal successors, (1807), 6 states have internal predecessors, (1807), 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) [2025-02-06 09:01:05,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:01:05,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 387 [2025-02-06 09:01:05,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand