./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version f8ab0bd5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:22:07,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:22:07,152 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:22:07,157 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:22:07,157 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:22:07,183 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:22:07,183 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:22:07,184 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:22:07,184 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:22:07,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:22:07,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:22:07,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:22:07,185 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:22:07,186 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:22:07,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:22:07,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:22:07,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:22:07,186 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:22:07,186 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:22:07,186 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:22:07,186 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:22:07,186 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:22:07,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:22:07,186 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:22:07,186 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:22:07,186 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:22:07,186 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:22:07,186 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/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 -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 [2025-03-13 22:22:07,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:22:07,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:22:07,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:22:07,434 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:22:07,434 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:22:07,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2025-03-13 22:22:08,539 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb734925a/f2b02aab2b8d43d6ad1a68ea0ed56d7a/FLAG39d42f0cf [2025-03-13 22:22:08,814 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:22:08,815 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2025-03-13 22:22:08,828 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb734925a/f2b02aab2b8d43d6ad1a68ea0ed56d7a/FLAG39d42f0cf [2025-03-13 22:22:09,109 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb734925a/f2b02aab2b8d43d6ad1a68ea0ed56d7a [2025-03-13 22:22:09,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:22:09,112 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:22:09,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:22:09,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:22:09,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:22:09,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:22:09" (1/1) ... [2025-03-13 22:22:09,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230811b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:22:09, skipping insertion in model container [2025-03-13 22:22:09,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:22:09" (1/1) ... [2025-03-13 22:22:09,148 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:22:09,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:22:09,437 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:22:09,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:22:09,493 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:22:09,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:22:09 WrapperNode [2025-03-13 22:22:09,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:22:09,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:22:09,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:22:09,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:22:09,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:22:09" (1/1) ... [2025-03-13 22:22:09,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:22:09" (1/1) ... [2025-03-13 22:22:09,522 INFO L138 Inliner]: procedures = 165, calls = 47, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 198 [2025-03-13 22:22:09,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:22:09,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:22:09,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:22:09,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:22:09,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:22:09" (1/1) ... [2025-03-13 22:22:09,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:22:09" (1/1) ... [2025-03-13 22:22:09,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:22:09" (1/1) ... [2025-03-13 22:22:09,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:22:09" (1/1) ... [2025-03-13 22:22:09,537 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:22:09" (1/1) ... [2025-03-13 22:22:09,538 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:22:09" (1/1) ... [2025-03-13 22:22:09,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:22:09" (1/1) ... [2025-03-13 22:22:09,540 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:22:09" (1/1) ... [2025-03-13 22:22:09,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:22:09,542 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:22:09,542 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:22:09,542 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:22:09,543 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:22:09" (1/1) ... [2025-03-13 22:22:09,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:22:09,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:22:09,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-13 22:22:09,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-13 22:22:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-13 22:22:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:22:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-13 22:22:09,595 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-13 22:22:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:22:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-13 22:22:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:22:09,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:22:09,596 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 22:22:09,688 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:22:09,690 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:22:10,001 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:22:10,002 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:22:10,002 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:22:10,048 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:22:10,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:22:10 BoogieIcfgContainer [2025-03-13 22:22:10,050 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:22:10,052 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:22:10,052 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:22:10,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:22:10,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:22:09" (1/3) ... [2025-03-13 22:22:10,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@355f9ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:22:10, skipping insertion in model container [2025-03-13 22:22:10,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:22:09" (2/3) ... [2025-03-13 22:22:10,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@355f9ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:22:10, skipping insertion in model container [2025-03-13 22:22:10,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:22:10" (3/3) ... [2025-03-13 22:22:10,058 INFO L128 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2025-03-13 22:22:10,070 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:22:10,072 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i that has 2 procedures, 226 locations, 1 initial locations, 0 loop locations, and 9 error locations. [2025-03-13 22:22:10,072 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:22:10,142 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 22:22:10,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 237 transitions, 478 flow [2025-03-13 22:22:10,257 INFO L124 PetriNetUnfolderBase]: 11/240 cut-off events. [2025-03-13 22:22:10,262 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:22:10,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 240 events. 11/240 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 281 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 193. Up to 2 conditions per place. [2025-03-13 22:22:10,270 INFO L82 GeneralOperation]: Start removeDead. Operand has 229 places, 237 transitions, 478 flow [2025-03-13 22:22:10,275 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 235 transitions, 473 flow [2025-03-13 22:22:10,280 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:22:10,289 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;@785c66cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:22:10,289 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-03-13 22:22:10,300 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:22:10,300 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2025-03-13 22:22:10,301 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:22:10,301 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:22:10,301 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] [2025-03-13 22:22:10,302 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:22:10,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:22:10,306 INFO L85 PathProgramCache]: Analyzing trace with hash 95577846, now seen corresponding path program 1 times [2025-03-13 22:22:10,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:22:10,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374544703] [2025-03-13 22:22:10,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:22:10,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:22:10,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-13 22:22:10,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-13 22:22:10,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:22:10,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:22:10,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:22:10,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:22:10,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374544703] [2025-03-13 22:22:10,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374544703] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:22:10,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:22:10,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:22:10,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801424288] [2025-03-13 22:22:10,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:22:10,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:22:10,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:22:10,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:22:10,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:22:10,567 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 237 [2025-03-13 22:22:10,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 235 transitions, 473 flow. Second operand has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 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) [2025-03-13 22:22:10,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:22:10,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 237 [2025-03-13 22:22:10,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:22:10,801 INFO L124 PetriNetUnfolderBase]: 122/1316 cut-off events. [2025-03-13 22:22:10,802 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:22:10,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1590 conditions, 1316 events. 122/1316 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7828 event pairs, 87 based on Foata normal form. 112/1278 useless extension candidates. Maximal degree in co-relation 1541. Up to 236 conditions per place. [2025-03-13 22:22:10,812 INFO L140 encePairwiseOnDemand]: 221/237 looper letters, 30 selfloop transitions, 5 changer transitions 0/229 dead transitions. [2025-03-13 22:22:10,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 229 transitions, 531 flow [2025-03-13 22:22:10,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:22:10,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:22:10,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 651 transitions. [2025-03-13 22:22:10,828 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9156118143459916 [2025-03-13 22:22:10,831 INFO L175 Difference]: Start difference. First operand has 228 places, 235 transitions, 473 flow. Second operand 3 states and 651 transitions. [2025-03-13 22:22:10,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 229 transitions, 531 flow [2025-03-13 22:22:10,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 229 transitions, 530 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 22:22:10,841 INFO L231 Difference]: Finished difference. Result has 225 places, 223 transitions, 478 flow [2025-03-13 22:22:10,843 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=225, PETRI_TRANSITIONS=223} [2025-03-13 22:22:10,846 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -3 predicate places. [2025-03-13 22:22:10,847 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 223 transitions, 478 flow [2025-03-13 22:22:10,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 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) [2025-03-13 22:22:10,848 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:22:10,848 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] [2025-03-13 22:22:10,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 22:22:10,849 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:22:10,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:22:10,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2088200025, now seen corresponding path program 1 times [2025-03-13 22:22:10,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:22:10,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452408028] [2025-03-13 22:22:10,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:22:10,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:22:10,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-03-13 22:22:10,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-03-13 22:22:10,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:22:10,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:22:10,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:22:10,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:22:10,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452408028] [2025-03-13 22:22:10,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452408028] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:22:10,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:22:10,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:22:10,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557070475] [2025-03-13 22:22:10,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:22:10,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:22:10,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:22:10,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:22:10,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:22:10,959 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 237 [2025-03-13 22:22:10,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 223 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 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) [2025-03-13 22:22:10,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:22:10,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 237 [2025-03-13 22:22:10,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:22:11,114 INFO L124 PetriNetUnfolderBase]: 113/1198 cut-off events. [2025-03-13 22:22:11,115 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-03-13 22:22:11,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1538 conditions, 1198 events. 113/1198 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7005 event pairs, 84 based on Foata normal form. 0/1093 useless extension candidates. Maximal degree in co-relation 1488. Up to 221 conditions per place. [2025-03-13 22:22:11,122 INFO L140 encePairwiseOnDemand]: 232/237 looper letters, 28 selfloop transitions, 4 changer transitions 0/232 dead transitions. [2025-03-13 22:22:11,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 232 transitions, 560 flow [2025-03-13 22:22:11,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:22:11,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:22:11,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 636 transitions. [2025-03-13 22:22:11,126 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8945147679324894 [2025-03-13 22:22:11,126 INFO L175 Difference]: Start difference. First operand has 225 places, 223 transitions, 478 flow. Second operand 3 states and 636 transitions. [2025-03-13 22:22:11,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 232 transitions, 560 flow [2025-03-13 22:22:11,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 232 transitions, 550 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:22:11,131 INFO L231 Difference]: Finished difference. Result has 227 places, 226 transitions, 498 flow [2025-03-13 22:22:11,133 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=227, PETRI_TRANSITIONS=226} [2025-03-13 22:22:11,133 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -1 predicate places. [2025-03-13 22:22:11,133 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 226 transitions, 498 flow [2025-03-13 22:22:11,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 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) [2025-03-13 22:22:11,134 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:22:11,134 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] [2025-03-13 22:22:11,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 22:22:11,135 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:22:11,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:22:11,136 INFO L85 PathProgramCache]: Analyzing trace with hash 367565723, now seen corresponding path program 1 times [2025-03-13 22:22:11,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:22:11,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999332957] [2025-03-13 22:22:11,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:22:11,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:22:11,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-13 22:22:11,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-13 22:22:11,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:22:11,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:22:11,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:22:11,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:22:11,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999332957] [2025-03-13 22:22:11,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999332957] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:22:11,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:22:11,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:22:11,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911743723] [2025-03-13 22:22:11,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:22:11,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:22:11,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:22:11,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:22:11,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:22:11,211 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 237 [2025-03-13 22:22:11,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 226 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 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) [2025-03-13 22:22:11,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:22:11,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 237 [2025-03-13 22:22:11,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:22:11,430 INFO L124 PetriNetUnfolderBase]: 122/2008 cut-off events. [2025-03-13 22:22:11,431 INFO L125 PetriNetUnfolderBase]: For 46/49 co-relation queries the response was YES. [2025-03-13 22:22:11,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2431 conditions, 2008 events. 122/2008 cut-off events. For 46/49 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 14304 event pairs, 26 based on Foata normal form. 0/1814 useless extension candidates. Maximal degree in co-relation 2381. Up to 146 conditions per place. [2025-03-13 22:22:11,441 INFO L140 encePairwiseOnDemand]: 233/237 looper letters, 30 selfloop transitions, 4 changer transitions 0/240 dead transitions. [2025-03-13 22:22:11,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 240 transitions, 598 flow [2025-03-13 22:22:11,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:22:11,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:22:11,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 649 transitions. [2025-03-13 22:22:11,443 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9127988748241913 [2025-03-13 22:22:11,443 INFO L175 Difference]: Start difference. First operand has 227 places, 226 transitions, 498 flow. Second operand 3 states and 649 transitions. [2025-03-13 22:22:11,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 240 transitions, 598 flow [2025-03-13 22:22:11,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 240 transitions, 588 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:22:11,450 INFO L231 Difference]: Finished difference. Result has 229 places, 228 transitions, 518 flow [2025-03-13 22:22:11,451 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=518, PETRI_PLACES=229, PETRI_TRANSITIONS=228} [2025-03-13 22:22:11,452 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, 1 predicate places. [2025-03-13 22:22:11,452 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 228 transitions, 518 flow [2025-03-13 22:22:11,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 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) [2025-03-13 22:22:11,453 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:22:11,453 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] [2025-03-13 22:22:11,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 22:22:11,453 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:22:11,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:22:11,454 INFO L85 PathProgramCache]: Analyzing trace with hash -2015629549, now seen corresponding path program 1 times [2025-03-13 22:22:11,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:22:11,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219263711] [2025-03-13 22:22:11,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:22:11,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:22:11,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-13 22:22:11,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-13 22:22:11,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:22:11,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:22:11,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:22:11,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:22:11,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219263711] [2025-03-13 22:22:11,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219263711] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:22:11,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:22:11,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:22:11,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677517140] [2025-03-13 22:22:11,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:22:11,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:22:11,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:22:11,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:22:11,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:22:11,530 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 237 [2025-03-13 22:22:11,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 228 transitions, 518 flow. Second operand has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 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) [2025-03-13 22:22:11,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:22:11,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 237 [2025-03-13 22:22:11,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:22:11,800 INFO L124 PetriNetUnfolderBase]: 240/3005 cut-off events. [2025-03-13 22:22:11,801 INFO L125 PetriNetUnfolderBase]: For 25/28 co-relation queries the response was YES. [2025-03-13 22:22:11,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3692 conditions, 3005 events. 240/3005 cut-off events. For 25/28 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 24985 event pairs, 34 based on Foata normal form. 0/2707 useless extension candidates. Maximal degree in co-relation 3641. Up to 299 conditions per place. [2025-03-13 22:22:11,809 INFO L140 encePairwiseOnDemand]: 232/237 looper letters, 31 selfloop transitions, 4 changer transitions 0/243 dead transitions. [2025-03-13 22:22:11,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 243 transitions, 618 flow [2025-03-13 22:22:11,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:22:11,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:22:11,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 648 transitions. [2025-03-13 22:22:11,811 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9113924050632911 [2025-03-13 22:22:11,811 INFO L175 Difference]: Start difference. First operand has 229 places, 228 transitions, 518 flow. Second operand 3 states and 648 transitions. [2025-03-13 22:22:11,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 243 transitions, 618 flow [2025-03-13 22:22:11,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 243 transitions, 610 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:22:11,816 INFO L231 Difference]: Finished difference. Result has 231 places, 231 transitions, 540 flow [2025-03-13 22:22:11,816 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=540, PETRI_PLACES=231, PETRI_TRANSITIONS=231} [2025-03-13 22:22:11,818 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, 3 predicate places. [2025-03-13 22:22:11,818 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 231 transitions, 540 flow [2025-03-13 22:22:11,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 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) [2025-03-13 22:22:11,818 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:22:11,818 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, 1, 1, 1, 1, 1] [2025-03-13 22:22:11,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-13 22:22:11,819 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:22:11,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:22:11,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1449171681, now seen corresponding path program 1 times [2025-03-13 22:22:11,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:22:11,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397173220] [2025-03-13 22:22:11,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:22:11,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:22:11,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-13 22:22:11,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-13 22:22:11,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:22:11,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:22:12,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:22:12,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:22:12,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397173220] [2025-03-13 22:22:12,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397173220] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:22:12,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:22:12,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-13 22:22:12,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872331962] [2025-03-13 22:22:12,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:22:12,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:22:12,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:22:12,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:22:12,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:22:12,158 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 237 [2025-03-13 22:22:12,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 231 transitions, 540 flow. Second operand has 6 states, 6 states have (on average 208.16666666666666) internal successors, (1249), 6 states have internal predecessors, (1249), 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) [2025-03-13 22:22:12,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:22:12,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 237 [2025-03-13 22:22:12,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:22:12,309 INFO L124 PetriNetUnfolderBase]: 40/1040 cut-off events. [2025-03-13 22:22:12,310 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2025-03-13 22:22:12,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1272 conditions, 1040 events. 40/1040 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 5010 event pairs, 23 based on Foata normal form. 8/973 useless extension candidates. Maximal degree in co-relation 1218. Up to 82 conditions per place. [2025-03-13 22:22:12,314 INFO L140 encePairwiseOnDemand]: 227/237 looper letters, 17 selfloop transitions, 10 changer transitions 1/229 dead transitions. [2025-03-13 22:22:12,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 229 transitions, 562 flow [2025-03-13 22:22:12,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-13 22:22:12,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-13 22:22:12,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1066 transitions. [2025-03-13 22:22:12,317 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8995780590717299 [2025-03-13 22:22:12,318 INFO L175 Difference]: Start difference. First operand has 231 places, 231 transitions, 540 flow. Second operand 5 states and 1066 transitions. [2025-03-13 22:22:12,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 229 transitions, 562 flow [2025-03-13 22:22:12,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 229 transitions, 532 flow, removed 7 selfloop flow, removed 6 redundant places. [2025-03-13 22:22:12,324 INFO L231 Difference]: Finished difference. Result has 226 places, 222 transitions, 498 flow [2025-03-13 22:22:12,324 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=498, PETRI_PLACES=226, PETRI_TRANSITIONS=222} [2025-03-13 22:22:12,326 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -2 predicate places. [2025-03-13 22:22:12,326 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 222 transitions, 498 flow [2025-03-13 22:22:12,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 208.16666666666666) internal successors, (1249), 6 states have internal predecessors, (1249), 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) [2025-03-13 22:22:12,328 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:22:12,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:22:12,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-13 22:22:12,329 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:22:12,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:22:12,329 INFO L85 PathProgramCache]: Analyzing trace with hash 188639647, now seen corresponding path program 1 times [2025-03-13 22:22:12,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:22:12,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433888734] [2025-03-13 22:22:12,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:22:12,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:22:12,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-13 22:22:12,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-13 22:22:12,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:22:12,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:22:12,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:22:12,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:22:12,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433888734] [2025-03-13 22:22:12,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433888734] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:22:12,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:22:12,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:22:12,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391546065] [2025-03-13 22:22:12,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:22:12,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:22:12,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:22:12,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:22:12,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:22:12,391 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 237 [2025-03-13 22:22:12,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 222 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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) [2025-03-13 22:22:12,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:22:12,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 237 [2025-03-13 22:22:12,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:22:12,511 INFO L124 PetriNetUnfolderBase]: 66/1216 cut-off events. [2025-03-13 22:22:12,512 INFO L125 PetriNetUnfolderBase]: For 104/106 co-relation queries the response was YES. [2025-03-13 22:22:12,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1572 conditions, 1216 events. 66/1216 cut-off events. For 104/106 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 6827 event pairs, 59 based on Foata normal form. 0/1122 useless extension candidates. Maximal degree in co-relation 1518. Up to 189 conditions per place. [2025-03-13 22:22:12,517 INFO L140 encePairwiseOnDemand]: 234/237 looper letters, 28 selfloop transitions, 3 changer transitions 0/223 dead transitions. [2025-03-13 22:22:12,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 223 transitions, 565 flow [2025-03-13 22:22:12,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:22:12,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:22:12,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 626 transitions. [2025-03-13 22:22:12,519 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8804500703234881 [2025-03-13 22:22:12,520 INFO L175 Difference]: Start difference. First operand has 226 places, 222 transitions, 498 flow. Second operand 3 states and 626 transitions. [2025-03-13 22:22:12,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 223 transitions, 565 flow [2025-03-13 22:22:12,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 223 transitions, 562 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:22:12,524 INFO L231 Difference]: Finished difference. Result has 225 places, 221 transitions, 499 flow [2025-03-13 22:22:12,525 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=499, PETRI_PLACES=225, PETRI_TRANSITIONS=221} [2025-03-13 22:22:12,526 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -3 predicate places. [2025-03-13 22:22:12,526 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 221 transitions, 499 flow [2025-03-13 22:22:12,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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) [2025-03-13 22:22:12,527 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:22:12,527 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:22:12,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-13 22:22:12,527 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:22:12,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:22:12,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1021020146, now seen corresponding path program 1 times [2025-03-13 22:22:12,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:22:12,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449544447] [2025-03-13 22:22:12,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:22:12,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:22:12,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-13 22:22:12,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-13 22:22:12,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:22:12,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:22:12,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:22:12,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:22:12,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449544447] [2025-03-13 22:22:12,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449544447] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:22:12,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:22:12,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:22:12,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379599924] [2025-03-13 22:22:12,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:22:12,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:22:12,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:22:12,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:22:12,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:22:12,616 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 237 [2025-03-13 22:22:12,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 221 transitions, 499 flow. Second operand has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 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) [2025-03-13 22:22:12,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:22:12,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 237 [2025-03-13 22:22:12,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:22:12,737 INFO L124 PetriNetUnfolderBase]: 69/1218 cut-off events. [2025-03-13 22:22:12,737 INFO L125 PetriNetUnfolderBase]: For 114/118 co-relation queries the response was YES. [2025-03-13 22:22:12,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1600 conditions, 1218 events. 69/1218 cut-off events. For 114/118 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 6821 event pairs, 60 based on Foata normal form. 0/1132 useless extension candidates. Maximal degree in co-relation 1547. Up to 193 conditions per place. [2025-03-13 22:22:12,740 INFO L140 encePairwiseOnDemand]: 234/237 looper letters, 28 selfloop transitions, 3 changer transitions 0/222 dead transitions. [2025-03-13 22:22:12,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 222 transitions, 566 flow [2025-03-13 22:22:12,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:22:12,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:22:12,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 626 transitions. [2025-03-13 22:22:12,742 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8804500703234881 [2025-03-13 22:22:12,742 INFO L175 Difference]: Start difference. First operand has 225 places, 221 transitions, 499 flow. Second operand 3 states and 626 transitions. [2025-03-13 22:22:12,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 222 transitions, 566 flow [2025-03-13 22:22:12,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 222 transitions, 560 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:22:12,744 INFO L231 Difference]: Finished difference. Result has 224 places, 220 transitions, 497 flow [2025-03-13 22:22:12,745 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=497, PETRI_PLACES=224, PETRI_TRANSITIONS=220} [2025-03-13 22:22:12,747 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -4 predicate places. [2025-03-13 22:22:12,747 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 220 transitions, 497 flow [2025-03-13 22:22:12,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 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) [2025-03-13 22:22:12,748 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:22:12,748 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:22:12,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-13 22:22:12,748 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:22:12,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:22:12,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2144097140, now seen corresponding path program 1 times [2025-03-13 22:22:12,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:22:12,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533193738] [2025-03-13 22:22:12,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:22:12,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:22:12,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-13 22:22:12,768 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-13 22:22:12,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:22:12,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:22:12,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:22:12,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:22:12,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533193738] [2025-03-13 22:22:12,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533193738] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:22:12,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:22:12,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:22:12,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813002362] [2025-03-13 22:22:12,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:22:12,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:22:12,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:22:12,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:22:12,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:22:12,810 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 237 [2025-03-13 22:22:12,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 220 transitions, 497 flow. Second operand has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 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) [2025-03-13 22:22:12,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:22:12,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 237 [2025-03-13 22:22:12,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:22:12,912 INFO L124 PetriNetUnfolderBase]: 112/1285 cut-off events. [2025-03-13 22:22:12,913 INFO L125 PetriNetUnfolderBase]: For 116/123 co-relation queries the response was YES. [2025-03-13 22:22:12,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1770 conditions, 1285 events. 112/1285 cut-off events. For 116/123 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 7216 event pairs, 82 based on Foata normal form. 0/1182 useless extension candidates. Maximal degree in co-relation 1717. Up to 254 conditions per place. [2025-03-13 22:22:12,916 INFO L140 encePairwiseOnDemand]: 231/237 looper letters, 29 selfloop transitions, 5 changer transitions 9/230 dead transitions. [2025-03-13 22:22:12,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 230 transitions, 603 flow [2025-03-13 22:22:12,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:22:12,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:22:12,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 633 transitions. [2025-03-13 22:22:12,918 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.890295358649789 [2025-03-13 22:22:12,919 INFO L175 Difference]: Start difference. First operand has 224 places, 220 transitions, 497 flow. Second operand 3 states and 633 transitions. [2025-03-13 22:22:12,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 230 transitions, 603 flow [2025-03-13 22:22:12,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 230 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:22:12,922 INFO L231 Difference]: Finished difference. Result has 226 places, 217 transitions, 502 flow [2025-03-13 22:22:12,922 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=226, PETRI_TRANSITIONS=217} [2025-03-13 22:22:12,924 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -2 predicate places. [2025-03-13 22:22:12,924 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 217 transitions, 502 flow [2025-03-13 22:22:12,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 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) [2025-03-13 22:22:12,925 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:22:12,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:22:12,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-13 22:22:12,925 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:22:12,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:22:12,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1692200893, now seen corresponding path program 1 times [2025-03-13 22:22:12,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:22:12,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089339348] [2025-03-13 22:22:12,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:22:12,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:22:12,937 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-13 22:22:12,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-13 22:22:12,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:22:12,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:22:12,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:22:12,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:22:12,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089339348] [2025-03-13 22:22:12,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089339348] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:22:12,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:22:12,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:22:12,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487463799] [2025-03-13 22:22:12,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:22:12,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:22:12,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:22:12,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:22:12,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:22:12,997 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 237 [2025-03-13 22:22:12,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 217 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 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) [2025-03-13 22:22:12,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:22:12,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 237 [2025-03-13 22:22:12,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:22:13,084 INFO L124 PetriNetUnfolderBase]: 73/1011 cut-off events. [2025-03-13 22:22:13,085 INFO L125 PetriNetUnfolderBase]: For 111/114 co-relation queries the response was YES. [2025-03-13 22:22:13,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1419 conditions, 1011 events. 73/1011 cut-off events. For 111/114 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4905 event pairs, 52 based on Foata normal form. 0/943 useless extension candidates. Maximal degree in co-relation 1366. Up to 172 conditions per place. [2025-03-13 22:22:13,088 INFO L140 encePairwiseOnDemand]: 232/237 looper letters, 28 selfloop transitions, 5 changer transitions 0/224 dead transitions. [2025-03-13 22:22:13,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 224 transitions, 589 flow [2025-03-13 22:22:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:22:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:22:13,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 634 transitions. [2025-03-13 22:22:13,090 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8917018284106891 [2025-03-13 22:22:13,090 INFO L175 Difference]: Start difference. First operand has 226 places, 217 transitions, 502 flow. Second operand 3 states and 634 transitions. [2025-03-13 22:22:13,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 224 transitions, 589 flow [2025-03-13 22:22:13,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 224 transitions, 575 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-13 22:22:13,095 INFO L231 Difference]: Finished difference. Result has 228 places, 220 transitions, 526 flow [2025-03-13 22:22:13,095 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=526, PETRI_PLACES=228, PETRI_TRANSITIONS=220} [2025-03-13 22:22:13,096 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, 0 predicate places. [2025-03-13 22:22:13,096 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 220 transitions, 526 flow [2025-03-13 22:22:13,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 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) [2025-03-13 22:22:13,097 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:22:13,097 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:22:13,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-13 22:22:13,097 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:22:13,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:22:13,098 INFO L85 PathProgramCache]: Analyzing trace with hash -901093121, now seen corresponding path program 1 times [2025-03-13 22:22:13,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:22:13,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623833675] [2025-03-13 22:22:13,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:22:13,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:22:13,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-13 22:22:13,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-13 22:22:13,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:22:13,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:22:13,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:22:13,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:22:13,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623833675] [2025-03-13 22:22:13,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623833675] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:22:13,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:22:13,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:22:13,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411336338] [2025-03-13 22:22:13,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:22:13,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:22:13,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:22:13,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:22:13,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:22:13,155 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 237 [2025-03-13 22:22:13,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 220 transitions, 526 flow. Second operand has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 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) [2025-03-13 22:22:13,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:22:13,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 237 [2025-03-13 22:22:13,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:22:13,269 INFO L124 PetriNetUnfolderBase]: 63/1035 cut-off events. [2025-03-13 22:22:13,269 INFO L125 PetriNetUnfolderBase]: For 198/203 co-relation queries the response was YES. [2025-03-13 22:22:13,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1472 conditions, 1035 events. 63/1035 cut-off events. For 198/203 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5103 event pairs, 30 based on Foata normal form. 0/972 useless extension candidates. Maximal degree in co-relation 1418. Up to 110 conditions per place. [2025-03-13 22:22:13,272 INFO L140 encePairwiseOnDemand]: 232/237 looper letters, 24 selfloop transitions, 3 changer transitions 12/232 dead transitions. [2025-03-13 22:22:13,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 232 transitions, 644 flow [2025-03-13 22:22:13,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:22:13,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:22:13,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 642 transitions. [2025-03-13 22:22:13,274 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9029535864978903 [2025-03-13 22:22:13,274 INFO L175 Difference]: Start difference. First operand has 228 places, 220 transitions, 526 flow. Second operand 3 states and 642 transitions. [2025-03-13 22:22:13,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 232 transitions, 644 flow [2025-03-13 22:22:13,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 232 transitions, 634 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:22:13,276 INFO L231 Difference]: Finished difference. Result has 230 places, 218 transitions, 530 flow [2025-03-13 22:22:13,277 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=230, PETRI_TRANSITIONS=218} [2025-03-13 22:22:13,277 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, 2 predicate places. [2025-03-13 22:22:13,277 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 218 transitions, 530 flow [2025-03-13 22:22:13,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 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) [2025-03-13 22:22:13,278 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:22:13,278 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:22:13,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-13 22:22:13,278 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:22:13,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:22:13,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1620383298, now seen corresponding path program 1 times [2025-03-13 22:22:13,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:22:13,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897392490] [2025-03-13 22:22:13,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:22:13,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:22:13,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-03-13 22:22:13,301 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-03-13 22:22:13,303 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:22:13,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:22:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:22:13,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:22:13,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897392490] [2025-03-13 22:22:13,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897392490] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:22:13,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:22:13,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-13 22:22:13,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214748007] [2025-03-13 22:22:13,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:22:13,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-13 22:22:13,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:22:13,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-13 22:22:13,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-13 22:22:13,825 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 237 [2025-03-13 22:22:13,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 218 transitions, 530 flow. Second operand has 7 states, 7 states have (on average 208.14285714285714) internal successors, (1457), 7 states have internal predecessors, (1457), 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) [2025-03-13 22:22:13,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:22:13,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 237 [2025-03-13 22:22:13,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:22:13,911 INFO L124 PetriNetUnfolderBase]: 16/563 cut-off events. [2025-03-13 22:22:13,912 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2025-03-13 22:22:13,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 563 events. 16/563 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1649 event pairs, 2 based on Foata normal form. 6/540 useless extension candidates. Maximal degree in co-relation 681. Up to 45 conditions per place. [2025-03-13 22:22:13,913 INFO L140 encePairwiseOnDemand]: 231/237 looper letters, 0 selfloop transitions, 0 changer transitions 209/209 dead transitions. [2025-03-13 22:22:13,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 209 transitions, 543 flow [2025-03-13 22:22:13,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:22:13,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:22:13,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1261 transitions. [2025-03-13 22:22:13,916 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8867791842475387 [2025-03-13 22:22:13,917 INFO L175 Difference]: Start difference. First operand has 230 places, 218 transitions, 530 flow. Second operand 6 states and 1261 transitions. [2025-03-13 22:22:13,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 209 transitions, 543 flow [2025-03-13 22:22:13,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 209 transitions, 502 flow, removed 8 selfloop flow, removed 8 redundant places. [2025-03-13 22:22:13,919 INFO L231 Difference]: Finished difference. Result has 217 places, 0 transitions, 0 flow [2025-03-13 22:22:13,919 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=217, PETRI_TRANSITIONS=0} [2025-03-13 22:22:13,919 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -11 predicate places. [2025-03-13 22:22:13,919 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 0 transitions, 0 flow [2025-03-13 22:22:13,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 208.14285714285714) internal successors, (1457), 7 states have internal predecessors, (1457), 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) [2025-03-13 22:22:13,923 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2025-03-13 22:22:13,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2025-03-13 22:22:13,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2025-03-13 22:22:13,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2025-03-13 22:22:13,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2025-03-13 22:22:13,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2025-03-13 22:22:13,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2025-03-13 22:22:13,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2025-03-13 22:22:13,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2025-03-13 22:22:13,926 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2025-03-13 22:22:13,926 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2025-03-13 22:22:13,926 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2025-03-13 22:22:13,926 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2025-03-13 22:22:13,926 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2025-03-13 22:22:13,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-13 22:22:13,926 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:22:13,930 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-13 22:22:13,930 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-13 22:22:13,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.03 10:22:13 BasicIcfg [2025-03-13 22:22:13,935 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-13 22:22:13,935 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-13 22:22:13,935 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-13 22:22:13,935 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-13 22:22:13,936 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:22:10" (3/4) ... [2025-03-13 22:22:13,937 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-13 22:22:13,939 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-13 22:22:13,942 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-03-13 22:22:13,942 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-13 22:22:13,942 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-13 22:22:13,943 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-13 22:22:14,002 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-13 22:22:14,002 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-13 22:22:14,002 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-13 22:22:14,003 INFO L158 Benchmark]: Toolchain (without parser) took 4890.84ms. Allocated memory was 167.8MB in the beginning and 369.1MB in the end (delta: 201.3MB). Free memory was 123.1MB in the beginning and 142.0MB in the end (delta: -19.0MB). Peak memory consumption was 178.7MB. Max. memory is 16.1GB. [2025-03-13 22:22:14,003 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 117.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:22:14,003 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.60ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 102.8MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-13 22:22:14,003 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.20ms. Allocated memory is still 167.8MB. Free memory was 102.4MB in the beginning and 100.2MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 22:22:14,003 INFO L158 Benchmark]: Boogie Preprocessor took 18.81ms. Allocated memory is still 167.8MB. Free memory was 100.2MB in the beginning and 98.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:22:14,004 INFO L158 Benchmark]: IcfgBuilder took 507.53ms. Allocated memory is still 167.8MB. Free memory was 98.8MB in the beginning and 75.8MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-13 22:22:14,004 INFO L158 Benchmark]: TraceAbstraction took 3882.57ms. Allocated memory was 167.8MB in the beginning and 369.1MB in the end (delta: 201.3MB). Free memory was 75.0MB in the beginning and 146.1MB in the end (delta: -71.1MB). Peak memory consumption was 128.4MB. Max. memory is 16.1GB. [2025-03-13 22:22:14,004 INFO L158 Benchmark]: Witness Printer took 67.24ms. Allocated memory is still 369.1MB. Free memory was 146.1MB in the beginning and 142.0MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:22:14,005 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 117.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.60ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 102.8MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.20ms. Allocated memory is still 167.8MB. Free memory was 102.4MB in the beginning and 100.2MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.81ms. Allocated memory is still 167.8MB. Free memory was 100.2MB in the beginning and 98.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 507.53ms. Allocated memory is still 167.8MB. Free memory was 98.8MB in the beginning and 75.8MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3882.57ms. Allocated memory was 167.8MB in the beginning and 369.1MB in the end (delta: 201.3MB). Free memory was 75.0MB in the beginning and 146.1MB in the end (delta: -71.1MB). Peak memory consumption was 128.4MB. Max. memory is 16.1GB. * Witness Printer took 67.24ms. Allocated memory is still 369.1MB. Free memory was 146.1MB in the beginning and 142.0MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 738]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 739]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 716]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 717]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: 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 3 procedures, 332 locations, 14 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: 3.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 442 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 269 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 812 IncrementalHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 34 mSDtfsCounter, 812 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=540occurred in iteration=4, InterpolantAutomatonStates: 38, 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, 1.1s InterpolantComputationTime, 985 NumberOfCodeBlocks, 985 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 974 ConstructedInterpolants, 0 QuantifiedInterpolants, 2347 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-13 22:22:14,016 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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