./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 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/pthread-ext/04_incdec_cas-race.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 a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:24:15,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:24:15,920 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:24:15,924 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:24:15,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:24:15,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:24:15,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:24:15,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:24:15,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:24:15,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:24:15,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:24:15,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:24:15,940 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:24:15,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:24:15,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:24:15,940 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:24:15,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:24:15,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:24:15,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:24:15,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:24:15,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:24:15,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:24:15,940 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:24:15,940 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:24:15,940 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:24:15,940 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:24:15,940 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:24:15,941 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:24:15,941 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:24:15,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:24:15,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:24:15,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:24:15,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:24:15,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:24:15,941 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:24:15,941 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:24:15,941 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:24:15,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:24:15,941 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:24:15,941 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:24:15,941 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:24:15,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:24:15,941 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 -> a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b [2025-03-04 06:24:16,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:24:16,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:24:16,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:24:16,172 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:24:16,172 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:24:16,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i [2025-03-04 06:24:17,342 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/164e8c87b/5872d76437be463ebe0b4298575de22d/FLAG648a3f718 [2025-03-04 06:24:17,624 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:24:17,625 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i [2025-03-04 06:24:17,634 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/164e8c87b/5872d76437be463ebe0b4298575de22d/FLAG648a3f718 [2025-03-04 06:24:17,938 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/164e8c87b/5872d76437be463ebe0b4298575de22d [2025-03-04 06:24:17,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:24:17,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:24:17,945 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:24:17,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:24:17,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:24:17,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:24:17" (1/1) ... [2025-03-04 06:24:17,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537612f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:24:17, skipping insertion in model container [2025-03-04 06:24:17,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:24:17" (1/1) ... [2025-03-04 06:24:17,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:24:18,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:24:18,204 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:24:18,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:24:18,280 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:24:18,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:24:18 WrapperNode [2025-03-04 06:24:18,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:24:18,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:24:18,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:24:18,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:24:18,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:24:18" (1/1) ... [2025-03-04 06:24:18,304 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:24:18" (1/1) ... [2025-03-04 06:24:18,338 INFO L138 Inliner]: procedures = 172, calls = 42, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 261 [2025-03-04 06:24:18,339 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:24:18,339 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:24:18,340 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:24:18,340 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:24:18,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:24:18" (1/1) ... [2025-03-04 06:24:18,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:24:18" (1/1) ... [2025-03-04 06:24:18,351 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:24:18" (1/1) ... [2025-03-04 06:24:18,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:24:18" (1/1) ... [2025-03-04 06:24:18,372 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:24:18" (1/1) ... [2025-03-04 06:24:18,376 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:24:18" (1/1) ... [2025-03-04 06:24:18,377 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:24:18" (1/1) ... [2025-03-04 06:24:18,378 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:24:18" (1/1) ... [2025-03-04 06:24:18,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:24:18,391 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:24:18,391 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:24:18,391 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:24:18,392 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:24:18" (1/1) ... [2025-03-04 06:24:18,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:24:18,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:24:18,421 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) [2025-03-04 06:24:18,427 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 [2025-03-04 06:24:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 06:24:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-04 06:24:18,446 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-04 06:24:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 06:24:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:24:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 06:24:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 06:24:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:24:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:24:18,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:24:18,447 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 06:24:18,539 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:24:18,541 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:24:18,907 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L709: havoc inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset; [2025-03-04 06:24:18,908 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L709-1: SUMMARY for call ULTIMATE.dealloc(inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset); srcloc: null [2025-03-04 06:24:18,908 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L727: havoc dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset; [2025-03-04 06:24:18,908 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L727-1: SUMMARY for call ULTIMATE.dealloc(dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset); srcloc: null [2025-03-04 06:24:18,929 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:24:18,929 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:24:19,201 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:24:19,201 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:24:19,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:24:19 BoogieIcfgContainer [2025-03-04 06:24:19,202 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:24:19,203 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:24:19,203 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:24:19,209 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:24:19,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:24:17" (1/3) ... [2025-03-04 06:24:19,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fef0116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:24:19, skipping insertion in model container [2025-03-04 06:24:19,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:24:18" (2/3) ... [2025-03-04 06:24:19,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fef0116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:24:19, skipping insertion in model container [2025-03-04 06:24:19,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:24:19" (3/3) ... [2025-03-04 06:24:19,211 INFO L128 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas-race.i [2025-03-04 06:24:19,223 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:24:19,225 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04_incdec_cas-race.i that has 2 procedures, 125 locations, 1 initial locations, 3 loop locations, and 18 error locations. [2025-03-04 06:24:19,227 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:24:19,324 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:24:19,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 134 transitions, 272 flow [2025-03-04 06:24:19,416 INFO L124 PetriNetUnfolderBase]: 9/141 cut-off events. [2025-03-04 06:24:19,419 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:24:19,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 141 events. 9/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 330 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 114. Up to 2 conditions per place. [2025-03-04 06:24:19,427 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 134 transitions, 272 flow [2025-03-04 06:24:19,430 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 134 transitions, 272 flow [2025-03-04 06:24:19,435 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:24:19,448 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;@34b3c690, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:24:19,449 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2025-03-04 06:24:19,458 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:24:19,458 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2025-03-04 06:24:19,458 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:24:19,458 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:24:19,459 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:24:19,460 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2025-03-04 06:24:19,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:24:19,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1831452296, now seen corresponding path program 1 times [2025-03-04 06:24:19,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:24:19,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855059213] [2025-03-04 06:24:19,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:24:19,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:24:19,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 06:24:19,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 06:24:19,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:24:19,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:24:19,554 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 06:24:19,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 06:24:19,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 06:24:19,571 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:24:19,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:24:19,594 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 06:24:19,596 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 06:24:19,598 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2025-03-04 06:24:19,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2025-03-04 06:24:19,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2025-03-04 06:24:19,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2025-03-04 06:24:19,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2025-03-04 06:24:19,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2025-03-04 06:24:19,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2025-03-04 06:24:19,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2025-03-04 06:24:19,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2025-03-04 06:24:19,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2025-03-04 06:24:19,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2025-03-04 06:24:19,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2025-03-04 06:24:19,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2025-03-04 06:24:19,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2025-03-04 06:24:19,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2025-03-04 06:24:19,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2025-03-04 06:24:19,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2025-03-04 06:24:19,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2025-03-04 06:24:19,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:24:19,604 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-04 06:24:19,610 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-04 06:24:19,610 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-04 06:24:19,741 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:24:19,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 227 places, 240 transitions, 490 flow [2025-03-04 06:24:19,799 INFO L124 PetriNetUnfolderBase]: 18/256 cut-off events. [2025-03-04 06:24:19,799 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-04 06:24:19,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 256 events. 18/256 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 993 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 219. Up to 3 conditions per place. [2025-03-04 06:24:19,804 INFO L82 GeneralOperation]: Start removeDead. Operand has 227 places, 240 transitions, 490 flow [2025-03-04 06:24:19,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 227 places, 240 transitions, 490 flow [2025-03-04 06:24:19,812 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:24:19,812 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;@34b3c690, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:24:19,812 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2025-03-04 06:24:19,819 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:24:19,819 INFO L124 PetriNetUnfolderBase]: 0/66 cut-off events. [2025-03-04 06:24:19,819 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-04 06:24:19,820 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:24:19,820 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:24:19,820 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-04 06:24:19,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:24:19,821 INFO L85 PathProgramCache]: Analyzing trace with hash -740908165, now seen corresponding path program 1 times [2025-03-04 06:24:19,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:24:19,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83810896] [2025-03-04 06:24:19,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:24:19,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:24:19,837 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 06:24:19,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 06:24:19,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:24:19,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:24:19,849 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 06:24:19,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 06:24:19,858 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 06:24:19,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:24:19,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:24:19,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 06:24:19,867 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 06:24:19,867 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 55 remaining) [2025-03-04 06:24:19,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2025-03-04 06:24:19,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2025-03-04 06:24:19,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2025-03-04 06:24:19,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2025-03-04 06:24:19,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2025-03-04 06:24:19,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (48 of 55 remaining) [2025-03-04 06:24:19,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2025-03-04 06:24:19,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2025-03-04 06:24:19,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2025-03-04 06:24:19,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2025-03-04 06:24:19,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2025-03-04 06:24:19,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2025-03-04 06:24:19,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2025-03-04 06:24:19,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2025-03-04 06:24:19,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2025-03-04 06:24:19,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2025-03-04 06:24:19,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2025-03-04 06:24:19,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2025-03-04 06:24:19,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2025-03-04 06:24:19,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2025-03-04 06:24:19,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2025-03-04 06:24:19,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2025-03-04 06:24:19,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2025-03-04 06:24:19,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2025-03-04 06:24:19,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2025-03-04 06:24:19,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2025-03-04 06:24:19,872 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2025-03-04 06:24:19,872 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2025-03-04 06:24:19,872 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2025-03-04 06:24:19,872 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2025-03-04 06:24:19,872 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2025-03-04 06:24:19,872 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (22 of 55 remaining) [2025-03-04 06:24:19,872 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 55 remaining) [2025-03-04 06:24:19,872 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 55 remaining) [2025-03-04 06:24:19,872 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2025-03-04 06:24:19,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2025-03-04 06:24:19,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2025-03-04 06:24:19,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2025-03-04 06:24:19,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2025-03-04 06:24:19,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2025-03-04 06:24:19,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2025-03-04 06:24:19,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2025-03-04 06:24:19,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2025-03-04 06:24:19,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2025-03-04 06:24:19,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2025-03-04 06:24:19,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2025-03-04 06:24:19,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2025-03-04 06:24:19,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2025-03-04 06:24:19,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2025-03-04 06:24:19,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2025-03-04 06:24:19,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2025-03-04 06:24:19,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2025-03-04 06:24:19,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2025-03-04 06:24:19,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2025-03-04 06:24:19,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:24:19,875 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-04 06:24:19,875 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-04 06:24:19,878 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-04 06:24:20,028 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:24:20,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 326 places, 346 transitions, 710 flow [2025-03-04 06:24:20,129 INFO L124 PetriNetUnfolderBase]: 27/371 cut-off events. [2025-03-04 06:24:20,129 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-04 06:24:20,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 371 events. 27/371 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1753 event pairs, 0 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 324. Up to 4 conditions per place. [2025-03-04 06:24:20,136 INFO L82 GeneralOperation]: Start removeDead. Operand has 326 places, 346 transitions, 710 flow [2025-03-04 06:24:20,140 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 326 places, 346 transitions, 710 flow [2025-03-04 06:24:20,141 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:24:20,141 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;@34b3c690, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:24:20,141 INFO L334 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2025-03-04 06:24:20,147 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:24:20,147 INFO L124 PetriNetUnfolderBase]: 0/79 cut-off events. [2025-03-04 06:24:20,148 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-04 06:24:20,148 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:24:20,148 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] [2025-03-04 06:24:20,148 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2025-03-04 06:24:20,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:24:20,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1950397605, now seen corresponding path program 1 times [2025-03-04 06:24:20,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:24:20,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030486676] [2025-03-04 06:24:20,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:24:20,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:24:20,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 06:24:20,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 06:24:20,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:24:20,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:24:20,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:24:20,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:24:20,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030486676] [2025-03-04 06:24:20,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030486676] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:24:20,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:24:20,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:24:20,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778941276] [2025-03-04 06:24:20,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:24:20,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 06:24:20,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:24:20,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 06:24:20,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 06:24:20,253 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 346 [2025-03-04 06:24:20,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 346 transitions, 710 flow. Second operand has 2 states, 2 states have (on average 277.5) internal successors, (555), 2 states have internal predecessors, (555), 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) [2025-03-04 06:24:20,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:24:20,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 346 [2025-03-04 06:24:20,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:24:21,198 INFO L124 PetriNetUnfolderBase]: 547/3321 cut-off events. [2025-03-04 06:24:21,198 INFO L125 PetriNetUnfolderBase]: For 241/241 co-relation queries the response was YES. [2025-03-04 06:24:21,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3990 conditions, 3321 events. 547/3321 cut-off events. For 241/241 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 30466 event pairs, 220 based on Foata normal form. 316/3160 useless extension candidates. Maximal degree in co-relation 710. Up to 548 conditions per place. [2025-03-04 06:24:21,240 INFO L140 encePairwiseOnDemand]: 297/346 looper letters, 21 selfloop transitions, 0 changer transitions 0/294 dead transitions. [2025-03-04 06:24:21,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 294 transitions, 648 flow [2025-03-04 06:24:21,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 06:24:21,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 06:24:21,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 622 transitions. [2025-03-04 06:24:21,254 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8988439306358381 [2025-03-04 06:24:21,256 INFO L175 Difference]: Start difference. First operand has 326 places, 346 transitions, 710 flow. Second operand 2 states and 622 transitions. [2025-03-04 06:24:21,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 294 transitions, 648 flow [2025-03-04 06:24:21,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 294 transitions, 646 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-04 06:24:21,270 INFO L231 Difference]: Finished difference. Result has 281 places, 294 transitions, 604 flow [2025-03-04 06:24:21,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=604, PETRI_PLACES=281, PETRI_TRANSITIONS=294} [2025-03-04 06:24:21,275 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -45 predicate places. [2025-03-04 06:24:21,275 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 294 transitions, 604 flow [2025-03-04 06:24:21,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 277.5) internal successors, (555), 2 states have internal predecessors, (555), 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) [2025-03-04 06:24:21,276 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:24:21,276 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] [2025-03-04 06:24:21,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:24:21,276 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2025-03-04 06:24:21,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:24:21,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1159718460, now seen corresponding path program 1 times [2025-03-04 06:24:21,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:24:21,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069553590] [2025-03-04 06:24:21,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:24:21,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:24:21,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-04 06:24:21,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-04 06:24:21,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:24:21,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:24:21,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:24:21,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:24:21,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069553590] [2025-03-04 06:24:21,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069553590] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:24:21,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:24:21,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:24:21,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100572579] [2025-03-04 06:24:21,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:24:21,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:24:21,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:24:21,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:24:21,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:24:22,236 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 346 [2025-03-04 06:24:22,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 294 transitions, 604 flow. Second operand has 6 states, 6 states have (on average 240.16666666666666) internal successors, (1441), 6 states have internal predecessors, (1441), 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) [2025-03-04 06:24:22,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:24:22,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 346 [2025-03-04 06:24:22,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:24:30,411 INFO L124 PetriNetUnfolderBase]: 25037/73115 cut-off events. [2025-03-04 06:24:30,411 INFO L125 PetriNetUnfolderBase]: For 1660/1660 co-relation queries the response was YES. [2025-03-04 06:24:30,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108557 conditions, 73115 events. 25037/73115 cut-off events. For 1660/1660 co-relation queries the response was YES. Maximal size of possible extension queue 3546. Compared 1035771 event pairs, 2316 based on Foata normal form. 0/62750 useless extension candidates. Maximal degree in co-relation 108551. Up to 12309 conditions per place. [2025-03-04 06:24:31,151 INFO L140 encePairwiseOnDemand]: 298/346 looper letters, 180 selfloop transitions, 96 changer transitions 0/512 dead transitions. [2025-03-04 06:24:31,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 512 transitions, 1632 flow [2025-03-04 06:24:31,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:24:31,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:24:31,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1716 transitions. [2025-03-04 06:24:31,160 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8265895953757225 [2025-03-04 06:24:31,161 INFO L175 Difference]: Start difference. First operand has 281 places, 294 transitions, 604 flow. Second operand 6 states and 1716 transitions. [2025-03-04 06:24:31,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 512 transitions, 1632 flow [2025-03-04 06:24:31,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 512 transitions, 1632 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:24:31,178 INFO L231 Difference]: Finished difference. Result has 291 places, 390 transitions, 1276 flow [2025-03-04 06:24:31,178 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1276, PETRI_PLACES=291, PETRI_TRANSITIONS=390} [2025-03-04 06:24:31,179 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -35 predicate places. [2025-03-04 06:24:31,179 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 390 transitions, 1276 flow [2025-03-04 06:24:31,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 240.16666666666666) internal successors, (1441), 6 states have internal predecessors, (1441), 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) [2025-03-04 06:24:31,180 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:24:31,180 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:24:31,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:24:31,181 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2025-03-04 06:24:31,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:24:31,182 INFO L85 PathProgramCache]: Analyzing trace with hash 2103404561, now seen corresponding path program 1 times [2025-03-04 06:24:31,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:24:31,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912090729] [2025-03-04 06:24:31,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:24:31,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:24:31,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-04 06:24:31,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-04 06:24:31,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:24:31,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:24:31,200 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 06:24:31,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-04 06:24:31,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-04 06:24:31,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:24:31,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:24:31,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 06:24:31,218 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 06:24:31,218 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 73 remaining) [2025-03-04 06:24:31,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (71 of 73 remaining) [2025-03-04 06:24:31,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (70 of 73 remaining) [2025-03-04 06:24:31,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (69 of 73 remaining) [2025-03-04 06:24:31,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (68 of 73 remaining) [2025-03-04 06:24:31,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (67 of 73 remaining) [2025-03-04 06:24:31,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (66 of 73 remaining) [2025-03-04 06:24:31,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (65 of 73 remaining) [2025-03-04 06:24:31,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (64 of 73 remaining) [2025-03-04 06:24:31,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (63 of 73 remaining) [2025-03-04 06:24:31,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (62 of 73 remaining) [2025-03-04 06:24:31,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (61 of 73 remaining) [2025-03-04 06:24:31,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (60 of 73 remaining) [2025-03-04 06:24:31,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 73 remaining) [2025-03-04 06:24:31,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (58 of 73 remaining) [2025-03-04 06:24:31,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (57 of 73 remaining) [2025-03-04 06:24:31,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (56 of 73 remaining) [2025-03-04 06:24:31,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (55 of 73 remaining) [2025-03-04 06:24:31,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (54 of 73 remaining) [2025-03-04 06:24:31,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (53 of 73 remaining) [2025-03-04 06:24:31,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (52 of 73 remaining) [2025-03-04 06:24:31,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (51 of 73 remaining) [2025-03-04 06:24:31,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (50 of 73 remaining) [2025-03-04 06:24:31,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (49 of 73 remaining) [2025-03-04 06:24:31,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (48 of 73 remaining) [2025-03-04 06:24:31,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (47 of 73 remaining) [2025-03-04 06:24:31,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 73 remaining) [2025-03-04 06:24:31,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 73 remaining) [2025-03-04 06:24:31,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 73 remaining) [2025-03-04 06:24:31,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 73 remaining) [2025-03-04 06:24:31,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (42 of 73 remaining) [2025-03-04 06:24:31,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 73 remaining) [2025-03-04 06:24:31,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (40 of 73 remaining) [2025-03-04 06:24:31,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 73 remaining) [2025-03-04 06:24:31,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (38 of 73 remaining) [2025-03-04 06:24:31,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (37 of 73 remaining) [2025-03-04 06:24:31,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 73 remaining) [2025-03-04 06:24:31,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 73 remaining) [2025-03-04 06:24:31,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 73 remaining) [2025-03-04 06:24:31,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 73 remaining) [2025-03-04 06:24:31,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (32 of 73 remaining) [2025-03-04 06:24:31,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (31 of 73 remaining) [2025-03-04 06:24:31,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (30 of 73 remaining) [2025-03-04 06:24:31,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 73 remaining) [2025-03-04 06:24:31,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 73 remaining) [2025-03-04 06:24:31,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 73 remaining) [2025-03-04 06:24:31,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 73 remaining) [2025-03-04 06:24:31,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (25 of 73 remaining) [2025-03-04 06:24:31,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (24 of 73 remaining) [2025-03-04 06:24:31,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 73 remaining) [2025-03-04 06:24:31,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (22 of 73 remaining) [2025-03-04 06:24:31,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 73 remaining) [2025-03-04 06:24:31,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 73 remaining) [2025-03-04 06:24:31,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 73 remaining) [2025-03-04 06:24:31,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 73 remaining) [2025-03-04 06:24:31,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 73 remaining) [2025-03-04 06:24:31,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 73 remaining) [2025-03-04 06:24:31,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 73 remaining) [2025-03-04 06:24:31,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 73 remaining) [2025-03-04 06:24:31,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (13 of 73 remaining) [2025-03-04 06:24:31,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (12 of 73 remaining) [2025-03-04 06:24:31,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 73 remaining) [2025-03-04 06:24:31,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 73 remaining) [2025-03-04 06:24:31,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 73 remaining) [2025-03-04 06:24:31,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 73 remaining) [2025-03-04 06:24:31,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 73 remaining) [2025-03-04 06:24:31,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (6 of 73 remaining) [2025-03-04 06:24:31,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 73 remaining) [2025-03-04 06:24:31,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 73 remaining) [2025-03-04 06:24:31,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 73 remaining) [2025-03-04 06:24:31,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 73 remaining) [2025-03-04 06:24:31,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 73 remaining) [2025-03-04 06:24:31,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 73 remaining) [2025-03-04 06:24:31,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 06:24:31,223 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-04 06:24:31,224 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-04 06:24:31,224 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-03-04 06:24:31,395 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:24:31,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 425 places, 452 transitions, 932 flow [2025-03-04 06:24:31,499 INFO L124 PetriNetUnfolderBase]: 36/486 cut-off events. [2025-03-04 06:24:31,500 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-04 06:24:31,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 486 events. 36/486 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2535 event pairs, 0 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 429. Up to 5 conditions per place. [2025-03-04 06:24:31,513 INFO L82 GeneralOperation]: Start removeDead. Operand has 425 places, 452 transitions, 932 flow [2025-03-04 06:24:31,520 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 425 places, 452 transitions, 932 flow [2025-03-04 06:24:31,521 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:24:31,521 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;@34b3c690, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:24:31,522 INFO L334 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2025-03-04 06:24:31,534 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:24:31,535 INFO L124 PetriNetUnfolderBase]: 0/75 cut-off events. [2025-03-04 06:24:31,535 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-04 06:24:31,535 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:24:31,535 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] [2025-03-04 06:24:31,535 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2025-03-04 06:24:31,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:24:31,536 INFO L85 PathProgramCache]: Analyzing trace with hash 784633983, now seen corresponding path program 1 times [2025-03-04 06:24:31,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:24:31,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972117816] [2025-03-04 06:24:31,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:24:31,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:24:31,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 06:24:31,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 06:24:31,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:24:31,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:24:31,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:24:31,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:24:31,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972117816] [2025-03-04 06:24:31,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972117816] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:24:31,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:24:31,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:24:31,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929235657] [2025-03-04 06:24:31,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:24:31,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 06:24:31,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:24:31,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 06:24:31,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 06:24:31,557 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 452 [2025-03-04 06:24:31,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 452 transitions, 932 flow. Second operand has 2 states, 2 states have (on average 360.5) internal successors, (721), 2 states have internal predecessors, (721), 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) [2025-03-04 06:24:31,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:24:31,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 452 [2025-03-04 06:24:31,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:24:34,490 INFO L124 PetriNetUnfolderBase]: 3672/17546 cut-off events. [2025-03-04 06:24:34,491 INFO L125 PetriNetUnfolderBase]: For 2166/2166 co-relation queries the response was YES. [2025-03-04 06:24:34,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21966 conditions, 17546 events. 3672/17546 cut-off events. For 2166/2166 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 215496 event pairs, 1720 based on Foata normal form. 1891/16723 useless extension candidates. Maximal degree in co-relation 4000. Up to 3673 conditions per place. [2025-03-04 06:24:34,667 INFO L140 encePairwiseOnDemand]: 387/452 looper letters, 28 selfloop transitions, 0 changer transitions 0/384 dead transitions. [2025-03-04 06:24:34,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 384 transitions, 852 flow [2025-03-04 06:24:34,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 06:24:34,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 06:24:34,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 811 transitions. [2025-03-04 06:24:34,670 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8971238938053098 [2025-03-04 06:24:34,670 INFO L175 Difference]: Start difference. First operand has 425 places, 452 transitions, 932 flow. Second operand 2 states and 811 transitions. [2025-03-04 06:24:34,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 384 transitions, 852 flow [2025-03-04 06:24:34,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 384 transitions, 846 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-03-04 06:24:34,676 INFO L231 Difference]: Finished difference. Result has 366 places, 384 transitions, 790 flow [2025-03-04 06:24:34,677 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=452, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=790, PETRI_PLACES=366, PETRI_TRANSITIONS=384} [2025-03-04 06:24:34,677 INFO L279 CegarLoopForPetriNet]: 425 programPoint places, -59 predicate places. [2025-03-04 06:24:34,677 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 384 transitions, 790 flow [2025-03-04 06:24:34,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 360.5) internal successors, (721), 2 states have internal predecessors, (721), 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) [2025-03-04 06:24:34,678 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:24:34,678 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] [2025-03-04 06:24:34,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 06:24:34,678 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2025-03-04 06:24:34,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:24:34,679 INFO L85 PathProgramCache]: Analyzing trace with hash 582733864, now seen corresponding path program 1 times [2025-03-04 06:24:34,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:24:34,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090915641] [2025-03-04 06:24:34,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:24:34,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:24:34,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-04 06:24:34,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-04 06:24:34,690 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:24:34,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:24:34,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:24:34,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:24:34,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090915641] [2025-03-04 06:24:34,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090915641] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:24:34,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:24:34,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:24:34,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310206549] [2025-03-04 06:24:34,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:24:34,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:24:34,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:24:34,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:24:34,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:24:35,381 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 452 [2025-03-04 06:24:35,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 384 transitions, 790 flow. Second operand has 6 states, 6 states have (on average 311.1666666666667) internal successors, (1867), 6 states have internal predecessors, (1867), 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) [2025-03-04 06:24:35,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:24:35,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 452 [2025-03-04 06:24:35,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand