./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 c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 08:58:03,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 08:58:03,208 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 08:58:03,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 08:58:03,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 08:58:03,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 08:58:03,233 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 08:58:03,233 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 08:58:03,233 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 08:58:03,234 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 08:58:03,234 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 08:58:03,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 08:58:03,235 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 08:58:03,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 08:58:03,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 08:58:03,235 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 08:58:03,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 08:58:03,235 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 08:58:03,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 08:58:03,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 08:58:03,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 08:58:03,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 08:58:03,236 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 08:58:03,236 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 08:58:03,236 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 08:58:03,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 08:58:03,236 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 08:58:03,236 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 08:58:03,236 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 08:58:03,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 08:58:03,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 08:58:03,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 08:58:03,236 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 08:58:03,236 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 08:58:03,236 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 08:58:03,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 08:58:03,237 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 08:58:03,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 08:58:03,237 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 08:58:03,237 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 08:58:03,237 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 08:58:03,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 08:58:03,237 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b [2025-02-06 08:58:03,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 08:58:03,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 08:58:03,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 08:58:03,452 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 08:58:03,452 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 08:58:03,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i [2025-02-06 08:58:04,775 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b3880e43/9868044918124b4bb014bcec8af1e701/FLAG0dca47c0f [2025-02-06 08:58:05,113 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 08:58:05,115 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i [2025-02-06 08:58:05,128 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b3880e43/9868044918124b4bb014bcec8af1e701/FLAG0dca47c0f [2025-02-06 08:58:05,366 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b3880e43/9868044918124b4bb014bcec8af1e701 [2025-02-06 08:58:05,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 08:58:05,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 08:58:05,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 08:58:05,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 08:58:05,374 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 08:58:05,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1c6e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05, skipping insertion in model container [2025-02-06 08:58:05,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,403 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 08:58:05,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 08:58:05,628 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 08:58:05,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 08:58:05,725 INFO L204 MainTranslator]: Completed translation [2025-02-06 08:58:05,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05 WrapperNode [2025-02-06 08:58:05,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 08:58:05,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 08:58:05,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 08:58:05,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 08:58:05,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,746 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,765 INFO L138 Inliner]: procedures = 172, calls = 42, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 261 [2025-02-06 08:58:05,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 08:58:05,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 08:58:05,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 08:58:05,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 08:58:05,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,775 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,775 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,786 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,790 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,791 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 08:58:05,797 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 08:58:05,797 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 08:58:05,797 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 08:58:05,798 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 08:58:05,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 08:58:05,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 08:58:05,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 08:58:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 08:58:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-06 08:58:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-06 08:58:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 08:58:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 08:58:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 08:58:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 08:58:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 08:58:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 08:58:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 08:58:05,849 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 08:58:05,930 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 08:58:05,931 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 08:58:06,342 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L709: havoc inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset; [2025-02-06 08:58:06,342 INFO L1309 $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 [2025-02-06 08:58:06,342 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L727: havoc dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset; [2025-02-06 08:58:06,342 INFO L1309 $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 [2025-02-06 08:58:06,364 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 08:58:06,364 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 08:58:06,674 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 08:58:06,674 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 08:58:06,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:58:06 BoogieIcfgContainer [2025-02-06 08:58:06,675 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 08:58:06,676 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 08:58:06,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 08:58:06,679 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 08:58:06,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 08:58:05" (1/3) ... [2025-02-06 08:58:06,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a810739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:58:06, skipping insertion in model container [2025-02-06 08:58:06,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (2/3) ... [2025-02-06 08:58:06,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a810739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:58:06, skipping insertion in model container [2025-02-06 08:58:06,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:58:06" (3/3) ... [2025-02-06 08:58:06,681 INFO L128 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas-race.i [2025-02-06 08:58:06,690 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 08:58:06,691 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04_incdec_cas-race.i that has 2 procedures, 127 locations, 1 initial locations, 3 loop locations, and 18 error locations. [2025-02-06 08:58:06,691 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 08:58:06,763 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:06,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 136 transitions, 276 flow [2025-02-06 08:58:06,905 INFO L124 PetriNetUnfolderBase]: 9/143 cut-off events. [2025-02-06 08:58:06,907 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 08:58:06,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 143 events. 9/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 324 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 116. Up to 2 conditions per place. [2025-02-06 08:58:06,915 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 136 transitions, 276 flow [2025-02-06 08:58:06,918 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 136 transitions, 276 flow [2025-02-06 08:58:06,926 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:06,938 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;@5017452d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:06,939 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2025-02-06 08:58:06,945 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:06,945 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2025-02-06 08:58:06,945 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 08:58:06,946 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:06,946 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] [2025-02-06 08:58:06,950 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)] === [2025-02-06 08:58:06,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:06,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1119117724, now seen corresponding path program 1 times [2025-02-06 08:58:06,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:06,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114356724] [2025-02-06 08:58:06,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:06,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:07,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 08:58:07,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 08:58:07,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:07,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:07,025 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 08:58:07,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 08:58:07,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 08:58:07,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:07,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:07,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 08:58:07,056 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 08:58:07,057 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2025-02-06 08:58:07,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2025-02-06 08:58:07,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2025-02-06 08:58:07,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2025-02-06 08:58:07,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2025-02-06 08:58:07,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2025-02-06 08:58:07,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2025-02-06 08:58:07,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2025-02-06 08:58:07,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2025-02-06 08:58:07,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2025-02-06 08:58:07,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2025-02-06 08:58:07,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2025-02-06 08:58:07,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2025-02-06 08:58:07,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2025-02-06 08:58:07,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2025-02-06 08:58:07,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2025-02-06 08:58:07,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2025-02-06 08:58:07,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2025-02-06 08:58:07,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2025-02-06 08:58:07,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2025-02-06 08:58:07,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2025-02-06 08:58:07,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2025-02-06 08:58:07,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 08:58:07,068 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-06 08:58:07,074 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 08:58:07,075 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 08:58:07,235 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:07,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 244 transitions, 498 flow [2025-02-06 08:58:07,320 INFO L124 PetriNetUnfolderBase]: 18/260 cut-off events. [2025-02-06 08:58:07,320 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 08:58:07,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 260 events. 18/260 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1003 event pairs, 0 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 223. Up to 3 conditions per place. [2025-02-06 08:58:07,326 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 244 transitions, 498 flow [2025-02-06 08:58:07,332 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 244 transitions, 498 flow [2025-02-06 08:58:07,333 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:07,334 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;@5017452d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:07,334 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2025-02-06 08:58:07,341 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:07,341 INFO L124 PetriNetUnfolderBase]: 0/66 cut-off events. [2025-02-06 08:58:07,341 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 08:58:07,341 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:07,341 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] [2025-02-06 08:58:07,342 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)] === [2025-02-06 08:58:07,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:07,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1085618617, now seen corresponding path program 1 times [2025-02-06 08:58:07,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:07,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059022688] [2025-02-06 08:58:07,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:07,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:07,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 08:58:07,369 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 08:58:07,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:07,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:07,370 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 08:58:07,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 08:58:07,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 08:58:07,388 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:07,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:07,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 08:58:07,396 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 08:58:07,396 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 55 remaining) [2025-02-06 08:58:07,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2025-02-06 08:58:07,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2025-02-06 08:58:07,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2025-02-06 08:58:07,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2025-02-06 08:58:07,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2025-02-06 08:58:07,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (48 of 55 remaining) [2025-02-06 08:58:07,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2025-02-06 08:58:07,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2025-02-06 08:58:07,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2025-02-06 08:58:07,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2025-02-06 08:58:07,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2025-02-06 08:58:07,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2025-02-06 08:58:07,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2025-02-06 08:58:07,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2025-02-06 08:58:07,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2025-02-06 08:58:07,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2025-02-06 08:58:07,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2025-02-06 08:58:07,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2025-02-06 08:58:07,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2025-02-06 08:58:07,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2025-02-06 08:58:07,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2025-02-06 08:58:07,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2025-02-06 08:58:07,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2025-02-06 08:58:07,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2025-02-06 08:58:07,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2025-02-06 08:58:07,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2025-02-06 08:58:07,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2025-02-06 08:58:07,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2025-02-06 08:58:07,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2025-02-06 08:58:07,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2025-02-06 08:58:07,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2025-02-06 08:58:07,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (22 of 55 remaining) [2025-02-06 08:58:07,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 55 remaining) [2025-02-06 08:58:07,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 55 remaining) [2025-02-06 08:58:07,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2025-02-06 08:58:07,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2025-02-06 08:58:07,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2025-02-06 08:58:07,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2025-02-06 08:58:07,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2025-02-06 08:58:07,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2025-02-06 08:58:07,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2025-02-06 08:58:07,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2025-02-06 08:58:07,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2025-02-06 08:58:07,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2025-02-06 08:58:07,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2025-02-06 08:58:07,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2025-02-06 08:58:07,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2025-02-06 08:58:07,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2025-02-06 08:58:07,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2025-02-06 08:58:07,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2025-02-06 08:58:07,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2025-02-06 08:58:07,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2025-02-06 08:58:07,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2025-02-06 08:58:07,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2025-02-06 08:58:07,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 08:58:07,400 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-06 08:58:07,401 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 08:58:07,401 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-06 08:58:07,595 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:07,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 332 places, 352 transitions, 722 flow [2025-02-06 08:58:07,758 INFO L124 PetriNetUnfolderBase]: 27/377 cut-off events. [2025-02-06 08:58:07,758 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-06 08:58:07,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 377 events. 27/377 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1779 event pairs, 0 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 330. Up to 4 conditions per place. [2025-02-06 08:58:07,768 INFO L82 GeneralOperation]: Start removeDead. Operand has 332 places, 352 transitions, 722 flow [2025-02-06 08:58:07,774 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 332 places, 352 transitions, 722 flow [2025-02-06 08:58:07,776 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:07,776 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;@5017452d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:07,777 INFO L334 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2025-02-06 08:58:07,786 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:07,788 INFO L124 PetriNetUnfolderBase]: 0/79 cut-off events. [2025-02-06 08:58:07,788 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 08:58:07,788 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:07,788 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] [2025-02-06 08:58:07,789 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2025-02-06 08:58:07,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:07,789 INFO L85 PathProgramCache]: Analyzing trace with hash 898952037, now seen corresponding path program 1 times [2025-02-06 08:58:07,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:07,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190241705] [2025-02-06 08:58:07,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:07,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:07,807 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-02-06 08:58:07,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-02-06 08:58:07,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:07,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:07,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:07,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:07,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190241705] [2025-02-06 08:58:07,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190241705] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:07,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:07,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 08:58:07,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627754561] [2025-02-06 08:58:07,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:07,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 08:58:07,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:07,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 08:58:07,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 08:58:07,924 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 352 [2025-02-06 08:58:07,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 352 transitions, 722 flow. Second operand has 2 states, 2 states have (on average 283.5) internal successors, (567), 2 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:58:07,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:07,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 352 [2025-02-06 08:58:07,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:09,008 INFO L124 PetriNetUnfolderBase]: 547/3383 cut-off events. [2025-02-06 08:58:09,009 INFO L125 PetriNetUnfolderBase]: For 241/241 co-relation queries the response was YES. [2025-02-06 08:58:09,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4052 conditions, 3383 events. 547/3383 cut-off events. For 241/241 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 30965 event pairs, 220 based on Foata normal form. 316/3222 useless extension candidates. Maximal degree in co-relation 722. Up to 548 conditions per place. [2025-02-06 08:58:09,061 INFO L140 encePairwiseOnDemand]: 303/352 looper letters, 21 selfloop transitions, 0 changer transitions 0/300 dead transitions. [2025-02-06 08:58:09,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 300 transitions, 660 flow [2025-02-06 08:58:09,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 08:58:09,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 08:58:09,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 634 transitions. [2025-02-06 08:58:09,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9005681818181818 [2025-02-06 08:58:09,079 INFO L175 Difference]: Start difference. First operand has 332 places, 352 transitions, 722 flow. Second operand 2 states and 634 transitions. [2025-02-06 08:58:09,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 300 transitions, 660 flow [2025-02-06 08:58:09,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 300 transitions, 658 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:09,163 INFO L231 Difference]: Finished difference. Result has 287 places, 300 transitions, 616 flow [2025-02-06 08:58:09,165 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=616, PETRI_PLACES=287, PETRI_TRANSITIONS=300} [2025-02-06 08:58:09,169 INFO L279 CegarLoopForPetriNet]: 332 programPoint places, -45 predicate places. [2025-02-06 08:58:09,169 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 300 transitions, 616 flow [2025-02-06 08:58:09,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 283.5) internal successors, (567), 2 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:58:09,170 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:09,171 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] [2025-02-06 08:58:09,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 08:58:09,171 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2025-02-06 08:58:09,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:09,172 INFO L85 PathProgramCache]: Analyzing trace with hash 773896969, now seen corresponding path program 1 times [2025-02-06 08:58:09,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:09,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106525597] [2025-02-06 08:58:09,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:09,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:09,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 08:58:09,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 08:58:09,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:09,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:09,200 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 08:58:09,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 08:58:09,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 08:58:09,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:09,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:09,214 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 08:58:09,214 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 08:58:09,214 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 73 remaining) [2025-02-06 08:58:09,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (71 of 73 remaining) [2025-02-06 08:58:09,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (70 of 73 remaining) [2025-02-06 08:58:09,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (69 of 73 remaining) [2025-02-06 08:58:09,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (68 of 73 remaining) [2025-02-06 08:58:09,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (67 of 73 remaining) [2025-02-06 08:58:09,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (66 of 73 remaining) [2025-02-06 08:58:09,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (65 of 73 remaining) [2025-02-06 08:58:09,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (64 of 73 remaining) [2025-02-06 08:58:09,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (63 of 73 remaining) [2025-02-06 08:58:09,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (62 of 73 remaining) [2025-02-06 08:58:09,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (61 of 73 remaining) [2025-02-06 08:58:09,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (60 of 73 remaining) [2025-02-06 08:58:09,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (58 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (57 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (56 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (55 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (54 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (53 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (52 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (51 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (50 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (49 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (48 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (47 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 73 remaining) [2025-02-06 08:58:09,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (42 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (40 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (38 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (37 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (32 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (31 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (30 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (25 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (24 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (22 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 73 remaining) [2025-02-06 08:58:09,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (13 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (12 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (6 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 73 remaining) [2025-02-06 08:58:09,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 73 remaining) [2025-02-06 08:58:09,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 08:58:09,218 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 08:58:09,220 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 08:58:09,220 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-02-06 08:58:09,368 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:09,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 433 places, 460 transitions, 948 flow [2025-02-06 08:58:09,440 INFO L124 PetriNetUnfolderBase]: 36/494 cut-off events. [2025-02-06 08:58:09,441 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-06 08:58:09,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 513 conditions, 494 events. 36/494 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2567 event pairs, 0 based on Foata normal form. 0/381 useless extension candidates. Maximal degree in co-relation 437. Up to 5 conditions per place. [2025-02-06 08:58:09,448 INFO L82 GeneralOperation]: Start removeDead. Operand has 433 places, 460 transitions, 948 flow [2025-02-06 08:58:09,456 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 433 places, 460 transitions, 948 flow [2025-02-06 08:58:09,457 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:09,457 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;@5017452d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:09,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2025-02-06 08:58:09,462 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:09,462 INFO L124 PetriNetUnfolderBase]: 0/75 cut-off events. [2025-02-06 08:58:09,462 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 08:58:09,462 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:09,463 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] [2025-02-06 08:58:09,463 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2025-02-06 08:58:09,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:09,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1677586769, now seen corresponding path program 1 times [2025-02-06 08:58:09,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:09,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602489454] [2025-02-06 08:58:09,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:09,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:09,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-02-06 08:58:09,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-02-06 08:58:09,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:09,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:09,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:09,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:09,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602489454] [2025-02-06 08:58:09,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602489454] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:09,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:09,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 08:58:09,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976254399] [2025-02-06 08:58:09,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:09,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 08:58:09,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:09,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 08:58:09,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 08:58:09,507 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 460 [2025-02-06 08:58:09,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 460 transitions, 948 flow. Second operand has 2 states, 2 states have (on average 368.5) internal successors, (737), 2 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:58:09,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:09,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 460 [2025-02-06 08:58:09,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:13,059 INFO L124 PetriNetUnfolderBase]: 3672/17858 cut-off events. [2025-02-06 08:58:13,060 INFO L125 PetriNetUnfolderBase]: For 2166/2166 co-relation queries the response was YES. [2025-02-06 08:58:13,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22278 conditions, 17858 events. 3672/17858 cut-off events. For 2166/2166 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 220370 event pairs, 1720 based on Foata normal form. 1891/17035 useless extension candidates. Maximal degree in co-relation 4062. Up to 3673 conditions per place. [2025-02-06 08:58:13,283 INFO L140 encePairwiseOnDemand]: 395/460 looper letters, 28 selfloop transitions, 0 changer transitions 0/392 dead transitions. [2025-02-06 08:58:13,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 392 transitions, 868 flow [2025-02-06 08:58:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 08:58:13,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 08:58:13,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 827 transitions. [2025-02-06 08:58:13,289 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8989130434782608 [2025-02-06 08:58:13,289 INFO L175 Difference]: Start difference. First operand has 433 places, 460 transitions, 948 flow. Second operand 2 states and 827 transitions. [2025-02-06 08:58:13,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 392 transitions, 868 flow [2025-02-06 08:58:13,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 392 transitions, 862 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:13,304 INFO L231 Difference]: Finished difference. Result has 374 places, 392 transitions, 806 flow [2025-02-06 08:58:13,304 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=806, PETRI_PLACES=374, PETRI_TRANSITIONS=392} [2025-02-06 08:58:13,305 INFO L279 CegarLoopForPetriNet]: 433 programPoint places, -59 predicate places. [2025-02-06 08:58:13,307 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 392 transitions, 806 flow [2025-02-06 08:58:13,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 368.5) internal successors, (737), 2 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:58:13,307 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:13,307 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:58:13,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 08:58:13,308 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2025-02-06 08:58:13,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:13,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1808455601, now seen corresponding path program 1 times [2025-02-06 08:58:13,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:13,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730345692] [2025-02-06 08:58:13,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:13,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:13,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 08:58:13,342 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 08:58:13,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:13,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:13,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:13,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:13,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730345692] [2025-02-06 08:58:13,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730345692] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:13,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:13,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:58:13,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52986644] [2025-02-06 08:58:13,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:13,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:58:13,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:13,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:58:13,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:58:14,359 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 460 [2025-02-06 08:58:14,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 392 transitions, 806 flow. Second operand has 6 states, 6 states have (on average 319.1666666666667) internal successors, (1915), 6 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:58:14,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:14,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 460 [2025-02-06 08:58:14,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand