./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.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/goblint-regression/28-race_reach_94-alloc_region_racing.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 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:27:27,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:27:27,963 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:27:27,970 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:27:27,971 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:27:27,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:27:27,998 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:27:27,998 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:27:27,999 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:27:27,999 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:27:28,000 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:27:28,000 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:27:28,000 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:27:28,001 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:27:28,001 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:27:28,001 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:27:28,001 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:27:28,002 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:27:28,002 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:27:28,002 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:27:28,002 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:27:28,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:27:28,003 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:27:28,003 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:27:28,003 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:27:28,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:27:28,003 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:27:28,003 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:27:28,003 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:27:28,003 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:27:28,003 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:27:28,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:27:28,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:27:28,004 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:27:28,004 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:27:28,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:27:28,004 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:27:28,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:27:28,004 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:27:28,004 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:27:28,005 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:27:28,005 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:27:28,005 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 -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2025-02-06 09:27:28,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:27:28,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:27:28,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:27:28,304 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:27:28,305 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:27:28,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2025-02-06 09:27:29,704 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b9d85f317/ab21d9adb9924cdf893d245728faa278/FLAG7c7c114a7 [2025-02-06 09:27:30,151 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:27:30,152 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2025-02-06 09:27:30,176 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b9d85f317/ab21d9adb9924cdf893d245728faa278/FLAG7c7c114a7 [2025-02-06 09:27:30,190 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b9d85f317/ab21d9adb9924cdf893d245728faa278 [2025-02-06 09:27:30,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:27:30,194 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:27:30,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:27:30,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:27:30,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:27:30,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:27:30" (1/1) ... [2025-02-06 09:27:30,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61afeb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:30, skipping insertion in model container [2025-02-06 09:27:30,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:27:30" (1/1) ... [2025-02-06 09:27:30,253 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:27:30,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:27:30,750 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:27:30,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:27:30,914 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:27:30,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:30 WrapperNode [2025-02-06 09:27:30,915 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:27:30,916 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:27:30,916 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:27:30,916 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:27:30,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:30" (1/1) ... [2025-02-06 09:27:30,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:30" (1/1) ... [2025-02-06 09:27:30,982 INFO L138 Inliner]: procedures = 378, calls = 83, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 429 [2025-02-06 09:27:30,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:27:30,983 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:27:30,983 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:27:30,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:27:30,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:30" (1/1) ... [2025-02-06 09:27:30,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:30" (1/1) ... [2025-02-06 09:27:31,006 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:30" (1/1) ... [2025-02-06 09:27:31,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:30" (1/1) ... [2025-02-06 09:27:31,030 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:30" (1/1) ... [2025-02-06 09:27:31,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:30" (1/1) ... [2025-02-06 09:27:31,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:30" (1/1) ... [2025-02-06 09:27:31,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:30" (1/1) ... [2025-02-06 09:27:31,058 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:27:31,059 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:27:31,059 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:27:31,059 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:27:31,060 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:30" (1/1) ... [2025-02-06 09:27:31,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:27:31,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:27:31,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:27:31,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:27:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:27:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-02-06 09:27:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:27:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-02-06 09:27:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 09:27:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:27:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:27:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 09:27:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:27:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:27:31,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-02-06 09:27:31,121 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 09:27:31,121 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 09:27:31,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:27:31,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:27:31,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:27:31,123 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:27:31,303 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:27:31,306 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:27:31,909 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1270: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-02-06 09:27:31,911 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1270-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-02-06 09:27:32,122 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:27:32,123 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:27:32,177 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:27:32,177 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:27:32,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:27:32 BoogieIcfgContainer [2025-02-06 09:27:32,178 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:27:32,180 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:27:32,180 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:27:32,185 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:27:32,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:27:30" (1/3) ... [2025-02-06 09:27:32,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c743b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:27:32, skipping insertion in model container [2025-02-06 09:27:32,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:30" (2/3) ... [2025-02-06 09:27:32,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c743b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:27:32, skipping insertion in model container [2025-02-06 09:27:32,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:27:32" (3/3) ... [2025-02-06 09:27:32,187 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2025-02-06 09:27:32,199 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:27:32,201 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_94-alloc_region_racing.i that has 2 procedures, 448 locations, 1 initial locations, 13 loop locations, and 29 error locations. [2025-02-06 09:27:32,201 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:27:32,317 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 09:27:32,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 451 places, 477 transitions, 961 flow [2025-02-06 09:27:32,662 INFO L124 PetriNetUnfolderBase]: 44/701 cut-off events. [2025-02-06 09:27:32,665 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:27:32,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 706 conditions, 701 events. 44/701 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2421 event pairs, 0 based on Foata normal form. 0/610 useless extension candidates. Maximal degree in co-relation 393. Up to 8 conditions per place. [2025-02-06 09:27:32,690 INFO L82 GeneralOperation]: Start removeDead. Operand has 451 places, 477 transitions, 961 flow [2025-02-06 09:27:32,703 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 451 places, 477 transitions, 961 flow [2025-02-06 09:27:32,716 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:27:32,729 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;@686ebdce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:27:32,729 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2025-02-06 09:27:32,741 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:27:32,741 INFO L124 PetriNetUnfolderBase]: 0/41 cut-off events. [2025-02-06 09:27:32,741 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:27:32,742 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:27:32,742 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:27:32,743 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-02-06 09:27:32,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:27:32,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1501628147, now seen corresponding path program 1 times [2025-02-06 09:27:32,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:27:32,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411230649] [2025-02-06 09:27:32,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:27:32,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:27:32,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-02-06 09:27:32,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-02-06 09:27:32,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:27:32,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:27:33,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:27:33,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:27:33,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411230649] [2025-02-06 09:27:33,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411230649] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:27:33,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:27:33,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:27:33,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216390916] [2025-02-06 09:27:33,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:27:33,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:27:33,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:27:33,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:27:33,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:27:34,474 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 477 [2025-02-06 09:27:34,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 477 transitions, 961 flow. Second operand has 6 states, 6 states have (on average 304.3333333333333) internal successors, (1826), 6 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:34,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:27:34,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 477 [2025-02-06 09:27:34,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:27:37,301 INFO L124 PetriNetUnfolderBase]: 3778/14744 cut-off events. [2025-02-06 09:27:37,301 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 09:27:37,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22233 conditions, 14744 events. 3778/14744 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 139121 event pairs, 3600 based on Foata normal form. 1530/15132 useless extension candidates. Maximal degree in co-relation 21838. Up to 7479 conditions per place. [2025-02-06 09:27:37,403 INFO L140 encePairwiseOnDemand]: 446/477 looper letters, 141 selfloop transitions, 5 changer transitions 0/447 dead transitions. [2025-02-06 09:27:37,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 447 transitions, 1193 flow [2025-02-06 09:27:37,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:27:37,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:27:37,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1990 transitions. [2025-02-06 09:27:37,434 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6953179594689028 [2025-02-06 09:27:37,436 INFO L175 Difference]: Start difference. First operand has 451 places, 477 transitions, 961 flow. Second operand 6 states and 1990 transitions. [2025-02-06 09:27:37,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 447 transitions, 1193 flow [2025-02-06 09:27:37,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 447 transitions, 1193 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:27:37,461 INFO L231 Difference]: Finished difference. Result has 451 places, 447 transitions, 911 flow [2025-02-06 09:27:37,464 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=477, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=911, PETRI_PLACES=451, PETRI_TRANSITIONS=447} [2025-02-06 09:27:37,467 INFO L279 CegarLoopForPetriNet]: 451 programPoint places, 0 predicate places. [2025-02-06 09:27:37,471 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 447 transitions, 911 flow [2025-02-06 09:27:37,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.3333333333333) internal successors, (1826), 6 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:37,472 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:27:37,472 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:27:37,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:27:37,473 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-02-06 09:27:37,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:27:37,474 INFO L85 PathProgramCache]: Analyzing trace with hash 646401610, now seen corresponding path program 1 times [2025-02-06 09:27:37,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:27:37,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620436203] [2025-02-06 09:27:37,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:27:37,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:27:37,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-06 09:27:37,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-06 09:27:37,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:27:37,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:27:37,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:27:37,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:27:37,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620436203] [2025-02-06 09:27:37,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620436203] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:27:37,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:27:37,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:27:37,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447127225] [2025-02-06 09:27:37,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:27:37,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:27:37,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:27:37,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:27:37,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:27:38,805 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 350 out of 477 [2025-02-06 09:27:38,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 447 transitions, 911 flow. Second operand has 6 states, 6 states have (on average 351.8333333333333) internal successors, (2111), 6 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:38,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:27:38,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 350 of 477 [2025-02-06 09:27:38,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:27:40,678 INFO L124 PetriNetUnfolderBase]: 1984/12796 cut-off events. [2025-02-06 09:27:40,679 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-06 09:27:40,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16671 conditions, 12796 events. 1984/12796 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 127408 event pairs, 1166 based on Foata normal form. 0/11626 useless extension candidates. Maximal degree in co-relation 16613. Up to 3409 conditions per place. [2025-02-06 09:27:40,734 INFO L140 encePairwiseOnDemand]: 440/477 looper letters, 138 selfloop transitions, 107 changer transitions 0/592 dead transitions. [2025-02-06 09:27:40,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 592 transitions, 1694 flow [2025-02-06 09:27:40,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:27:40,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:27:40,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2347 transitions. [2025-02-06 09:27:40,742 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8200559049615653 [2025-02-06 09:27:40,743 INFO L175 Difference]: Start difference. First operand has 451 places, 447 transitions, 911 flow. Second operand 6 states and 2347 transitions. [2025-02-06 09:27:40,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 592 transitions, 1694 flow [2025-02-06 09:27:40,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 592 transitions, 1684 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:27:40,756 INFO L231 Difference]: Finished difference. Result has 455 places, 547 transitions, 1589 flow [2025-02-06 09:27:40,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=477, PETRI_DIFFERENCE_MINUEND_FLOW=899, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1589, PETRI_PLACES=455, PETRI_TRANSITIONS=547} [2025-02-06 09:27:40,758 INFO L279 CegarLoopForPetriNet]: 451 programPoint places, 4 predicate places. [2025-02-06 09:27:40,758 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 547 transitions, 1589 flow [2025-02-06 09:27:40,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 351.8333333333333) internal successors, (2111), 6 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:40,760 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:27:40,760 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:27:40,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:27:40,760 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-02-06 09:27:40,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:27:40,761 INFO L85 PathProgramCache]: Analyzing trace with hash 768027830, now seen corresponding path program 1 times [2025-02-06 09:27:40,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:27:40,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523111159] [2025-02-06 09:27:40,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:27:40,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:27:40,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-02-06 09:27:40,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-02-06 09:27:40,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:27:40,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:27:41,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:27:41,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:27:41,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523111159] [2025-02-06 09:27:41,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523111159] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:27:41,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:27:41,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:27:41,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916138034] [2025-02-06 09:27:41,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:27:41,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:27:41,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:27:41,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:27:41,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:27:41,780 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 477 [2025-02-06 09:27:41,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 547 transitions, 1589 flow. Second operand has 6 states, 6 states have (on average 308.6666666666667) internal successors, (1852), 6 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:41,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:27:41,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 477 [2025-02-06 09:27:41,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:27:44,895 INFO L124 PetriNetUnfolderBase]: 5534/21568 cut-off events. [2025-02-06 09:27:44,895 INFO L125 PetriNetUnfolderBase]: For 3368/3414 co-relation queries the response was YES. [2025-02-06 09:27:44,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36742 conditions, 21568 events. 5534/21568 cut-off events. For 3368/3414 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 220996 event pairs, 3888 based on Foata normal form. 0/19696 useless extension candidates. Maximal degree in co-relation 36212. Up to 10652 conditions per place. [2025-02-06 09:27:44,975 INFO L140 encePairwiseOnDemand]: 424/477 looper letters, 277 selfloop transitions, 171 changer transitions 0/751 dead transitions. [2025-02-06 09:27:44,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 751 transitions, 3085 flow [2025-02-06 09:27:44,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:27:44,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:27:44,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2186 transitions. [2025-02-06 09:27:44,982 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7638015373864431 [2025-02-06 09:27:44,982 INFO L175 Difference]: Start difference. First operand has 455 places, 547 transitions, 1589 flow. Second operand 6 states and 2186 transitions. [2025-02-06 09:27:44,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 751 transitions, 3085 flow [2025-02-06 09:27:44,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 751 transitions, 3085 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:27:45,009 INFO L231 Difference]: Finished difference. Result has 464 places, 711 transitions, 2885 flow [2025-02-06 09:27:45,011 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=477, PETRI_DIFFERENCE_MINUEND_FLOW=1587, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2885, PETRI_PLACES=464, PETRI_TRANSITIONS=711} [2025-02-06 09:27:45,012 INFO L279 CegarLoopForPetriNet]: 451 programPoint places, 13 predicate places. [2025-02-06 09:27:45,012 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 711 transitions, 2885 flow [2025-02-06 09:27:45,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 308.6666666666667) internal successors, (1852), 6 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:45,014 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:27:45,014 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:27:45,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:27:45,014 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-02-06 09:27:45,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:27:45,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1720837867, now seen corresponding path program 1 times [2025-02-06 09:27:45,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:27:45,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930073248] [2025-02-06 09:27:45,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:27:45,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:27:45,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-02-06 09:27:45,046 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-02-06 09:27:45,046 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:27:45,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:27:45,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:27:45,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:27:45,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930073248] [2025-02-06 09:27:45,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930073248] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:27:45,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:27:45,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:27:45,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555401677] [2025-02-06 09:27:45,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:27:45,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:27:45,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:27:45,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:27:45,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:27:46,069 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 477 [2025-02-06 09:27:46,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 711 transitions, 2885 flow. Second operand has 6 states, 6 states have (on average 308.6666666666667) internal successors, (1852), 6 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:46,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:27:46,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 477 [2025-02-06 09:27:46,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:27:49,594 INFO L124 PetriNetUnfolderBase]: 5975/23098 cut-off events. [2025-02-06 09:27:49,594 INFO L125 PetriNetUnfolderBase]: For 7301/7359 co-relation queries the response was YES. [2025-02-06 09:27:49,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44055 conditions, 23098 events. 5975/23098 cut-off events. For 7301/7359 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 237317 event pairs, 3928 based on Foata normal form. 0/21161 useless extension candidates. Maximal degree in co-relation 43501. Up to 11147 conditions per place. [2025-02-06 09:27:49,713 INFO L140 encePairwiseOnDemand]: 424/477 looper letters, 437 selfloop transitions, 171 changer transitions 0/915 dead transitions. [2025-02-06 09:27:49,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 915 transitions, 5021 flow [2025-02-06 09:27:49,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:27:49,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:27:49,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2186 transitions. [2025-02-06 09:27:49,720 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7638015373864431 [2025-02-06 09:27:49,720 INFO L175 Difference]: Start difference. First operand has 464 places, 711 transitions, 2885 flow. Second operand 6 states and 2186 transitions. [2025-02-06 09:27:49,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 915 transitions, 5021 flow [2025-02-06 09:27:49,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 915 transitions, 4829 flow, removed 96 selfloop flow, removed 0 redundant places. [2025-02-06 09:27:49,754 INFO L231 Difference]: Finished difference. Result has 473 places, 875 transitions, 4309 flow [2025-02-06 09:27:49,755 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=477, PETRI_DIFFERENCE_MINUEND_FLOW=2691, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=710, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=659, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4309, PETRI_PLACES=473, PETRI_TRANSITIONS=875} [2025-02-06 09:27:49,756 INFO L279 CegarLoopForPetriNet]: 451 programPoint places, 22 predicate places. [2025-02-06 09:27:49,756 INFO L471 AbstractCegarLoop]: Abstraction has has 473 places, 875 transitions, 4309 flow [2025-02-06 09:27:49,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 308.6666666666667) internal successors, (1852), 6 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:49,757 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:27:49,758 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:27:49,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:27:49,758 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-02-06 09:27:49,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:27:49,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1331117782, now seen corresponding path program 1 times [2025-02-06 09:27:49,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:27:49,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926289327] [2025-02-06 09:27:49,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:27:49,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:27:49,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-06 09:27:49,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-06 09:27:49,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:27:49,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:27:50,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:27:50,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:27:50,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926289327] [2025-02-06 09:27:50,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926289327] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:27:50,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:27:50,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:27:50,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840905627] [2025-02-06 09:27:50,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:27:50,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:27:50,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:27:50,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:27:50,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:27:50,973 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 477 [2025-02-06 09:27:50,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 875 transitions, 4309 flow. Second operand has 6 states, 6 states have (on average 306.1666666666667) internal successors, (1837), 6 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:50,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:27:50,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 477 [2025-02-06 09:27:50,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:27:54,506 INFO L124 PetriNetUnfolderBase]: 6422/24285 cut-off events. [2025-02-06 09:27:54,506 INFO L125 PetriNetUnfolderBase]: For 13652/13772 co-relation queries the response was YES. [2025-02-06 09:27:54,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52141 conditions, 24285 events. 6422/24285 cut-off events. For 13652/13772 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 250272 event pairs, 3870 based on Foata normal form. 0/22259 useless extension candidates. Maximal degree in co-relation 51507. Up to 12188 conditions per place. [2025-02-06 09:27:54,789 INFO L140 encePairwiseOnDemand]: 430/477 looper letters, 613 selfloop transitions, 166 changer transitions 0/1080 dead transitions. [2025-02-06 09:27:54,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 1080 transitions, 7109 flow [2025-02-06 09:27:54,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:27:54,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:27:54,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2166 transitions. [2025-02-06 09:27:54,795 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7568134171907757 [2025-02-06 09:27:54,795 INFO L175 Difference]: Start difference. First operand has 473 places, 875 transitions, 4309 flow. Second operand 6 states and 2166 transitions. [2025-02-06 09:27:54,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 1080 transitions, 7109 flow [2025-02-06 09:27:54,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 1080 transitions, 6597 flow, removed 256 selfloop flow, removed 0 redundant places. [2025-02-06 09:27:54,840 INFO L231 Difference]: Finished difference. Result has 483 places, 1040 transitions, 5715 flow [2025-02-06 09:27:54,841 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=477, PETRI_DIFFERENCE_MINUEND_FLOW=3797, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=875, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=829, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5715, PETRI_PLACES=483, PETRI_TRANSITIONS=1040} [2025-02-06 09:27:54,842 INFO L279 CegarLoopForPetriNet]: 451 programPoint places, 32 predicate places. [2025-02-06 09:27:54,842 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 1040 transitions, 5715 flow [2025-02-06 09:27:54,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 306.1666666666667) internal successors, (1837), 6 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:54,843 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:27:54,843 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:27:54,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 09:27:54,844 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-02-06 09:27:54,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:27:54,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1162219595, now seen corresponding path program 1 times [2025-02-06 09:27:54,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:27:54,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439174063] [2025-02-06 09:27:54,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:27:54,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:27:54,865 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-02-06 09:27:54,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-02-06 09:27:54,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:27:54,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:27:54,891 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:27:54,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-02-06 09:27:54,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-02-06 09:27:54,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:27:54,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:27:54,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:27:54,961 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:27:54,961 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2025-02-06 09:27:54,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2025-02-06 09:27:54,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2025-02-06 09:27:54,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2025-02-06 09:27:54,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2025-02-06 09:27:54,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2025-02-06 09:27:54,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2025-02-06 09:27:54,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2025-02-06 09:27:54,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2025-02-06 09:27:54,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2025-02-06 09:27:54,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2025-02-06 09:27:54,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2025-02-06 09:27:54,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2025-02-06 09:27:54,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2025-02-06 09:27:54,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2025-02-06 09:27:54,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2025-02-06 09:27:54,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2025-02-06 09:27:54,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2025-02-06 09:27:54,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2025-02-06 09:27:54,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2025-02-06 09:27:54,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2025-02-06 09:27:54,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2025-02-06 09:27:54,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2025-02-06 09:27:54,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2025-02-06 09:27:54,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2025-02-06 09:27:54,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2025-02-06 09:27:54,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2025-02-06 09:27:54,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2025-02-06 09:27:54,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2025-02-06 09:27:54,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2025-02-06 09:27:54,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2025-02-06 09:27:54,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2025-02-06 09:27:54,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2025-02-06 09:27:54,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2025-02-06 09:27:54,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2025-02-06 09:27:54,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2025-02-06 09:27:54,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2025-02-06 09:27:54,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2025-02-06 09:27:54,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2025-02-06 09:27:54,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2025-02-06 09:27:54,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 09:27:54,968 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-02-06 09:27:54,970 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:27:54,970 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 09:27:55,061 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 09:27:55,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 607 places, 645 transitions, 1306 flow [2025-02-06 09:27:55,364 INFO L124 PetriNetUnfolderBase]: 74/1120 cut-off events. [2025-02-06 09:27:55,365 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-06 09:27:55,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 1120 events. 74/1120 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5206 event pairs, 0 based on Foata normal form. 0/972 useless extension candidates. Maximal degree in co-relation 703. Up to 12 conditions per place. [2025-02-06 09:27:55,385 INFO L82 GeneralOperation]: Start removeDead. Operand has 607 places, 645 transitions, 1306 flow [2025-02-06 09:27:55,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 607 places, 645 transitions, 1306 flow [2025-02-06 09:27:55,411 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:27:55,412 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;@686ebdce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:27:55,412 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2025-02-06 09:27:55,421 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:27:55,422 INFO L124 PetriNetUnfolderBase]: 0/41 cut-off events. [2025-02-06 09:27:55,422 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:27:55,422 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:27:55,422 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:27:55,425 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:27:55,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:27:55,426 INFO L85 PathProgramCache]: Analyzing trace with hash -981537006, now seen corresponding path program 1 times [2025-02-06 09:27:55,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:27:55,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293846989] [2025-02-06 09:27:55,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:27:55,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:27:55,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-02-06 09:27:55,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-02-06 09:27:55,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:27:55,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:27:55,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:27:55,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:27:55,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293846989] [2025-02-06 09:27:55,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293846989] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:27:55,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:27:55,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:27:55,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838629679] [2025-02-06 09:27:55,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:27:55,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:27:55,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:27:55,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:27:55,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:27:56,387 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 406 out of 645 [2025-02-06 09:27:56,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 645 transitions, 1306 flow. Second operand has 6 states, 6 states have (on average 407.3333333333333) internal successors, (2444), 6 states have internal predecessors, (2444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:56,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:27:56,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 406 of 645 [2025-02-06 09:27:56,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand