./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/07_rand.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 48c9605d 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/07_rand.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 205a9486f54af3fadf53566888e578b0d398a9ea9e18a2466103c3619a5ade13 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:10:04,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:10:04,508 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:10:04,512 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:10:04,513 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:10:04,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:10:04,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:10:04,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:10:04,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:10:04,535 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:10:04,536 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:10:04,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:10:04,536 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:10:04,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:10:04,536 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:10:04,536 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:10:04,536 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:10:04,536 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:10:04,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:10:04,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:10:04,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:10:04,537 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:10:04,537 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:10:04,537 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:10:04,537 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:10:04,537 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:10:04,537 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:10:04,537 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:10:04,537 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:10:04,538 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:10:04,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:10:04,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:10:04,538 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:10:04,538 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:10:04,538 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:10:04,538 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:10:04,538 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:10:04,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:10:04,538 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:10:04,538 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:10:04,538 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:10:04,538 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:10:04,538 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 -> 205a9486f54af3fadf53566888e578b0d398a9ea9e18a2466103c3619a5ade13 [2025-02-08 05:10:04,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:10:04,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:10:04,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:10:04,763 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:10:04,763 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:10:04,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/07_rand.i [2025-02-08 05:10:05,910 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/567cd05c3/ab02778dbc004c459be74b35c902a44d/FLAG616f48274 [2025-02-08 05:10:06,171 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:10:06,172 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/07_rand.i [2025-02-08 05:10:06,183 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/567cd05c3/ab02778dbc004c459be74b35c902a44d/FLAG616f48274 [2025-02-08 05:10:06,478 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/567cd05c3/ab02778dbc004c459be74b35c902a44d [2025-02-08 05:10:06,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:10:06,481 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:10:06,481 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:10:06,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:10:06,484 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:10:06,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f65a6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06, skipping insertion in model container [2025-02-08 05:10:06,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,513 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:10:06,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:10:06,706 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:10:06,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:10:06,755 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:10:06,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06 WrapperNode [2025-02-08 05:10:06,756 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:10:06,757 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:10:06,757 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:10:06,757 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:10:06,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,783 INFO L138 Inliner]: procedures = 173, calls = 21, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 161 [2025-02-08 05:10:06,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:10:06,783 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:10:06,784 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:10:06,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:10:06,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,791 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,795 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,797 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,799 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:10:06,799 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:10:06,799 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:10:06,799 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:10:06,800 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:10:06,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:10:06,825 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) [2025-02-08 05:10:06,827 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 [2025-02-08 05:10:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-08 05:10:06,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-08 05:10:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:10:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:10:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:10:06,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:10:06,847 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:10:06,944 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:10:06,946 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:10:07,161 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L727: havoc PseudoRandomUsingAtomic__threadmain_#t~ret8#1; [2025-02-08 05:10:07,161 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L727-1: PseudoRandomUsingAtomic__threadmain_~myrand~0#1 := PseudoRandomUsingAtomic__threadmain_#t~ret8#1; [2025-02-08 05:10:07,163 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L727-2: assume { :end_inline_PseudoRandomUsingAtomic_nextInt } true;assume -2147483648 <= PseudoRandomUsingAtomic__threadmain_#t~ret8#1 && PseudoRandomUsingAtomic__threadmain_#t~ret8#1 <= 2147483647; [2025-02-08 05:10:07,163 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L727-3: havoc PseudoRandomUsingAtomic_nextInt_#in~n#1; [2025-02-08 05:10:07,163 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L727-4: havoc PseudoRandomUsingAtomic_nextInt_#t~nondet5#1, PseudoRandomUsingAtomic_nextInt_#t~nondet6#1, PseudoRandomUsingAtomic_nextInt_~n#1, PseudoRandomUsingAtomic_nextInt_~read~0#1, PseudoRandomUsingAtomic_nextInt_~nexts~0#1, PseudoRandomUsingAtomic_nextInt_~nextInt_return~0#1; [2025-02-08 05:10:07,163 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L727-5: PseudoRandomUsingAtomic__threadmain_#t~ret8#1 := PseudoRandomUsingAtomic_nextInt_#res#1; [2025-02-08 05:10:07,163 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L17: assume false; [2025-02-08 05:10:07,163 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L17: assume !false; [2025-02-08 05:10:07,163 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L17-1: assume false; [2025-02-08 05:10:07,164 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L744: havoc PseudoRandomUsingAtomic__threadmain_#t~ret8#1, PseudoRandomUsingAtomic__threadmain_~myrand~0#1;assume { :end_inline_PseudoRandomUsingAtomic__threadmain } true; [2025-02-08 05:10:07,164 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L728: assume { :end_inline_reach_error } true;assume false; [2025-02-08 05:10:07,164 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L728-1: havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 05:10:07,164 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L728-2: assume !(PseudoRandomUsingAtomic__threadmain_~myrand~0#1 <= 10); [2025-02-08 05:10:07,164 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L728-2: assume !!(PseudoRandomUsingAtomic__threadmain_~myrand~0#1 <= 10); [2025-02-08 05:10:07,164 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L728-3: assume { :begin_inline_reach_error } true;havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 05:10:07,189 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:10:07,189 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:10:07,284 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:10:07,285 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:10:07,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:10:07 BoogieIcfgContainer [2025-02-08 05:10:07,286 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:10:07,287 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:10:07,287 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:10:07,290 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:10:07,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:10:06" (1/3) ... [2025-02-08 05:10:07,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf43e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:10:07, skipping insertion in model container [2025-02-08 05:10:07,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (2/3) ... [2025-02-08 05:10:07,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf43e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:10:07, skipping insertion in model container [2025-02-08 05:10:07,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:10:07" (3/3) ... [2025-02-08 05:10:07,292 INFO L128 eAbstractionObserver]: Analyzing ICFG 07_rand.i [2025-02-08 05:10:07,303 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:10:07,304 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 07_rand.i that has 2 procedures, 112 locations, 1 initial locations, 3 loop locations, and 16 error locations. [2025-02-08 05:10:07,304 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:10:07,347 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:10:07,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 119 transitions, 242 flow [2025-02-08 05:10:07,425 INFO L124 PetriNetUnfolderBase]: 7/126 cut-off events. [2025-02-08 05:10:07,427 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:10:07,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 126 events. 7/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 244 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 105. Up to 3 conditions per place. [2025-02-08 05:10:07,430 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 119 transitions, 242 flow [2025-02-08 05:10:07,433 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 119 transitions, 242 flow [2025-02-08 05:10:07,442 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:10:07,455 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;@1db2048, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:10:07,455 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2025-02-08 05:10:07,464 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:10:07,465 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2025-02-08 05:10:07,465 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:10:07,465 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:07,465 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:10:07,466 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-02-08 05:10:07,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:07,470 INFO L85 PathProgramCache]: Analyzing trace with hash -954431168, now seen corresponding path program 1 times [2025-02-08 05:10:07,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:07,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001692483] [2025-02-08 05:10:07,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:07,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:07,536 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 05:10:07,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 05:10:07,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:07,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:10:07,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:10:07,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:10:07,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001692483] [2025-02-08 05:10:07,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001692483] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:10:07,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:10:07,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 05:10:07,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729913422] [2025-02-08 05:10:07,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:10:07,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 05:10:07,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:10:07,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 05:10:07,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 05:10:07,624 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 119 [2025-02-08 05:10:07,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 119 transitions, 242 flow. Second operand has 2 states, 2 states have (on average 95.0) internal successors, (190), 2 states have internal predecessors, (190), 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) [2025-02-08 05:10:07,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:10:07,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 119 [2025-02-08 05:10:07,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:10:07,666 INFO L124 PetriNetUnfolderBase]: 2/98 cut-off events. [2025-02-08 05:10:07,666 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:10:07,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 98 events. 2/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 13/100 useless extension candidates. Maximal degree in co-relation 86. Up to 7 conditions per place. [2025-02-08 05:10:07,668 INFO L140 encePairwiseOnDemand]: 102/119 looper letters, 6 selfloop transitions, 0 changer transitions 0/95 dead transitions. [2025-02-08 05:10:07,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 95 transitions, 206 flow [2025-02-08 05:10:07,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 05:10:07,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-08 05:10:07,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 211 transitions. [2025-02-08 05:10:07,680 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8865546218487395 [2025-02-08 05:10:07,681 INFO L175 Difference]: Start difference. First operand has 115 places, 119 transitions, 242 flow. Second operand 2 states and 211 transitions. [2025-02-08 05:10:07,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 95 transitions, 206 flow [2025-02-08 05:10:07,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 95 transitions, 206 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:10:07,689 INFO L231 Difference]: Finished difference. Result has 97 places, 95 transitions, 194 flow [2025-02-08 05:10:07,691 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=194, PETRI_PLACES=97, PETRI_TRANSITIONS=95} [2025-02-08 05:10:07,695 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, -18 predicate places. [2025-02-08 05:10:07,695 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 95 transitions, 194 flow [2025-02-08 05:10:07,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 95.0) internal successors, (190), 2 states have internal predecessors, (190), 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) [2025-02-08 05:10:07,696 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:07,696 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] [2025-02-08 05:10:07,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:10:07,697 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-02-08 05:10:07,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:07,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1914664996, now seen corresponding path program 1 times [2025-02-08 05:10:07,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:07,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941564708] [2025-02-08 05:10:07,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:07,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:07,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 05:10:07,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 05:10:07,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:07,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:10:07,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:10:07,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:10:07,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941564708] [2025-02-08 05:10:07,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941564708] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:10:07,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:10:07,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:10:07,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616453895] [2025-02-08 05:10:07,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:10:07,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:10:07,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:10:07,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:10:07,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:10:07,785 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 119 [2025-02-08 05:10:07,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 95 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2025-02-08 05:10:07,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:10:07,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 119 [2025-02-08 05:10:07,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:10:07,821 INFO L124 PetriNetUnfolderBase]: 2/97 cut-off events. [2025-02-08 05:10:07,821 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:10:07,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 97 events. 2/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 109 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 108. Up to 5 conditions per place. [2025-02-08 05:10:07,822 INFO L140 encePairwiseOnDemand]: 116/119 looper letters, 7 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2025-02-08 05:10:07,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 94 transitions, 210 flow [2025-02-08 05:10:07,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:10:07,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:10:07,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2025-02-08 05:10:07,823 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7843137254901961 [2025-02-08 05:10:07,824 INFO L175 Difference]: Start difference. First operand has 97 places, 95 transitions, 194 flow. Second operand 3 states and 280 transitions. [2025-02-08 05:10:07,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 94 transitions, 210 flow [2025-02-08 05:10:07,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 94 transitions, 210 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:10:07,828 INFO L231 Difference]: Finished difference. Result has 98 places, 94 transitions, 196 flow [2025-02-08 05:10:07,828 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=98, PETRI_TRANSITIONS=94} [2025-02-08 05:10:07,829 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, -17 predicate places. [2025-02-08 05:10:07,829 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 94 transitions, 196 flow [2025-02-08 05:10:07,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2025-02-08 05:10:07,829 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:07,829 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:10:07,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:10:07,830 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-02-08 05:10:07,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:07,830 INFO L85 PathProgramCache]: Analyzing trace with hash -73457754, now seen corresponding path program 1 times [2025-02-08 05:10:07,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:07,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842631598] [2025-02-08 05:10:07,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:07,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:07,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 05:10:07,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 05:10:07,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:07,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:07,849 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:10:07,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 05:10:07,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 05:10:07,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:07,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:07,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:10:07,877 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:10:07,878 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2025-02-08 05:10:07,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2025-02-08 05:10:07,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2025-02-08 05:10:07,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2025-02-08 05:10:07,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2025-02-08 05:10:07,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2025-02-08 05:10:07,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2025-02-08 05:10:07,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2025-02-08 05:10:07,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2025-02-08 05:10:07,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2025-02-08 05:10:07,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2025-02-08 05:10:07,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2025-02-08 05:10:07,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2025-02-08 05:10:07,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2025-02-08 05:10:07,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2025-02-08 05:10:07,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2025-02-08 05:10:07,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2025-02-08 05:10:07,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2025-02-08 05:10:07,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2025-02-08 05:10:07,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2025-02-08 05:10:07,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2025-02-08 05:10:07,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2025-02-08 05:10:07,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2025-02-08 05:10:07,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2025-02-08 05:10:07,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2025-02-08 05:10:07,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2025-02-08 05:10:07,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2025-02-08 05:10:07,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2025-02-08 05:10:07,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2025-02-08 05:10:07,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2025-02-08 05:10:07,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2025-02-08 05:10:07,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2025-02-08 05:10:07,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2025-02-08 05:10:07,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:10:07,884 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 05:10:07,886 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:10:07,886 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-08 05:10:07,914 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:10:07,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 216 transitions, 442 flow [2025-02-08 05:10:07,952 INFO L124 PetriNetUnfolderBase]: 14/232 cut-off events. [2025-02-08 05:10:07,952 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 05:10:07,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 232 events. 14/232 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 813 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 201. Up to 3 conditions per place. [2025-02-08 05:10:07,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 207 places, 216 transitions, 442 flow [2025-02-08 05:10:07,956 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 216 transitions, 442 flow [2025-02-08 05:10:07,957 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:10:07,957 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;@1db2048, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:10:07,957 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2025-02-08 05:10:07,960 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:10:07,960 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2025-02-08 05:10:07,960 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:10:07,960 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:07,960 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:10:07,960 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-02-08 05:10:07,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:07,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1021579104, now seen corresponding path program 1 times [2025-02-08 05:10:07,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:07,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155636600] [2025-02-08 05:10:07,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:07,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:07,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 05:10:07,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 05:10:07,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:07,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:10:07,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:10:07,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:10:07,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155636600] [2025-02-08 05:10:07,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155636600] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:10:07,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:10:07,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 05:10:07,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962113851] [2025-02-08 05:10:07,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:10:07,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 05:10:07,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:10:07,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 05:10:07,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 05:10:07,986 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 216 [2025-02-08 05:10:07,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 216 transitions, 442 flow. Second operand has 2 states, 2 states have (on average 168.0) internal successors, (336), 2 states have internal predecessors, (336), 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) [2025-02-08 05:10:07,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:10:07,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 216 [2025-02-08 05:10:07,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:10:08,078 INFO L124 PetriNetUnfolderBase]: 46/660 cut-off events. [2025-02-08 05:10:08,078 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-02-08 05:10:08,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 756 conditions, 660 events. 46/660 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4011 event pairs, 30 based on Foata normal form. 112/676 useless extension candidates. Maximal degree in co-relation 617. Up to 73 conditions per place. [2025-02-08 05:10:08,084 INFO L140 encePairwiseOnDemand]: 183/216 looper letters, 12 selfloop transitions, 0 changer transitions 0/172 dead transitions. [2025-02-08 05:10:08,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 172 transitions, 378 flow [2025-02-08 05:10:08,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 05:10:08,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-08 05:10:08,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 379 transitions. [2025-02-08 05:10:08,090 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8773148148148148 [2025-02-08 05:10:08,090 INFO L175 Difference]: Start difference. First operand has 207 places, 216 transitions, 442 flow. Second operand 2 states and 379 transitions. [2025-02-08 05:10:08,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 172 transitions, 378 flow [2025-02-08 05:10:08,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 172 transitions, 378 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:10:08,093 INFO L231 Difference]: Finished difference. Result has 174 places, 172 transitions, 354 flow [2025-02-08 05:10:08,094 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=354, PETRI_PLACES=174, PETRI_TRANSITIONS=172} [2025-02-08 05:10:08,094 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, -33 predicate places. [2025-02-08 05:10:08,095 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 172 transitions, 354 flow [2025-02-08 05:10:08,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 168.0) internal successors, (336), 2 states have internal predecessors, (336), 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) [2025-02-08 05:10:08,095 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:08,096 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] [2025-02-08 05:10:08,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:10:08,096 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-02-08 05:10:08,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:08,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1810017924, now seen corresponding path program 1 times [2025-02-08 05:10:08,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:08,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267841998] [2025-02-08 05:10:08,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:08,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:08,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 05:10:08,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 05:10:08,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:08,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:10:08,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:10:08,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:10:08,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267841998] [2025-02-08 05:10:08,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267841998] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:10:08,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:10:08,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:10:08,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658374046] [2025-02-08 05:10:08,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:10:08,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:10:08,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:10:08,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:10:08,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:10:08,168 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 216 [2025-02-08 05:10:08,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 172 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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) [2025-02-08 05:10:08,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:10:08,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 216 [2025-02-08 05:10:08,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:10:08,306 INFO L124 PetriNetUnfolderBase]: 114/1177 cut-off events. [2025-02-08 05:10:08,306 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2025-02-08 05:10:08,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1409 conditions, 1177 events. 114/1177 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 8863 event pairs, 37 based on Foata normal form. 0/1013 useless extension candidates. Maximal degree in co-relation 1404. Up to 124 conditions per place. [2025-02-08 05:10:08,313 INFO L140 encePairwiseOnDemand]: 208/216 looper letters, 31 selfloop transitions, 6 changer transitions 0/189 dead transitions. [2025-02-08 05:10:08,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 189 transitions, 467 flow [2025-02-08 05:10:08,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:10:08,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:10:08,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2025-02-08 05:10:08,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7962962962962963 [2025-02-08 05:10:08,315 INFO L175 Difference]: Start difference. First operand has 174 places, 172 transitions, 354 flow. Second operand 3 states and 516 transitions. [2025-02-08 05:10:08,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 189 transitions, 467 flow [2025-02-08 05:10:08,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 189 transitions, 467 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:10:08,320 INFO L231 Difference]: Finished difference. Result has 178 places, 178 transitions, 406 flow [2025-02-08 05:10:08,321 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=406, PETRI_PLACES=178, PETRI_TRANSITIONS=178} [2025-02-08 05:10:08,322 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, -29 predicate places. [2025-02-08 05:10:08,323 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 178 transitions, 406 flow [2025-02-08 05:10:08,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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) [2025-02-08 05:10:08,323 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:08,323 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:10:08,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 05:10:08,323 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-02-08 05:10:08,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:08,324 INFO L85 PathProgramCache]: Analyzing trace with hash -132400753, now seen corresponding path program 1 times [2025-02-08 05:10:08,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:08,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9584156] [2025-02-08 05:10:08,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:08,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:08,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-08 05:10:08,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-08 05:10:08,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:08,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:08,339 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:10:08,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-08 05:10:08,347 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-08 05:10:08,349 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:08,349 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:08,357 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:10:08,357 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:10:08,357 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2025-02-08 05:10:08,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2025-02-08 05:10:08,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2025-02-08 05:10:08,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2025-02-08 05:10:08,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2025-02-08 05:10:08,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2025-02-08 05:10:08,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2025-02-08 05:10:08,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2025-02-08 05:10:08,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2025-02-08 05:10:08,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2025-02-08 05:10:08,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2025-02-08 05:10:08,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2025-02-08 05:10:08,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2025-02-08 05:10:08,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2025-02-08 05:10:08,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2025-02-08 05:10:08,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2025-02-08 05:10:08,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2025-02-08 05:10:08,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2025-02-08 05:10:08,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2025-02-08 05:10:08,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2025-02-08 05:10:08,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2025-02-08 05:10:08,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2025-02-08 05:10:08,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2025-02-08 05:10:08,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2025-02-08 05:10:08,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2025-02-08 05:10:08,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2025-02-08 05:10:08,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2025-02-08 05:10:08,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2025-02-08 05:10:08,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2025-02-08 05:10:08,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 05:10:08,362 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 05:10:08,363 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:10:08,363 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-08 05:10:08,403 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:10:08,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 299 places, 313 transitions, 644 flow [2025-02-08 05:10:08,438 INFO L124 PetriNetUnfolderBase]: 21/338 cut-off events. [2025-02-08 05:10:08,438 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-08 05:10:08,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 338 events. 21/338 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1469 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 297. Up to 4 conditions per place. [2025-02-08 05:10:08,443 INFO L82 GeneralOperation]: Start removeDead. Operand has 299 places, 313 transitions, 644 flow [2025-02-08 05:10:08,448 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 299 places, 313 transitions, 644 flow [2025-02-08 05:10:08,449 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:10:08,450 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;@1db2048, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:10:08,450 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2025-02-08 05:10:08,452 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:10:08,454 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2025-02-08 05:10:08,454 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:10:08,454 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:08,454 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:10:08,455 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-02-08 05:10:08,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:08,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1764268320, now seen corresponding path program 1 times [2025-02-08 05:10:08,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:08,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432615407] [2025-02-08 05:10:08,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:08,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:08,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 05:10:08,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 05:10:08,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:08,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:10:08,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:10:08,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:10:08,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432615407] [2025-02-08 05:10:08,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432615407] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:10:08,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:10:08,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 05:10:08,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619060982] [2025-02-08 05:10:08,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:10:08,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 05:10:08,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:10:08,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 05:10:08,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 05:10:08,474 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 313 [2025-02-08 05:10:08,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 313 transitions, 644 flow. Second operand has 2 states, 2 states have (on average 241.0) internal successors, (482), 2 states have internal predecessors, (482), 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) [2025-02-08 05:10:08,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:10:08,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 313 [2025-02-08 05:10:08,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:10:08,934 INFO L124 PetriNetUnfolderBase]: 492/4252 cut-off events. [2025-02-08 05:10:08,934 INFO L125 PetriNetUnfolderBase]: For 238/238 co-relation queries the response was YES. [2025-02-08 05:10:08,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5069 conditions, 4252 events. 492/4252 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 43875 event pairs, 390 based on Foata normal form. 913/4528 useless extension candidates. Maximal degree in co-relation 4098. Up to 649 conditions per place. [2025-02-08 05:10:08,966 INFO L140 encePairwiseOnDemand]: 264/313 looper letters, 18 selfloop transitions, 0 changer transitions 0/249 dead transitions. [2025-02-08 05:10:08,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 249 transitions, 552 flow [2025-02-08 05:10:08,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 05:10:08,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-08 05:10:08,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 547 transitions. [2025-02-08 05:10:08,968 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8738019169329073 [2025-02-08 05:10:08,968 INFO L175 Difference]: Start difference. First operand has 299 places, 313 transitions, 644 flow. Second operand 2 states and 547 transitions. [2025-02-08 05:10:08,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 249 transitions, 552 flow [2025-02-08 05:10:08,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 249 transitions, 550 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-02-08 05:10:08,971 INFO L231 Difference]: Finished difference. Result has 251 places, 249 transitions, 514 flow [2025-02-08 05:10:08,972 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=514, PETRI_PLACES=251, PETRI_TRANSITIONS=249} [2025-02-08 05:10:08,973 INFO L279 CegarLoopForPetriNet]: 299 programPoint places, -48 predicate places. [2025-02-08 05:10:08,973 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 249 transitions, 514 flow [2025-02-08 05:10:08,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 241.0) internal successors, (482), 2 states have internal predecessors, (482), 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) [2025-02-08 05:10:08,973 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:08,974 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] [2025-02-08 05:10:08,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 05:10:08,974 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-02-08 05:10:08,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:08,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1050190300, now seen corresponding path program 1 times [2025-02-08 05:10:08,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:08,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954606034] [2025-02-08 05:10:08,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:08,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:08,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 05:10:08,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 05:10:08,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:08,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:10:09,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:10:09,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:10:09,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954606034] [2025-02-08 05:10:09,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954606034] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:10:09,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:10:09,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:10:09,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424629805] [2025-02-08 05:10:09,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:10:09,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:10:09,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:10:09,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:10:09,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:10:09,034 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 313 [2025-02-08 05:10:09,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 249 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 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) [2025-02-08 05:10:09,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:10:09,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 313 [2025-02-08 05:10:09,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:10:10,227 INFO L124 PetriNetUnfolderBase]: 2403/14299 cut-off events. [2025-02-08 05:10:10,227 INFO L125 PetriNetUnfolderBase]: For 346/346 co-relation queries the response was YES. [2025-02-08 05:10:10,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18030 conditions, 14299 events. 2403/14299 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 184611 event pairs, 852 based on Foata normal form. 0/12251 useless extension candidates. Maximal degree in co-relation 18024. Up to 2052 conditions per place. [2025-02-08 05:10:10,317 INFO L140 encePairwiseOnDemand]: 301/313 looper letters, 47 selfloop transitions, 9 changer transitions 0/275 dead transitions. [2025-02-08 05:10:10,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 275 transitions, 688 flow [2025-02-08 05:10:10,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:10:10,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:10:10,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 743 transitions. [2025-02-08 05:10:10,319 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7912673056443025 [2025-02-08 05:10:10,319 INFO L175 Difference]: Start difference. First operand has 251 places, 249 transitions, 514 flow. Second operand 3 states and 743 transitions. [2025-02-08 05:10:10,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 275 transitions, 688 flow [2025-02-08 05:10:10,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 275 transitions, 688 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:10:10,324 INFO L231 Difference]: Finished difference. Result has 255 places, 258 transitions, 592 flow [2025-02-08 05:10:10,325 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=592, PETRI_PLACES=255, PETRI_TRANSITIONS=258} [2025-02-08 05:10:10,326 INFO L279 CegarLoopForPetriNet]: 299 programPoint places, -44 predicate places. [2025-02-08 05:10:10,326 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 258 transitions, 592 flow [2025-02-08 05:10:10,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 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) [2025-02-08 05:10:10,327 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:10,327 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] [2025-02-08 05:10:10,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 05:10:10,327 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-02-08 05:10:10,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:10,328 INFO L85 PathProgramCache]: Analyzing trace with hash -525696264, now seen corresponding path program 1 times [2025-02-08 05:10:10,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:10,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046247536] [2025-02-08 05:10:10,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:10,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:10,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-08 05:10:10,339 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 05:10:10,342 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:10,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:10:10,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:10:10,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:10:10,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046247536] [2025-02-08 05:10:10,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046247536] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:10:10,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:10:10,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:10:10,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997652178] [2025-02-08 05:10:10,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:10:10,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:10:10,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:10:10,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:10:10,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:10:10,426 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 313 [2025-02-08 05:10:10,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 258 transitions, 592 flow. Second operand has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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) [2025-02-08 05:10:10,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:10:10,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 313 [2025-02-08 05:10:10,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:10:12,729 INFO L124 PetriNetUnfolderBase]: 7713/31967 cut-off events. [2025-02-08 05:10:12,730 INFO L125 PetriNetUnfolderBase]: For 1058/1063 co-relation queries the response was YES. [2025-02-08 05:10:12,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44428 conditions, 31967 events. 7713/31967 cut-off events. For 1058/1063 co-relation queries the response was YES. Maximal size of possible extension queue 987. Compared 442006 event pairs, 5208 based on Foata normal form. 0/26724 useless extension candidates. Maximal degree in co-relation 44420. Up to 9527 conditions per place. [2025-02-08 05:10:13,062 INFO L140 encePairwiseOnDemand]: 301/313 looper letters, 47 selfloop transitions, 11 changer transitions 0/280 dead transitions. [2025-02-08 05:10:13,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 280 transitions, 762 flow [2025-02-08 05:10:13,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:10:13,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:10:13,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 725 transitions. [2025-02-08 05:10:13,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.77209797657082 [2025-02-08 05:10:13,065 INFO L175 Difference]: Start difference. First operand has 255 places, 258 transitions, 592 flow. Second operand 3 states and 725 transitions. [2025-02-08 05:10:13,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 280 transitions, 762 flow [2025-02-08 05:10:13,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 280 transitions, 744 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:10:13,077 INFO L231 Difference]: Finished difference. Result has 257 places, 268 transitions, 660 flow [2025-02-08 05:10:13,078 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=660, PETRI_PLACES=257, PETRI_TRANSITIONS=268} [2025-02-08 05:10:13,079 INFO L279 CegarLoopForPetriNet]: 299 programPoint places, -42 predicate places. [2025-02-08 05:10:13,079 INFO L471 AbstractCegarLoop]: Abstraction has has 257 places, 268 transitions, 660 flow [2025-02-08 05:10:13,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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) [2025-02-08 05:10:13,083 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:13,083 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:10:13,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 05:10:13,083 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-02-08 05:10:13,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:13,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1363307303, now seen corresponding path program 1 times [2025-02-08 05:10:13,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:13,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752789115] [2025-02-08 05:10:13,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:13,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:13,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-08 05:10:13,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-08 05:10:13,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:13,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:13,098 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:10:13,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-08 05:10:13,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-08 05:10:13,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:13,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:13,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:10:13,117 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:10:13,117 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2025-02-08 05:10:13,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2025-02-08 05:10:13,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2025-02-08 05:10:13,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2025-02-08 05:10:13,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2025-02-08 05:10:13,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2025-02-08 05:10:13,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2025-02-08 05:10:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2025-02-08 05:10:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2025-02-08 05:10:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2025-02-08 05:10:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2025-02-08 05:10:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2025-02-08 05:10:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2025-02-08 05:10:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2025-02-08 05:10:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2025-02-08 05:10:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2025-02-08 05:10:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2025-02-08 05:10:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2025-02-08 05:10:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2025-02-08 05:10:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2025-02-08 05:10:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2025-02-08 05:10:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2025-02-08 05:10:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2025-02-08 05:10:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2025-02-08 05:10:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2025-02-08 05:10:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2025-02-08 05:10:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2025-02-08 05:10:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2025-02-08 05:10:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2025-02-08 05:10:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2025-02-08 05:10:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2025-02-08 05:10:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2025-02-08 05:10:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2025-02-08 05:10:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2025-02-08 05:10:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2025-02-08 05:10:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2025-02-08 05:10:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2025-02-08 05:10:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2025-02-08 05:10:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2025-02-08 05:10:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2025-02-08 05:10:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2025-02-08 05:10:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2025-02-08 05:10:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2025-02-08 05:10:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2025-02-08 05:10:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2025-02-08 05:10:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2025-02-08 05:10:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2025-02-08 05:10:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2025-02-08 05:10:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2025-02-08 05:10:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2025-02-08 05:10:13,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2025-02-08 05:10:13,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2025-02-08 05:10:13,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2025-02-08 05:10:13,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2025-02-08 05:10:13,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2025-02-08 05:10:13,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2025-02-08 05:10:13,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2025-02-08 05:10:13,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2025-02-08 05:10:13,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2025-02-08 05:10:13,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2025-02-08 05:10:13,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2025-02-08 05:10:13,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2025-02-08 05:10:13,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2025-02-08 05:10:13,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2025-02-08 05:10:13,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2025-02-08 05:10:13,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 05:10:13,122 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-08 05:10:13,122 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:10:13,122 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-02-08 05:10:13,173 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:10:13,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 391 places, 410 transitions, 848 flow [2025-02-08 05:10:13,235 INFO L124 PetriNetUnfolderBase]: 28/444 cut-off events. [2025-02-08 05:10:13,236 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-08 05:10:13,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 444 events. 28/444 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2176 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 393. Up to 5 conditions per place. [2025-02-08 05:10:13,242 INFO L82 GeneralOperation]: Start removeDead. Operand has 391 places, 410 transitions, 848 flow [2025-02-08 05:10:13,248 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 391 places, 410 transitions, 848 flow [2025-02-08 05:10:13,249 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:10:13,249 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;@1db2048, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:10:13,249 INFO L334 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2025-02-08 05:10:13,251 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:10:13,251 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2025-02-08 05:10:13,251 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:10:13,251 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:13,251 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:10:13,251 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-02-08 05:10:13,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:13,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1186817344, now seen corresponding path program 1 times [2025-02-08 05:10:13,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:13,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987922104] [2025-02-08 05:10:13,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:13,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:13,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 05:10:13,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 05:10:13,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:13,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:10:13,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:10:13,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:10:13,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987922104] [2025-02-08 05:10:13,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987922104] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:10:13,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:10:13,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 05:10:13,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488637160] [2025-02-08 05:10:13,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:10:13,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 05:10:13,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:10:13,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 05:10:13,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 05:10:13,271 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 410 [2025-02-08 05:10:13,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 410 transitions, 848 flow. Second operand has 2 states, 2 states have (on average 314.0) internal successors, (628), 2 states have internal predecessors, (628), 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) [2025-02-08 05:10:13,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:10:13,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 410 [2025-02-08 05:10:13,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:10:15,987 INFO L124 PetriNetUnfolderBase]: 4250/26924 cut-off events. [2025-02-08 05:10:15,987 INFO L125 PetriNetUnfolderBase]: For 2401/2401 co-relation queries the response was YES. [2025-02-08 05:10:16,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33358 conditions, 26924 events. 4250/26924 cut-off events. For 2401/2401 co-relation queries the response was YES. Maximal size of possible extension queue 730. Compared 383899 event pairs, 3630 based on Foata normal form. 6982/29978 useless extension candidates. Maximal degree in co-relation 26779. Up to 5185 conditions per place. [2025-02-08 05:10:16,269 INFO L140 encePairwiseOnDemand]: 345/410 looper letters, 24 selfloop transitions, 0 changer transitions 0/326 dead transitions. [2025-02-08 05:10:16,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 326 transitions, 728 flow [2025-02-08 05:10:16,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 05:10:16,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-08 05:10:16,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 715 transitions. [2025-02-08 05:10:16,272 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8719512195121951 [2025-02-08 05:10:16,272 INFO L175 Difference]: Start difference. First operand has 391 places, 410 transitions, 848 flow. Second operand 2 states and 715 transitions. [2025-02-08 05:10:16,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 326 transitions, 728 flow [2025-02-08 05:10:16,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 326 transitions, 722 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-02-08 05:10:16,276 INFO L231 Difference]: Finished difference. Result has 328 places, 326 transitions, 674 flow [2025-02-08 05:10:16,276 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=674, PETRI_PLACES=328, PETRI_TRANSITIONS=326} [2025-02-08 05:10:16,277 INFO L279 CegarLoopForPetriNet]: 391 programPoint places, -63 predicate places. [2025-02-08 05:10:16,277 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 326 transitions, 674 flow [2025-02-08 05:10:16,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 314.0) internal successors, (628), 2 states have internal predecessors, (628), 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) [2025-02-08 05:10:16,278 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:16,278 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:10:16,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 05:10:16,278 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-02-08 05:10:16,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:16,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1929885444, now seen corresponding path program 1 times [2025-02-08 05:10:16,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:16,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151236047] [2025-02-08 05:10:16,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:16,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:16,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 05:10:16,288 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 05:10:16,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:16,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:10:16,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:10:16,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:10:16,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151236047] [2025-02-08 05:10:16,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151236047] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:10:16,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:10:16,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:10:16,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10230809] [2025-02-08 05:10:16,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:10:16,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:10:16,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:10:16,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:10:16,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:10:16,339 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 410 [2025-02-08 05:10:16,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 326 transitions, 674 flow. Second operand has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 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) [2025-02-08 05:10:16,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:10:16,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 410 [2025-02-08 05:10:16,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:10:30,440 INFO L124 PetriNetUnfolderBase]: 38999/166780 cut-off events. [2025-02-08 05:10:30,440 INFO L125 PetriNetUnfolderBase]: For 4012/4012 co-relation queries the response was YES. [2025-02-08 05:10:31,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220996 conditions, 166780 events. 38999/166780 cut-off events. For 4012/4012 co-relation queries the response was YES. Maximal size of possible extension queue 4758. Compared 2881060 event pairs, 15022 based on Foata normal form. 0/143263 useless extension candidates. Maximal degree in co-relation 220989. Up to 29309 conditions per place. [2025-02-08 05:10:32,575 INFO L140 encePairwiseOnDemand]: 394/410 looper letters, 63 selfloop transitions, 12 changer transitions 0/361 dead transitions. [2025-02-08 05:10:32,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 361 transitions, 909 flow [2025-02-08 05:10:32,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:10:32,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:10:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 970 transitions. [2025-02-08 05:10:32,589 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7886178861788617 [2025-02-08 05:10:32,589 INFO L175 Difference]: Start difference. First operand has 328 places, 326 transitions, 674 flow. Second operand 3 states and 970 transitions. [2025-02-08 05:10:32,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 361 transitions, 909 flow [2025-02-08 05:10:32,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 361 transitions, 909 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:10:32,602 INFO L231 Difference]: Finished difference. Result has 332 places, 338 transitions, 778 flow [2025-02-08 05:10:32,602 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=778, PETRI_PLACES=332, PETRI_TRANSITIONS=338} [2025-02-08 05:10:32,603 INFO L279 CegarLoopForPetriNet]: 391 programPoint places, -59 predicate places. [2025-02-08 05:10:32,603 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 338 transitions, 778 flow [2025-02-08 05:10:32,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 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) [2025-02-08 05:10:32,603 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:32,604 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] [2025-02-08 05:10:32,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 05:10:32,604 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-02-08 05:10:32,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:32,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1876142866, now seen corresponding path program 1 times [2025-02-08 05:10:32,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:32,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643998677] [2025-02-08 05:10:32,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:32,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:32,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-08 05:10:32,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 05:10:32,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:32,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:10:32,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:10:32,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:10:32,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643998677] [2025-02-08 05:10:32,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643998677] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:10:32,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:10:32,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:10:32,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112971937] [2025-02-08 05:10:32,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:10:32,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:10:32,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:10:32,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:10:32,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:10:32,675 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 410 [2025-02-08 05:10:32,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 338 transitions, 778 flow. Second operand has 3 states, 3 states have (on average 293.0) internal successors, (879), 3 states have internal predecessors, (879), 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) [2025-02-08 05:10:32,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:10:32,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 410 [2025-02-08 05:10:32,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand