./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.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/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.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 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:33:42,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:33:42,722 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:33:42,726 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:33:42,727 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:33:42,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:33:42,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:33:42,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:33:42,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:33:42,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:33:42,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:33:42,755 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:33:42,755 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:33:42,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:33:42,756 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:33:42,756 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:33:42,756 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:33:42,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:33:42,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:33:42,756 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:33:42,756 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:33:42,757 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:33:42,757 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:33:42,757 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:33:42,757 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:33:42,757 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:33:42,757 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:33:42,757 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:33:42,757 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:33:42,757 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:33:42,758 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:33:42,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:33:42,758 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:33:42,758 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:33:42,759 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:33:42,759 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:33:42,759 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:33:42,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:33:42,759 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:33:42,759 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:33:42,759 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:33:42,759 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:33:42,759 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 -> 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 [2025-02-08 05:33:43,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:33:43,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:33:43,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:33:43,019 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:33:43,019 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:33:43,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2025-02-08 05:33:44,225 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/447013f3b/eeb052199bc54c64a8174d67351a4352/FLAGd2d7f3de3 [2025-02-08 05:33:44,584 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:33:44,586 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2025-02-08 05:33:44,603 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/447013f3b/eeb052199bc54c64a8174d67351a4352/FLAGd2d7f3de3 [2025-02-08 05:33:44,795 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/447013f3b/eeb052199bc54c64a8174d67351a4352 [2025-02-08 05:33:44,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:33:44,799 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:33:44,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:33:44,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:33:44,804 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:33:44,805 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:33:44" (1/1) ... [2025-02-08 05:33:44,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eebe0a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:33:44, skipping insertion in model container [2025-02-08 05:33:44,806 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:33:44" (1/1) ... [2025-02-08 05:33:44,829 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:33:45,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:33:45,090 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:33:45,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:33:45,191 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:33:45,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:33:45 WrapperNode [2025-02-08 05:33:45,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:33:45,192 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:33:45,192 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:33:45,192 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:33:45,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:33:45" (1/1) ... [2025-02-08 05:33:45,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:33:45" (1/1) ... [2025-02-08 05:33:45,228 INFO L138 Inliner]: procedures = 165, calls = 24, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 121 [2025-02-08 05:33:45,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:33:45,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:33:45,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:33:45,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:33:45,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:33:45" (1/1) ... [2025-02-08 05:33:45,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:33:45" (1/1) ... [2025-02-08 05:33:45,238 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:33:45" (1/1) ... [2025-02-08 05:33:45,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:33:45" (1/1) ... [2025-02-08 05:33:45,245 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:33:45" (1/1) ... [2025-02-08 05:33:45,246 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:33:45" (1/1) ... [2025-02-08 05:33:45,248 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:33:45" (1/1) ... [2025-02-08 05:33:45,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:33:45" (1/1) ... [2025-02-08 05:33:45,252 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:33:45,253 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:33:45,253 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:33:45,253 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:33:45,254 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:33:45" (1/1) ... [2025-02-08 05:33:45,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:33:45,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:33:45,286 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 05:33:45,290 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 05:33:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2025-02-08 05:33:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2025-02-08 05:33:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 05:33:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:33:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:33:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 05:33:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:33:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:33:45,314 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 05:33:45,433 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:33:45,435 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:33:45,633 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L744-1: havoc main_#t~post16#1; [2025-02-08 05:33:45,633 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L744-2: main_~i~0#1 := 1 + main_#t~post16#1; [2025-02-08 05:33:45,634 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L744-3: main_#t~post16#1 := main_~i~0#1; [2025-02-08 05:33:45,634 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745: havoc main_#t~ret15#1; [2025-02-08 05:33:45,634 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-1: assume { :end_inline_pqueue_put } true;assume -2147483648 <= main_#t~ret15#1 && main_#t~ret15#1 <= 2147483647; [2025-02-08 05:33:45,634 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-2: havoc pqueue_put_#t~ret2#1, pqueue_put_#t~post3#1, pqueue_put_#t~nondet4#1, pqueue_put_#t~ret5#1; [2025-02-08 05:33:45,634 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-3: main_#t~ret15#1 := pqueue_put_#res#1; [2025-02-08 05:33:45,727 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L735: havoc #t~ret11#1; [2025-02-08 05:33:45,727 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L735-1: assume { :end_inline_pqueue_get } true;assume -2147483648 <= #t~ret11#1 && #t~ret11#1 <= 2147483647; [2025-02-08 05:33:45,728 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L735-2: havoc pqueue_get_#t~ret6#1, pqueue_get_#t~post7#1, pqueue_get_#t~nondet8#1, pqueue_get_#t~ret9#1, pqueue_get_#t~ret10#1, pqueue_get_~got~0#1; [2025-02-08 05:33:45,728 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L735-3: #t~ret11#1 := pqueue_get_#res#1; [2025-02-08 05:33:45,729 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:33:45,729 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:33:45,755 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:33:45,756 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:33:45,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:33:45 BoogieIcfgContainer [2025-02-08 05:33:45,756 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:33:45,758 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:33:45,759 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:33:45,763 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:33:45,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:33:44" (1/3) ... [2025-02-08 05:33:45,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ef62f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:33:45, skipping insertion in model container [2025-02-08 05:33:45,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:33:45" (2/3) ... [2025-02-08 05:33:45,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ef62f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:33:45, skipping insertion in model container [2025-02-08 05:33:45,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:33:45" (3/3) ... [2025-02-08 05:33:45,767 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2025-02-08 05:33:45,781 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:33:45,784 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_69-refine-protected-loop-interval_true.i that has 2 procedures, 132 locations, 1 initial locations, 3 loop locations, and 10 error locations. [2025-02-08 05:33:45,784 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:33:45,852 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:33:45,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 139 transitions, 282 flow [2025-02-08 05:33:45,953 INFO L124 PetriNetUnfolderBase]: 8/138 cut-off events. [2025-02-08 05:33:45,955 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:33:45,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 138 events. 8/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 276 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2025-02-08 05:33:45,962 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 139 transitions, 282 flow [2025-02-08 05:33:45,969 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 138 transitions, 279 flow [2025-02-08 05:33:45,978 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:33:45,992 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;@1fc02e69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:33:45,993 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2025-02-08 05:33:46,000 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:33:46,001 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-02-08 05:33:46,001 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:33:46,001 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:33:46,002 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] [2025-02-08 05:33:46,002 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-02-08 05:33:46,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:33:46,007 INFO L85 PathProgramCache]: Analyzing trace with hash -522111705, now seen corresponding path program 1 times [2025-02-08 05:33:46,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:33:46,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497801084] [2025-02-08 05:33:46,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:33:46,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:33:46,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-08 05:33:46,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 05:33:46,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:33:46,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:33:46,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:33:46,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:33:46,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497801084] [2025-02-08 05:33:46,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497801084] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:33:46,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:33:46,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:33:46,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533436837] [2025-02-08 05:33:46,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:33:46,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:33:46,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:33:46,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:33:46,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:33:46,378 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 139 [2025-02-08 05:33:46,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 138 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 05:33:46,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:33:46,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 139 [2025-02-08 05:33:46,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:33:46,548 INFO L124 PetriNetUnfolderBase]: 58/435 cut-off events. [2025-02-08 05:33:46,549 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:33:46,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 435 events. 58/435 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2313 event pairs, 45 based on Foata normal form. 30/399 useless extension candidates. Maximal degree in co-relation 503. Up to 110 conditions per place. [2025-02-08 05:33:46,557 INFO L140 encePairwiseOnDemand]: 130/139 looper letters, 19 selfloop transitions, 2 changer transitions 0/125 dead transitions. [2025-02-08 05:33:46,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 125 transitions, 295 flow [2025-02-08 05:33:46,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:33:46,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:33:46,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2025-02-08 05:33:46,574 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8513189448441247 [2025-02-08 05:33:46,577 INFO L175 Difference]: Start difference. First operand has 134 places, 138 transitions, 279 flow. Second operand 3 states and 355 transitions. [2025-02-08 05:33:46,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 125 transitions, 295 flow [2025-02-08 05:33:46,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 125 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:33:46,586 INFO L231 Difference]: Finished difference. Result has 127 places, 125 transitions, 256 flow [2025-02-08 05:33:46,589 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=127, PETRI_TRANSITIONS=125} [2025-02-08 05:33:46,594 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, -7 predicate places. [2025-02-08 05:33:46,595 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 125 transitions, 256 flow [2025-02-08 05:33:46,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 05:33:46,596 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:33:46,596 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:33:46,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:33:46,596 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-02-08 05:33:46,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:33:46,597 INFO L85 PathProgramCache]: Analyzing trace with hash 2113903493, now seen corresponding path program 1 times [2025-02-08 05:33:46,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:33:46,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215509969] [2025-02-08 05:33:46,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:33:46,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:33:46,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-08 05:33:46,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 05:33:46,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:33:46,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:33:46,727 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 05:33:46,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:33:46,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215509969] [2025-02-08 05:33:46,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215509969] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:33:46,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:33:46,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:33:46,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943847560] [2025-02-08 05:33:46,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:33:46,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:33:46,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:33:46,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:33:46,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:33:46,802 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 139 [2025-02-08 05:33:46,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 125 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 05:33:46,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:33:46,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 139 [2025-02-08 05:33:46,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:33:46,928 INFO L124 PetriNetUnfolderBase]: 146/668 cut-off events. [2025-02-08 05:33:46,929 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:33:46,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 990 conditions, 668 events. 146/668 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3869 event pairs, 64 based on Foata normal form. 0/590 useless extension candidates. Maximal degree in co-relation 958. Up to 230 conditions per place. [2025-02-08 05:33:46,934 INFO L140 encePairwiseOnDemand]: 116/139 looper letters, 35 selfloop transitions, 16 changer transitions 0/146 dead transitions. [2025-02-08 05:33:46,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 146 transitions, 400 flow [2025-02-08 05:33:46,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:33:46,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:33:46,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2025-02-08 05:33:46,938 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8657074340527577 [2025-02-08 05:33:46,938 INFO L175 Difference]: Start difference. First operand has 127 places, 125 transitions, 256 flow. Second operand 3 states and 361 transitions. [2025-02-08 05:33:46,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 146 transitions, 400 flow [2025-02-08 05:33:46,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 146 transitions, 396 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:33:46,945 INFO L231 Difference]: Finished difference. Result has 129 places, 141 transitions, 394 flow [2025-02-08 05:33:46,945 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=394, PETRI_PLACES=129, PETRI_TRANSITIONS=141} [2025-02-08 05:33:46,946 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, -5 predicate places. [2025-02-08 05:33:46,946 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 141 transitions, 394 flow [2025-02-08 05:33:46,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 05:33:46,947 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:33:46,947 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:33:46,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:33:46,947 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-02-08 05:33:46,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:33:46,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1002142528, now seen corresponding path program 1 times [2025-02-08 05:33:46,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:33:46,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020543703] [2025-02-08 05:33:46,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:33:46,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:33:46,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-02-08 05:33:46,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-02-08 05:33:46,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:33:46,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:33:47,069 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 05:33:47,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:33:47,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020543703] [2025-02-08 05:33:47,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020543703] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:33:47,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:33:47,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:33:47,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834101143] [2025-02-08 05:33:47,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:33:47,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:33:47,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:33:47,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:33:47,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:33:47,136 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 139 [2025-02-08 05:33:47,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 141 transitions, 394 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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 05:33:47,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:33:47,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 139 [2025-02-08 05:33:47,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:33:47,287 INFO L124 PetriNetUnfolderBase]: 178/849 cut-off events. [2025-02-08 05:33:47,287 INFO L125 PetriNetUnfolderBase]: For 247/266 co-relation queries the response was YES. [2025-02-08 05:33:47,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1512 conditions, 849 events. 178/849 cut-off events. For 247/266 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5341 event pairs, 82 based on Foata normal form. 8/751 useless extension candidates. Maximal degree in co-relation 1468. Up to 259 conditions per place. [2025-02-08 05:33:47,298 INFO L140 encePairwiseOnDemand]: 130/139 looper letters, 24 selfloop transitions, 15 changer transitions 2/153 dead transitions. [2025-02-08 05:33:47,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 153 transitions, 518 flow [2025-02-08 05:33:47,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:33:47,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:33:47,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 365 transitions. [2025-02-08 05:33:47,304 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8752997601918465 [2025-02-08 05:33:47,304 INFO L175 Difference]: Start difference. First operand has 129 places, 141 transitions, 394 flow. Second operand 3 states and 365 transitions. [2025-02-08 05:33:47,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 153 transitions, 518 flow [2025-02-08 05:33:47,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 153 transitions, 482 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:33:47,311 INFO L231 Difference]: Finished difference. Result has 131 places, 149 transitions, 470 flow [2025-02-08 05:33:47,311 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=131, PETRI_TRANSITIONS=149} [2025-02-08 05:33:47,312 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, -3 predicate places. [2025-02-08 05:33:47,312 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 149 transitions, 470 flow [2025-02-08 05:33:47,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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 05:33:47,313 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:33:47,313 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:33:47,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:33:47,313 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-02-08 05:33:47,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:33:47,314 INFO L85 PathProgramCache]: Analyzing trace with hash 345096711, now seen corresponding path program 1 times [2025-02-08 05:33:47,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:33:47,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909187371] [2025-02-08 05:33:47,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:33:47,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:33:47,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-08 05:33:47,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-08 05:33:47,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:33:47,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:33:47,527 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 05:33:47,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:33:47,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909187371] [2025-02-08 05:33:47,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909187371] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:33:47,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:33:47,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:33:47,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689194893] [2025-02-08 05:33:47,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:33:47,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:33:47,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:33:47,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:33:47,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:33:47,543 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 139 [2025-02-08 05:33:47,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 149 transitions, 470 flow. Second operand has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 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 05:33:47,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:33:47,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 139 [2025-02-08 05:33:47,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:33:47,579 INFO L124 PetriNetUnfolderBase]: 4/210 cut-off events. [2025-02-08 05:33:47,580 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2025-02-08 05:33:47,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 210 events. 4/210 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 516 event pairs, 0 based on Foata normal form. 2/198 useless extension candidates. Maximal degree in co-relation 257. Up to 34 conditions per place. [2025-02-08 05:33:47,581 INFO L140 encePairwiseOnDemand]: 134/139 looper letters, 3 selfloop transitions, 3 changer transitions 17/120 dead transitions. [2025-02-08 05:33:47,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 120 transitions, 320 flow [2025-02-08 05:33:47,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:33:47,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:33:47,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 379 transitions. [2025-02-08 05:33:47,584 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9088729016786571 [2025-02-08 05:33:47,584 INFO L175 Difference]: Start difference. First operand has 131 places, 149 transitions, 470 flow. Second operand 3 states and 379 transitions. [2025-02-08 05:33:47,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 120 transitions, 320 flow [2025-02-08 05:33:47,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 120 transitions, 278 flow, removed 19 selfloop flow, removed 2 redundant places. [2025-02-08 05:33:47,590 INFO L231 Difference]: Finished difference. Result has 123 places, 103 transitions, 232 flow [2025-02-08 05:33:47,590 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=123, PETRI_TRANSITIONS=103} [2025-02-08 05:33:47,591 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, -11 predicate places. [2025-02-08 05:33:47,591 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 103 transitions, 232 flow [2025-02-08 05:33:47,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 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 05:33:47,592 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:33:47,592 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:33:47,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:33:47,592 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-02-08 05:33:47,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:33:47,593 INFO L85 PathProgramCache]: Analyzing trace with hash 97867420, now seen corresponding path program 1 times [2025-02-08 05:33:47,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:33:47,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121289439] [2025-02-08 05:33:47,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:33:47,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:33:47,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-02-08 05:33:47,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-02-08 05:33:47,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:33:47,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:33:47,738 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 05:33:47,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:33:47,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121289439] [2025-02-08 05:33:47,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121289439] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:33:47,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:33:47,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:33:47,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771230515] [2025-02-08 05:33:47,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:33:47,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:33:47,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:33:47,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:33:47,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:33:47,762 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 139 [2025-02-08 05:33:47,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 103 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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 05:33:47,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:33:47,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 139 [2025-02-08 05:33:47,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:33:47,792 INFO L124 PetriNetUnfolderBase]: 2/115 cut-off events. [2025-02-08 05:33:47,792 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2025-02-08 05:33:47,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 115 events. 2/115 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 2/116 useless extension candidates. Maximal degree in co-relation 101. Up to 7 conditions per place. [2025-02-08 05:33:47,792 INFO L140 encePairwiseOnDemand]: 135/139 looper letters, 8 selfloop transitions, 2 changer transitions 9/103 dead transitions. [2025-02-08 05:33:47,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 103 transitions, 256 flow [2025-02-08 05:33:47,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:33:47,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:33:47,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2025-02-08 05:33:47,796 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8800959232613909 [2025-02-08 05:33:47,796 INFO L175 Difference]: Start difference. First operand has 123 places, 103 transitions, 232 flow. Second operand 3 states and 367 transitions. [2025-02-08 05:33:47,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 103 transitions, 256 flow [2025-02-08 05:33:47,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 103 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:33:47,802 INFO L231 Difference]: Finished difference. Result has 110 places, 94 transitions, 215 flow [2025-02-08 05:33:47,802 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=110, PETRI_TRANSITIONS=94} [2025-02-08 05:33:47,803 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, -24 predicate places. [2025-02-08 05:33:47,803 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 94 transitions, 215 flow [2025-02-08 05:33:47,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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 05:33:47,803 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:33:47,804 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:33:47,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 05:33:47,804 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-02-08 05:33:47,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:33:47,804 INFO L85 PathProgramCache]: Analyzing trace with hash -509871520, now seen corresponding path program 1 times [2025-02-08 05:33:47,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:33:47,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958012077] [2025-02-08 05:33:47,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:33:47,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:33:47,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-02-08 05:33:47,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-02-08 05:33:47,834 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:33:47,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:33:47,878 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 05:33:47,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:33:47,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958012077] [2025-02-08 05:33:47,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958012077] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:33:47,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:33:47,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:33:47,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532211954] [2025-02-08 05:33:47,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:33:47,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:33:47,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:33:47,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:33:47,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:33:47,931 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 139 [2025-02-08 05:33:47,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 94 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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 05:33:47,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:33:47,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 139 [2025-02-08 05:33:47,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:33:47,955 INFO L124 PetriNetUnfolderBase]: 6/110 cut-off events. [2025-02-08 05:33:47,956 INFO L125 PetriNetUnfolderBase]: For 17/18 co-relation queries the response was YES. [2025-02-08 05:33:47,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 110 events. 6/110 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 69 event pairs, 5 based on Foata normal form. 1/109 useless extension candidates. Maximal degree in co-relation 115. Up to 28 conditions per place. [2025-02-08 05:33:47,956 INFO L140 encePairwiseOnDemand]: 137/139 looper letters, 0 selfloop transitions, 0 changer transitions 93/93 dead transitions. [2025-02-08 05:33:47,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 93 transitions, 247 flow [2025-02-08 05:33:47,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:33:47,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:33:47,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2025-02-08 05:33:47,959 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8321342925659473 [2025-02-08 05:33:47,959 INFO L175 Difference]: Start difference. First operand has 110 places, 94 transitions, 215 flow. Second operand 3 states and 347 transitions. [2025-02-08 05:33:47,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 93 transitions, 247 flow [2025-02-08 05:33:47,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 93 transitions, 233 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-02-08 05:33:47,962 INFO L231 Difference]: Finished difference. Result has 99 places, 0 transitions, 0 flow [2025-02-08 05:33:47,962 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=99, PETRI_TRANSITIONS=0} [2025-02-08 05:33:47,963 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, -35 predicate places. [2025-02-08 05:33:47,965 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 0 transitions, 0 flow [2025-02-08 05:33:47,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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 05:33:47,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 17 remaining) [2025-02-08 05:33:47,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2025-02-08 05:33:47,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2025-02-08 05:33:47,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2025-02-08 05:33:47,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 17 remaining) [2025-02-08 05:33:47,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2025-02-08 05:33:47,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2025-02-08 05:33:47,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2025-02-08 05:33:47,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2025-02-08 05:33:47,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2025-02-08 05:33:47,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2025-02-08 05:33:47,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2025-02-08 05:33:47,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2025-02-08 05:33:47,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2025-02-08 05:33:47,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2025-02-08 05:33:47,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2025-02-08 05:33:47,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2025-02-08 05:33:47,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 05:33:47,970 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-02-08 05:33:47,975 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 05:33:47,975 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 05:33:47,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 05:33:47 BasicIcfg [2025-02-08 05:33:47,982 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 05:33:47,983 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 05:33:47,983 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 05:33:47,983 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 05:33:47,984 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:33:45" (3/4) ... [2025-02-08 05:33:47,985 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 05:33:47,988 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure worker [2025-02-08 05:33:47,990 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-02-08 05:33:47,992 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-08 05:33:47,992 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 05:33:47,993 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 05:33:48,054 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 05:33:48,054 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 05:33:48,054 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 05:33:48,055 INFO L158 Benchmark]: Toolchain (without parser) took 3256.38ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 75.2MB in the end (delta: 29.4MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2025-02-08 05:33:48,055 INFO L158 Benchmark]: CDTParser took 1.18ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:33:48,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.09ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 84.6MB in the end (delta: 19.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 05:33:48,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.27ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:33:48,056 INFO L158 Benchmark]: Boogie Preprocessor took 23.35ms. Allocated memory is still 142.6MB. Free memory was 82.5MB in the beginning and 81.6MB in the end (delta: 975.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:33:48,056 INFO L158 Benchmark]: IcfgBuilder took 503.30ms. Allocated memory is still 142.6MB. Free memory was 81.6MB in the beginning and 63.6MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:33:48,056 INFO L158 Benchmark]: TraceAbstraction took 2224.06ms. Allocated memory is still 142.6MB. Free memory was 62.6MB in the beginning and 80.8MB in the end (delta: -18.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:33:48,056 INFO L158 Benchmark]: Witness Printer took 71.19ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 75.2MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:33:48,058 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.09ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 84.6MB in the end (delta: 19.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.27ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.35ms. Allocated memory is still 142.6MB. Free memory was 82.5MB in the beginning and 81.6MB in the end (delta: 975.9kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 503.30ms. Allocated memory is still 142.6MB. Free memory was 81.6MB in the beginning and 63.6MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2224.06ms. Allocated memory is still 142.6MB. Free memory was 62.6MB in the beginning and 80.8MB in the end (delta: -18.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 71.19ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 75.2MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 703]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 719]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 196 locations, 17 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 282 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 295 IncrementalHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 43 mSDtfsCounter, 295 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=470occurred in iteration=3, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 329 NumberOfCodeBlocks, 329 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 395 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 05:33:48,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE