./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a107795e01eed1ee79fba30cb5022ee32b5d5a3711e8a094ab0bb165fd3efa7a --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 13:03:47,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 13:03:47,667 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 13:03:47,672 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 13:03:47,673 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 13:03:47,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 13:03:47,698 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 13:03:47,699 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 13:03:47,699 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 13:03:47,699 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 13:03:47,700 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 13:03:47,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 13:03:47,701 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 13:03:47,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 13:03:47,701 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 13:03:47,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 13:03:47,702 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 13:03:47,702 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 13:03:47,702 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 13:03:47,702 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 13:03:47,702 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 13:03:47,702 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 13:03:47,702 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 13:03:47,702 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 13:03:47,702 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 13:03:47,703 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 13:03:47,703 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 13:03:47,703 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 13:03:47,703 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 13:03:47,703 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 13:03:47,703 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 13:03:47,703 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 13:03:47,704 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 13:03:47,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:03:47,704 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 13:03:47,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 13:03:47,704 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 13:03:47,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 13:03:47,704 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 13:03:47,704 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 13:03:47,704 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 13:03:47,704 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 13:03:47,705 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> a107795e01eed1ee79fba30cb5022ee32b5d5a3711e8a094ab0bb165fd3efa7a [2025-02-06 13:03:47,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 13:03:47,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 13:03:47,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 13:03:47,997 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 13:03:47,997 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 13:03:47,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2025-02-06 13:03:49,347 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b4831a38a/7a746180341e41b6bddf7c2896544eb6/FLAGa4d356a52 [2025-02-06 13:03:49,638 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 13:03:49,639 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2025-02-06 13:03:49,648 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b4831a38a/7a746180341e41b6bddf7c2896544eb6/FLAGa4d356a52 [2025-02-06 13:03:49,666 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b4831a38a/7a746180341e41b6bddf7c2896544eb6 [2025-02-06 13:03:49,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 13:03:49,672 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 13:03:49,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 13:03:49,674 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 13:03:49,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 13:03:49,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:03:49" (1/1) ... [2025-02-06 13:03:49,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@736f61e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:03:49, skipping insertion in model container [2025-02-06 13:03:49,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:03:49" (1/1) ... [2025-02-06 13:03:49,704 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 13:03:49,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:03:49,891 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 13:03:49,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:03:49,938 INFO L204 MainTranslator]: Completed translation [2025-02-06 13:03:49,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:03:49 WrapperNode [2025-02-06 13:03:49,939 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 13:03:49,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 13:03:49,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 13:03:49,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 13:03:49,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:03:49" (1/1) ... [2025-02-06 13:03:49,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:03:49" (1/1) ... [2025-02-06 13:03:49,989 INFO L138 Inliner]: procedures = 22, calls = 23, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 225 [2025-02-06 13:03:49,989 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 13:03:49,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 13:03:49,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 13:03:49,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 13:03:49,998 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:03:49" (1/1) ... [2025-02-06 13:03:49,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:03:49" (1/1) ... [2025-02-06 13:03:50,003 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:03:49" (1/1) ... [2025-02-06 13:03:50,021 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 13:03:50,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:03:49" (1/1) ... [2025-02-06 13:03:50,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:03:49" (1/1) ... [2025-02-06 13:03:50,028 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:03:49" (1/1) ... [2025-02-06 13:03:50,030 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:03:49" (1/1) ... [2025-02-06 13:03:50,031 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:03:49" (1/1) ... [2025-02-06 13:03:50,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:03:49" (1/1) ... [2025-02-06 13:03:50,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 13:03:50,038 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 13:03:50,041 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 13:03:50,041 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 13:03:50,042 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:03:49" (1/1) ... [2025-02-06 13:03:50,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:03:50,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:03:50,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 13:03:50,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 13:03:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 13:03:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 13:03:50,098 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 13:03:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 13:03:50,098 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 13:03:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-06 13:03:50,098 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-06 13:03:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-06 13:03:50,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-06 13:03:50,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 13:03:50,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-06 13:03:50,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-06 13:03:50,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-02-06 13:03:50,100 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-02-06 13:03:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 13:03:50,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 13:03:50,101 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 13:03:50,193 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 13:03:50,194 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 13:03:50,523 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 13:03:50,523 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 13:03:50,728 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 13:03:50,730 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 13:03:50,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:03:50 BoogieIcfgContainer [2025-02-06 13:03:50,731 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 13:03:50,734 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 13:03:50,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 13:03:50,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 13:03:50,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 01:03:49" (1/3) ... [2025-02-06 13:03:50,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b06e0ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:03:50, skipping insertion in model container [2025-02-06 13:03:50,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:03:49" (2/3) ... [2025-02-06 13:03:50,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b06e0ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:03:50, skipping insertion in model container [2025-02-06 13:03:50,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:03:50" (3/3) ... [2025-02-06 13:03:50,742 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-barrier-loop.wvr.c [2025-02-06 13:03:50,757 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 13:03:50,758 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-barrier-loop.wvr.c that has 7 procedures, 97 locations, 1 initial locations, 4 loop locations, and 2 error locations. [2025-02-06 13:03:50,758 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 13:03:50,873 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2025-02-06 13:03:50,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions, 294 flow [2025-02-06 13:03:50,966 INFO L124 PetriNetUnfolderBase]: 12/102 cut-off events. [2025-02-06 13:03:50,969 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-06 13:03:50,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 102 events. 12/102 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 241 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 95. Up to 3 conditions per place. [2025-02-06 13:03:50,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 114 transitions, 294 flow [2025-02-06 13:03:50,980 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 101 transitions, 250 flow [2025-02-06 13:03:50,991 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 13:03:51,000 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=None, 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;@a3da825, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 13:03:51,000 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2025-02-06 13:03:51,024 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 13:03:51,025 INFO L124 PetriNetUnfolderBase]: 12/98 cut-off events. [2025-02-06 13:03:51,025 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-06 13:03:51,025 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:03:51,027 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] [2025-02-06 13:03:51,027 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2025-02-06 13:03:51,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:03:51,034 INFO L85 PathProgramCache]: Analyzing trace with hash 660586204, now seen corresponding path program 1 times [2025-02-06 13:03:51,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:03:51,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744082266] [2025-02-06 13:03:51,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:03:51,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:03:51,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-06 13:03:51,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-06 13:03:51,170 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:03:51,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:03:51,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:03:51,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:03:51,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744082266] [2025-02-06 13:03:51,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744082266] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:03:51,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:03:51,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 13:03:51,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181813688] [2025-02-06 13:03:51,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:03:51,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 13:03:51,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:03:51,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 13:03:51,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 13:03:51,329 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 118 [2025-02-06 13:03:51,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 101 transitions, 250 flow. Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:03:51,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:03:51,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 118 [2025-02-06 13:03:51,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand