./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -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 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:27:25,183 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:27:25,231 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:27:25,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:27:25,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:27:25,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:27:25,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:27:25,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:27:25,250 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:27:25,251 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:27:25,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:27:25,251 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:27:25,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:27:25,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:27:25,251 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:27:25,251 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:27:25,251 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:27:25,251 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:27:25,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:27:25,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:27:25,251 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:27:25,251 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:27:25,251 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:27:25,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:27:25,252 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:27:25,252 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:27:25,252 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:27:25,252 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 -> 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f [2025-02-08 08:27:25,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:27:25,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:27:25,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:27:25,476 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:27:25,476 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:27:25,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:27:26,603 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/00f63c8cd/4c3b216f59904a399c369880b03151fd/FLAG4c136516f [2025-02-08 08:27:26,837 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:27:26,837 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:27:26,846 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/00f63c8cd/4c3b216f59904a399c369880b03151fd/FLAG4c136516f [2025-02-08 08:27:27,164 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/00f63c8cd/4c3b216f59904a399c369880b03151fd [2025-02-08 08:27:27,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:27:27,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:27:27,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:27:27,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:27:27,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:27:27,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:27:27" (1/1) ... [2025-02-08 08:27:27,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b13d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:27, skipping insertion in model container [2025-02-08 08:27:27,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:27:27" (1/1) ... [2025-02-08 08:27:27,190 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:27:27,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:27:27,394 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:27:27,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:27:27,447 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:27:27,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:27 WrapperNode [2025-02-08 08:27:27,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:27:27,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:27:27,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:27:27,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:27:27,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:27" (1/1) ... [2025-02-08 08:27:27,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:27" (1/1) ... [2025-02-08 08:27:27,473 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2025-02-08 08:27:27,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:27:27,473 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:27:27,473 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:27:27,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:27:27,480 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:27" (1/1) ... [2025-02-08 08:27:27,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:27" (1/1) ... [2025-02-08 08:27:27,485 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:27" (1/1) ... [2025-02-08 08:27:27,501 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]. [2025-02-08 08:27:27,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:27" (1/1) ... [2025-02-08 08:27:27,502 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:27" (1/1) ... [2025-02-08 08:27:27,505 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:27" (1/1) ... [2025-02-08 08:27:27,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:27" (1/1) ... [2025-02-08 08:27:27,506 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:27" (1/1) ... [2025-02-08 08:27:27,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:27" (1/1) ... [2025-02-08 08:27:27,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:27:27,509 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:27:27,509 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:27:27,509 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:27:27,510 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:27" (1/1) ... [2025-02-08 08:27:27,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:27:27,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:27:27,532 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 08:27:27,534 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 08:27:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 08:27:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:27:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 08:27:27,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 08:27:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 08:27:27,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 08:27:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 08:27:27,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 08:27:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-08 08:27:27,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-08 08:27:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:27:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 08:27:27,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:27:27,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:27:27,551 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 08:27:27,629 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:27:27,630 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:27:27,809 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:27:27,810 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:27:27,899 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:27:27,900 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:27:27,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:27:27 BoogieIcfgContainer [2025-02-08 08:27:27,901 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:27:27,902 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:27:27,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:27:27,906 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:27:27,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:27:27" (1/3) ... [2025-02-08 08:27:27,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369c2f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:27:27, skipping insertion in model container [2025-02-08 08:27:27,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:27" (2/3) ... [2025-02-08 08:27:27,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369c2f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:27:27, skipping insertion in model container [2025-02-08 08:27:27,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:27:27" (3/3) ... [2025-02-08 08:27:27,909 INFO L128 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:27:27,918 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:27:27,919 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 5 procedures, 51 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:27:27,919 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:27:27,962 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:27:27,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 52 transitions, 120 flow [2025-02-08 08:27:28,021 INFO L124 PetriNetUnfolderBase]: 2/48 cut-off events. [2025-02-08 08:27:28,023 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:27:28,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 48 events. 2/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2025-02-08 08:27:28,027 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 52 transitions, 120 flow [2025-02-08 08:27:28,029 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 47 transitions, 106 flow [2025-02-08 08:27:28,037 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:27:28,048 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;@61a8b3cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:27:28,048 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-08 08:27:28,061 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:27:28,061 INFO L124 PetriNetUnfolderBase]: 2/45 cut-off events. [2025-02-08 08:27:28,061 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:27:28,061 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:27:28,062 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:27:28,062 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:27:28,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:27:28,066 INFO L85 PathProgramCache]: Analyzing trace with hash 808173887, now seen corresponding path program 1 times [2025-02-08 08:27:28,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:27:28,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90872097] [2025-02-08 08:27:28,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:27:28,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:27:28,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:27:28,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:27:28,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:27:28,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:27:28,286 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 08:27:28,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:27:28,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90872097] [2025-02-08 08:27:28,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90872097] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:27:28,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:27:28,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:27:28,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902457235] [2025-02-08 08:27:28,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:27:28,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:27:28,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:27:28,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:27:28,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:27:28,324 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2025-02-08 08:27:28,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 08:27:28,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:27:28,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2025-02-08 08:27:28,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:27:31,360 INFO L124 PetriNetUnfolderBase]: 38795/54903 cut-off events. [2025-02-08 08:27:31,360 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2025-02-08 08:27:31,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106403 conditions, 54903 events. 38795/54903 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 1697. Compared 360796 event pairs, 38795 based on Foata normal form. 3888/58755 useless extension candidates. Maximal degree in co-relation 106391. Up to 50976 conditions per place. [2025-02-08 08:27:31,737 INFO L140 encePairwiseOnDemand]: 48/52 looper letters, 34 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2025-02-08 08:27:31,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 43 transitions, 170 flow [2025-02-08 08:27:31,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:27:31,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:27:31,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-02-08 08:27:31,750 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2025-02-08 08:27:31,752 INFO L175 Difference]: Start difference. First operand has 58 places, 47 transitions, 106 flow. Second operand 3 states and 72 transitions. [2025-02-08 08:27:31,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 43 transitions, 170 flow [2025-02-08 08:27:31,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 166 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 08:27:31,764 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2025-02-08 08:27:31,766 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2025-02-08 08:27:31,771 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, -4 predicate places. [2025-02-08 08:27:31,771 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2025-02-08 08:27:31,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 08:27:31,772 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:27:31,772 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:27:31,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:27:31,773 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:27:31,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:27:31,775 INFO L85 PathProgramCache]: Analyzing trace with hash 808175056, now seen corresponding path program 1 times [2025-02-08 08:27:31,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:27:31,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354907279] [2025-02-08 08:27:31,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:27:31,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:27:31,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:27:31,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:27:31,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:27:31,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:27:32,071 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 08:27:32,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:27:32,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354907279] [2025-02-08 08:27:32,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354907279] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:27:32,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:27:32,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:27:32,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870598827] [2025-02-08 08:27:32,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:27:32,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:27:32,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:27:32,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:27:32,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:27:32,074 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2025-02-08 08:27:32,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 08:27:32,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:27:32,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2025-02-08 08:27:32,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:27:34,685 INFO L124 PetriNetUnfolderBase]: 50444/69103 cut-off events. [2025-02-08 08:27:34,686 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:27:34,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136134 conditions, 69103 events. 50444/69103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2167. Compared 436358 event pairs, 34953 based on Foata normal form. 0/67806 useless extension candidates. Maximal degree in co-relation 136128. Up to 45334 conditions per place. [2025-02-08 08:27:35,019 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 44 selfloop transitions, 5 changer transitions 74/129 dead transitions. [2025-02-08 08:27:35,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 129 transitions, 520 flow [2025-02-08 08:27:35,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:27:35,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:27:35,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 213 transitions. [2025-02-08 08:27:35,022 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5120192307692307 [2025-02-08 08:27:35,022 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 8 states and 213 transitions. [2025-02-08 08:27:35,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 129 transitions, 520 flow [2025-02-08 08:27:35,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 129 transitions, 519 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:27:35,026 INFO L231 Difference]: Finished difference. Result has 64 places, 45 transitions, 148 flow [2025-02-08 08:27:35,027 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=148, PETRI_PLACES=64, PETRI_TRANSITIONS=45} [2025-02-08 08:27:35,027 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2025-02-08 08:27:35,027 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 45 transitions, 148 flow [2025-02-08 08:27:35,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 08:27:35,028 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:27:35,028 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:27:35,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:27:35,028 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:27:35,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:27:35,029 INFO L85 PathProgramCache]: Analyzing trace with hash 247427805, now seen corresponding path program 1 times [2025-02-08 08:27:35,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:27:35,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035654192] [2025-02-08 08:27:35,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:27:35,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:27:35,042 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:27:35,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:27:35,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:27:35,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:27:35,330 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 08:27:35,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:27:35,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035654192] [2025-02-08 08:27:35,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035654192] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:27:35,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:27:35,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:27:35,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894867734] [2025-02-08 08:27:35,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:27:35,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:27:35,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:27:35,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:27:35,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:27:35,335 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2025-02-08 08:27:35,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 45 transitions, 148 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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 08:27:35,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:27:35,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2025-02-08 08:27:35,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:27:37,475 INFO L124 PetriNetUnfolderBase]: 39726/54742 cut-off events. [2025-02-08 08:27:37,476 INFO L125 PetriNetUnfolderBase]: For 44854/44854 co-relation queries the response was YES. [2025-02-08 08:27:37,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139592 conditions, 54742 events. 39726/54742 cut-off events. For 44854/44854 co-relation queries the response was YES. Maximal size of possible extension queue 1665. Compared 336268 event pairs, 5997 based on Foata normal form. 1290/55996 useless extension candidates. Maximal degree in co-relation 139580. Up to 37153 conditions per place. [2025-02-08 08:27:37,827 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 55 selfloop transitions, 3 changer transitions 73/137 dead transitions. [2025-02-08 08:27:37,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 137 transitions, 706 flow [2025-02-08 08:27:37,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:27:37,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:27:37,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 206 transitions. [2025-02-08 08:27:37,829 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5659340659340659 [2025-02-08 08:27:37,829 INFO L175 Difference]: Start difference. First operand has 64 places, 45 transitions, 148 flow. Second operand 7 states and 206 transitions. [2025-02-08 08:27:37,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 137 transitions, 706 flow [2025-02-08 08:27:38,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 137 transitions, 693 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-02-08 08:27:38,672 INFO L231 Difference]: Finished difference. Result has 66 places, 45 transitions, 158 flow [2025-02-08 08:27:38,672 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=158, PETRI_PLACES=66, PETRI_TRANSITIONS=45} [2025-02-08 08:27:38,673 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 8 predicate places. [2025-02-08 08:27:38,673 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 45 transitions, 158 flow [2025-02-08 08:27:38,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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 08:27:38,673 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:27:38,673 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:27:38,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:27:38,674 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:27:38,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:27:38,674 INFO L85 PathProgramCache]: Analyzing trace with hash -692721681, now seen corresponding path program 1 times [2025-02-08 08:27:38,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:27:38,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207924659] [2025-02-08 08:27:38,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:27:38,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:27:38,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:27:38,691 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:27:38,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:27:38,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:27:38,826 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 08:27:38,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:27:38,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207924659] [2025-02-08 08:27:38,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207924659] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:27:38,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:27:38,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:27:38,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086539184] [2025-02-08 08:27:38,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:27:38,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:27:38,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:27:38,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:27:38,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:27:38,829 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2025-02-08 08:27:38,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 45 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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 08:27:38,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:27:38,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2025-02-08 08:27:38,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:27:42,537 INFO L124 PetriNetUnfolderBase]: 61943/84004 cut-off events. [2025-02-08 08:27:42,537 INFO L125 PetriNetUnfolderBase]: For 83040/83040 co-relation queries the response was YES. [2025-02-08 08:27:42,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218383 conditions, 84004 events. 61943/84004 cut-off events. For 83040/83040 co-relation queries the response was YES. Maximal size of possible extension queue 2305. Compared 513674 event pairs, 11379 based on Foata normal form. 2155/86157 useless extension candidates. Maximal degree in co-relation 218367. Up to 30481 conditions per place. [2025-02-08 08:27:43,040 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 98 selfloop transitions, 12 changer transitions 138/254 dead transitions. [2025-02-08 08:27:43,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 254 transitions, 1299 flow [2025-02-08 08:27:43,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:27:43,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 08:27:43,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 392 transitions. [2025-02-08 08:27:43,042 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5798816568047337 [2025-02-08 08:27:43,042 INFO L175 Difference]: Start difference. First operand has 66 places, 45 transitions, 158 flow. Second operand 13 states and 392 transitions. [2025-02-08 08:27:43,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 254 transitions, 1299 flow [2025-02-08 08:27:45,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 254 transitions, 1259 flow, removed 16 selfloop flow, removed 6 redundant places. [2025-02-08 08:27:45,792 INFO L231 Difference]: Finished difference. Result has 79 places, 52 transitions, 291 flow [2025-02-08 08:27:45,792 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=291, PETRI_PLACES=79, PETRI_TRANSITIONS=52} [2025-02-08 08:27:45,792 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 21 predicate places. [2025-02-08 08:27:45,792 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 52 transitions, 291 flow [2025-02-08 08:27:45,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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 08:27:45,793 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:27:45,793 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] [2025-02-08 08:27:45,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:27:45,793 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:27:45,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:27:45,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1048853234, now seen corresponding path program 1 times [2025-02-08 08:27:45,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:27:45,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049167899] [2025-02-08 08:27:45,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:27:45,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:27:45,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:27:45,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:27:45,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:27:45,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:27:45,926 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 08:27:45,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:27:45,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049167899] [2025-02-08 08:27:45,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049167899] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:27:45,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:27:45,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:27:45,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974857016] [2025-02-08 08:27:45,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:27:45,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:27:45,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:27:45,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:27:45,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:27:45,931 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2025-02-08 08:27:45,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 52 transitions, 291 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 08:27:45,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:27:45,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2025-02-08 08:27:45,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:27:51,514 INFO L124 PetriNetUnfolderBase]: 84623/112751 cut-off events. [2025-02-08 08:27:51,515 INFO L125 PetriNetUnfolderBase]: For 439067/439067 co-relation queries the response was YES. [2025-02-08 08:27:52,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362010 conditions, 112751 events. 84623/112751 cut-off events. For 439067/439067 co-relation queries the response was YES. Maximal size of possible extension queue 2833. Compared 687605 event pairs, 5494 based on Foata normal form. 1775/114481 useless extension candidates. Maximal degree in co-relation 361987. Up to 50421 conditions per place. [2025-02-08 08:27:52,290 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 109 selfloop transitions, 15 changer transitions 134/264 dead transitions. [2025-02-08 08:27:52,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 264 transitions, 1812 flow [2025-02-08 08:27:52,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:27:52,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 08:27:52,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 388 transitions. [2025-02-08 08:27:52,292 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5739644970414202 [2025-02-08 08:27:52,292 INFO L175 Difference]: Start difference. First operand has 79 places, 52 transitions, 291 flow. Second operand 13 states and 388 transitions. [2025-02-08 08:27:52,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 264 transitions, 1812 flow [2025-02-08 08:27:56,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 264 transitions, 1491 flow, removed 152 selfloop flow, removed 9 redundant places. [2025-02-08 08:27:56,258 INFO L231 Difference]: Finished difference. Result has 85 places, 62 transitions, 431 flow [2025-02-08 08:27:56,258 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=431, PETRI_PLACES=85, PETRI_TRANSITIONS=62} [2025-02-08 08:27:56,259 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 27 predicate places. [2025-02-08 08:27:56,259 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 62 transitions, 431 flow [2025-02-08 08:27:56,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 08:27:56,259 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:27:56,259 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] [2025-02-08 08:27:56,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:27:56,259 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:27:56,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:27:56,260 INFO L85 PathProgramCache]: Analyzing trace with hash 766764844, now seen corresponding path program 1 times [2025-02-08 08:27:56,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:27:56,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308166992] [2025-02-08 08:27:56,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:27:56,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:27:56,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:27:56,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:27:56,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:27:56,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:27:56,374 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 08:27:56,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:27:56,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308166992] [2025-02-08 08:27:56,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308166992] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:27:56,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:27:56,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:27:56,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712493770] [2025-02-08 08:27:56,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:27:56,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:27:56,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:27:56,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:27:56,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:27:56,377 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2025-02-08 08:27:56,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 62 transitions, 431 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 08:27:56,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:27:56,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2025-02-08 08:27:56,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:28:04,200 INFO L124 PetriNetUnfolderBase]: 111460/149260 cut-off events. [2025-02-08 08:28:04,201 INFO L125 PetriNetUnfolderBase]: For 593309/593309 co-relation queries the response was YES. [2025-02-08 08:28:04,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479520 conditions, 149260 events. 111460/149260 cut-off events. For 593309/593309 co-relation queries the response was YES. Maximal size of possible extension queue 3611. Compared 977575 event pairs, 7247 based on Foata normal form. 2500/151746 useless extension candidates. Maximal degree in co-relation 479493. Up to 73028 conditions per place. [2025-02-08 08:28:05,235 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 135 selfloop transitions, 19 changer transitions 146/306 dead transitions. [2025-02-08 08:28:05,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 306 transitions, 2378 flow [2025-02-08 08:28:05,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:28:05,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 08:28:05,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 396 transitions. [2025-02-08 08:28:05,237 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5857988165680473 [2025-02-08 08:28:05,237 INFO L175 Difference]: Start difference. First operand has 85 places, 62 transitions, 431 flow. Second operand 13 states and 396 transitions. [2025-02-08 08:28:05,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 306 transitions, 2378 flow [2025-02-08 08:28:09,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 306 transitions, 2109 flow, removed 124 selfloop flow, removed 9 redundant places. [2025-02-08 08:28:09,904 INFO L231 Difference]: Finished difference. Result has 91 places, 76 transitions, 682 flow [2025-02-08 08:28:09,904 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=682, PETRI_PLACES=91, PETRI_TRANSITIONS=76} [2025-02-08 08:28:09,904 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 33 predicate places. [2025-02-08 08:28:09,905 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 76 transitions, 682 flow [2025-02-08 08:28:09,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 08:28:09,905 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:28:09,905 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] [2025-02-08 08:28:09,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:28:09,905 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:28:09,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:28:09,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1282236144, now seen corresponding path program 1 times [2025-02-08 08:28:09,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:28:09,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51424942] [2025-02-08 08:28:09,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:28:09,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:28:09,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:28:09,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:28:09,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:28:09,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:28:10,011 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 08:28:10,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:28:10,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51424942] [2025-02-08 08:28:10,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51424942] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:28:10,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:28:10,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:28:10,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374491901] [2025-02-08 08:28:10,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:28:10,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:28:10,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:28:10,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:28:10,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:28:10,014 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2025-02-08 08:28:10,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 76 transitions, 682 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 08:28:10,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:28:10,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2025-02-08 08:28:10,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:28:17,488 INFO L124 PetriNetUnfolderBase]: 100082/136175 cut-off events. [2025-02-08 08:28:17,488 INFO L125 PetriNetUnfolderBase]: For 510156/510167 co-relation queries the response was YES. [2025-02-08 08:28:18,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433237 conditions, 136175 events. 100082/136175 cut-off events. For 510156/510167 co-relation queries the response was YES. Maximal size of possible extension queue 3207. Compared 882910 event pairs, 42426 based on Foata normal form. 2450/138619 useless extension candidates. Maximal degree in co-relation 433206. Up to 105118 conditions per place. [2025-02-08 08:28:18,506 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 93 selfloop transitions, 12 changer transitions 94/205 dead transitions. [2025-02-08 08:28:18,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 205 transitions, 2085 flow [2025-02-08 08:28:18,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:28:18,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:28:18,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 206 transitions. [2025-02-08 08:28:18,507 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5659340659340659 [2025-02-08 08:28:18,507 INFO L175 Difference]: Start difference. First operand has 91 places, 76 transitions, 682 flow. Second operand 7 states and 206 transitions. [2025-02-08 08:28:18,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 205 transitions, 2085 flow [2025-02-08 08:28:24,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 205 transitions, 1879 flow, removed 97 selfloop flow, removed 9 redundant places. [2025-02-08 08:28:24,013 INFO L231 Difference]: Finished difference. Result has 85 places, 76 transitions, 653 flow [2025-02-08 08:28:24,014 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=653, PETRI_PLACES=85, PETRI_TRANSITIONS=76} [2025-02-08 08:28:24,014 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 27 predicate places. [2025-02-08 08:28:24,014 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 76 transitions, 653 flow [2025-02-08 08:28:24,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 08:28:24,014 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:28:24,014 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:28:24,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:28:24,014 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:28:24,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:28:24,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1898001271, now seen corresponding path program 1 times [2025-02-08 08:28:24,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:28:24,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17929153] [2025-02-08 08:28:24,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:28:24,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:28:24,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:28:24,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:28:24,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:28:24,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:28:24,111 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 08:28:24,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:28:24,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17929153] [2025-02-08 08:28:24,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17929153] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:28:24,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:28:24,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:28:24,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237354407] [2025-02-08 08:28:24,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:28:24,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:28:24,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:28:24,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:28:24,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:28:24,114 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2025-02-08 08:28:24,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 76 transitions, 653 flow. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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 08:28:24,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:28:24,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2025-02-08 08:28:24,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand