./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i --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/pthread-wmm/safe016_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 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:49:15,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:49:15,831 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:49:15,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:49:15,840 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:49:15,856 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:49:15,856 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:49:15,856 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:49:15,857 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:49:15,857 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:49:15,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:49:15,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:49:15,857 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:49:15,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:49:15,857 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:49:15,857 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:49:15,857 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:49:15,857 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:49:15,858 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:49:15,858 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:49:15,858 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:49:15,858 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:49:15,858 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:49:15,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:49:15,858 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:49:15,858 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:49:15,858 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:49:15,858 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:49:15,858 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:49:15,858 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:49:15,858 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:49:15,858 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:49:15,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:49:15,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:49:15,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:49:15,859 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:49:15,859 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:49:15,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:49:15,859 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:49:15,859 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:49:15,859 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:49:15,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:49:15,859 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 -> 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 [2025-02-06 12:49:16,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:49:16,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:49:16,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:49:16,069 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:49:16,069 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:49:16,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-06 12:49:17,333 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/52d09f8f9/c6a6b7c6e5694f8c858612278b437e40/FLAG43d413639 [2025-02-06 12:49:17,710 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:49:17,710 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-06 12:49:17,719 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/52d09f8f9/c6a6b7c6e5694f8c858612278b437e40/FLAG43d413639 [2025-02-06 12:49:17,940 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/52d09f8f9/c6a6b7c6e5694f8c858612278b437e40 [2025-02-06 12:49:17,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:49:17,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:49:17,944 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:49:17,944 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:49:17,947 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:49:17,947 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:49:17" (1/1) ... [2025-02-06 12:49:17,949 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ea0041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:49:17, skipping insertion in model container [2025-02-06 12:49:17,949 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:49:17" (1/1) ... [2025-02-06 12:49:17,969 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:49:18,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:49:18,176 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:49:18,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:49:18,252 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:49:18,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:49:18 WrapperNode [2025-02-06 12:49:18,253 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:49:18,254 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:49:18,254 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:49:18,254 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:49:18,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:49:18" (1/1) ... [2025-02-06 12:49:18,266 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:49:18" (1/1) ... [2025-02-06 12:49:18,281 INFO L138 Inliner]: procedures = 176, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2025-02-06 12:49:18,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:49:18,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:49:18,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:49:18,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:49:18,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:49:18" (1/1) ... [2025-02-06 12:49:18,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:49:18" (1/1) ... [2025-02-06 12:49:18,291 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:49:18" (1/1) ... [2025-02-06 12:49:18,302 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 12:49:18,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:49:18" (1/1) ... [2025-02-06 12:49:18,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:49:18" (1/1) ... [2025-02-06 12:49:18,306 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:49:18" (1/1) ... [2025-02-06 12:49:18,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:49:18" (1/1) ... [2025-02-06 12:49:18,307 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:49:18" (1/1) ... [2025-02-06 12:49:18,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:49:18" (1/1) ... [2025-02-06 12:49:18,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:49:18,310 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:49:18,310 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:49:18,310 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:49:18,311 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:49:18" (1/1) ... [2025-02-06 12:49:18,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:49:18,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:49:18,347 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 12:49:18,350 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 12:49:18,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:49:18,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:49:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 12:49:18,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 12:49:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 12:49:18,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 12:49:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 12:49:18,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 12:49:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-06 12:49:18,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-06 12:49:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:49:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:49:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:49:18,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:49:18,370 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 12:49:18,469 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:49:18,470 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:49:18,605 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:49:18,606 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:49:18,694 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:49:18,694 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:49:18,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:49:18 BoogieIcfgContainer [2025-02-06 12:49:18,695 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:49:18,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:49:18,697 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:49:18,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:49:18,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:49:17" (1/3) ... [2025-02-06 12:49:18,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f3498b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:49:18, skipping insertion in model container [2025-02-06 12:49:18,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:49:18" (2/3) ... [2025-02-06 12:49:18,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f3498b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:49:18, skipping insertion in model container [2025-02-06 12:49:18,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:49:18" (3/3) ... [2025-02-06 12:49:18,703 INFO L128 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-06 12:49:18,713 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:49:18,714 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 5 procedures, 49 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 12:49:18,714 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:49:18,763 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:49:18,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 116 flow [2025-02-06 12:49:18,814 INFO L124 PetriNetUnfolderBase]: 2/46 cut-off events. [2025-02-06 12:49:18,816 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:49:18,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 2/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2025-02-06 12:49:18,818 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 50 transitions, 116 flow [2025-02-06 12:49:18,820 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 45 transitions, 102 flow [2025-02-06 12:49:18,824 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:49:18,831 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;@7479bcba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:49:18,831 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-06 12:49:18,840 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:49:18,840 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2025-02-06 12:49:18,840 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:49:18,841 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:49:18,841 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:49:18,841 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)] === [2025-02-06 12:49:18,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:49:18,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2033685441, now seen corresponding path program 1 times [2025-02-06 12:49:18,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:49:18,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703082434] [2025-02-06 12:49:18,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:49:18,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:49:18,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:49:18,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:49:18,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:49:18,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:49:19,070 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 12:49:19,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:49:19,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703082434] [2025-02-06 12:49:19,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703082434] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:49:19,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:49:19,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:49:19,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006311136] [2025-02-06 12:49:19,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:49:19,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:49:19,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:49:19,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:49:19,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:49:19,096 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 12:49:19,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 102 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) [2025-02-06 12:49:19,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:49:19,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 12:49:19,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:49:21,532 INFO L124 PetriNetUnfolderBase]: 26557/37849 cut-off events. [2025-02-06 12:49:21,533 INFO L125 PetriNetUnfolderBase]: For 178/178 co-relation queries the response was YES. [2025-02-06 12:49:21,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73379 conditions, 37849 events. 26557/37849 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 1279. Compared 243333 event pairs, 26557 based on Foata normal form. 2700/40474 useless extension candidates. Maximal degree in co-relation 73367. Up to 35090 conditions per place. [2025-02-06 12:49:21,892 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 32 selfloop transitions, 1 changer transitions 1/41 dead transitions. [2025-02-06 12:49:21,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 41 transitions, 162 flow [2025-02-06 12:49:21,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:49:21,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:49:21,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2025-02-06 12:49:21,904 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2025-02-06 12:49:21,906 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 102 flow. Second operand 3 states and 70 transitions. [2025-02-06 12:49:21,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 41 transitions, 162 flow [2025-02-06 12:49:21,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 41 transitions, 158 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 12:49:21,920 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 90 flow [2025-02-06 12:49:21,922 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2025-02-06 12:49:21,927 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2025-02-06 12:49:21,927 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 90 flow [2025-02-06 12:49:21,928 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) [2025-02-06 12:49:21,928 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:49:21,929 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:49:21,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:49:21,929 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)] === [2025-02-06 12:49:21,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:49:21,931 INFO L85 PathProgramCache]: Analyzing trace with hash -2033684691, now seen corresponding path program 1 times [2025-02-06 12:49:21,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:49:21,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219658235] [2025-02-06 12:49:21,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:49:21,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:49:21,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:49:21,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:49:21,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:49:21,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:49:22,249 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 12:49:22,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:49:22,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219658235] [2025-02-06 12:49:22,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219658235] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:49:22,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:49:22,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:49:22,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128091995] [2025-02-06 12:49:22,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:49:22,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:49:22,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:49:22,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:49:22,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:49:22,254 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 12:49:22,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 90 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) [2025-02-06 12:49:22,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:49:22,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 12:49:22,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:49:26,286 INFO L124 PetriNetUnfolderBase]: 63538/86218 cut-off events. [2025-02-06 12:49:26,287 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:49:26,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171343 conditions, 86218 events. 63538/86218 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2555. Compared 545102 event pairs, 16349 based on Foata normal form. 0/84456 useless extension candidates. Maximal degree in co-relation 171337. Up to 31940 conditions per place. [2025-02-06 12:49:26,567 INFO L140 encePairwiseOnDemand]: 39/50 looper letters, 56 selfloop transitions, 7 changer transitions 115/184 dead transitions. [2025-02-06 12:49:26,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 184 transitions, 740 flow [2025-02-06 12:49:26,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 12:49:26,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 12:49:26,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 279 transitions. [2025-02-06 12:49:26,569 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.62 [2025-02-06 12:49:26,569 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 90 flow. Second operand 9 states and 279 transitions. [2025-02-06 12:49:26,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 184 transitions, 740 flow [2025-02-06 12:49:26,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 184 transitions, 739 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:49:26,574 INFO L231 Difference]: Finished difference. Result has 66 places, 45 transitions, 185 flow [2025-02-06 12:49:26,574 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=185, PETRI_PLACES=66, PETRI_TRANSITIONS=45} [2025-02-06 12:49:26,575 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 10 predicate places. [2025-02-06 12:49:26,575 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 45 transitions, 185 flow [2025-02-06 12:49:26,575 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) [2025-02-06 12:49:26,575 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:49:26,575 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:49:26,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:49:26,575 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)] === [2025-02-06 12:49:26,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:49:26,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1303763828, now seen corresponding path program 1 times [2025-02-06 12:49:26,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:49:26,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744763552] [2025-02-06 12:49:26,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:49:26,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:49:26,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 12:49:26,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 12:49:26,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:49:26,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:49:26,700 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 12:49:26,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:49:26,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744763552] [2025-02-06 12:49:26,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744763552] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:49:26,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:49:26,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:49:26,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325292537] [2025-02-06 12:49:26,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:49:26,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:49:26,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:49:26,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:49:26,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:49:26,704 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 12:49:26,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 45 transitions, 185 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) [2025-02-06 12:49:26,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:49:26,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 12:49:26,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:49:30,066 INFO L124 PetriNetUnfolderBase]: 49367/67551 cut-off events. [2025-02-06 12:49:30,067 INFO L125 PetriNetUnfolderBase]: For 91549/91551 co-relation queries the response was YES. [2025-02-06 12:49:30,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189801 conditions, 67551 events. 49367/67551 cut-off events. For 91549/91551 co-relation queries the response was YES. Maximal size of possible extension queue 1980. Compared 423727 event pairs, 4810 based on Foata normal form. 1634/69120 useless extension candidates. Maximal degree in co-relation 189786. Up to 26979 conditions per place. [2025-02-06 12:49:30,484 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 73 selfloop transitions, 8 changer transitions 106/193 dead transitions. [2025-02-06 12:49:30,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 193 transitions, 1137 flow [2025-02-06 12:49:30,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:49:30,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:49:30,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 290 transitions. [2025-02-06 12:49:30,486 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.58 [2025-02-06 12:49:30,486 INFO L175 Difference]: Start difference. First operand has 66 places, 45 transitions, 185 flow. Second operand 10 states and 290 transitions. [2025-02-06 12:49:30,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 193 transitions, 1137 flow [2025-02-06 12:49:31,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 193 transitions, 1025 flow, removed 27 selfloop flow, removed 4 redundant places. [2025-02-06 12:49:31,009 INFO L231 Difference]: Finished difference. Result has 73 places, 49 transitions, 245 flow [2025-02-06 12:49:31,010 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=245, PETRI_PLACES=73, PETRI_TRANSITIONS=49} [2025-02-06 12:49:31,010 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2025-02-06 12:49:31,010 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 49 transitions, 245 flow [2025-02-06 12:49:31,010 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) [2025-02-06 12:49:31,010 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:49:31,011 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:49:31,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:49:31,011 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)] === [2025-02-06 12:49:31,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:49:31,011 INFO L85 PathProgramCache]: Analyzing trace with hash 183762732, now seen corresponding path program 1 times [2025-02-06 12:49:31,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:49:31,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288812706] [2025-02-06 12:49:31,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:49:31,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:49:31,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 12:49:31,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 12:49:31,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:49:31,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:49:31,191 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 12:49:31,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:49:31,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288812706] [2025-02-06 12:49:31,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288812706] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:49:31,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:49:31,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:49:31,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135061861] [2025-02-06 12:49:31,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:49:31,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:49:31,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:49:31,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:49:31,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:49:31,194 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 12:49:31,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 49 transitions, 245 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) [2025-02-06 12:49:31,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:49:31,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 12:49:31,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:49:34,846 INFO L124 PetriNetUnfolderBase]: 47002/64320 cut-off events. [2025-02-06 12:49:34,846 INFO L125 PetriNetUnfolderBase]: For 150286/150300 co-relation queries the response was YES. [2025-02-06 12:49:35,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193981 conditions, 64320 events. 47002/64320 cut-off events. For 150286/150300 co-relation queries the response was YES. Maximal size of possible extension queue 1821. Compared 399997 event pairs, 9155 based on Foata normal form. 1432/65746 useless extension candidates. Maximal degree in co-relation 193959. Up to 27929 conditions per place. [2025-02-06 12:49:35,523 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 79 selfloop transitions, 16 changer transitions 102/203 dead transitions. [2025-02-06 12:49:35,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 203 transitions, 1333 flow [2025-02-06 12:49:35,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:49:35,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:49:35,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 290 transitions. [2025-02-06 12:49:35,530 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.58 [2025-02-06 12:49:35,530 INFO L175 Difference]: Start difference. First operand has 73 places, 49 transitions, 245 flow. Second operand 10 states and 290 transitions. [2025-02-06 12:49:35,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 203 transitions, 1333 flow [2025-02-06 12:49:36,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 203 transitions, 1286 flow, removed 21 selfloop flow, removed 3 redundant places. [2025-02-06 12:49:36,537 INFO L231 Difference]: Finished difference. Result has 82 places, 60 transitions, 435 flow [2025-02-06 12:49:36,538 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=435, PETRI_PLACES=82, PETRI_TRANSITIONS=60} [2025-02-06 12:49:36,538 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 26 predicate places. [2025-02-06 12:49:36,538 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 60 transitions, 435 flow [2025-02-06 12:49:36,538 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) [2025-02-06 12:49:36,538 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:49:36,538 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] [2025-02-06 12:49:36,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:49:36,538 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)] === [2025-02-06 12:49:36,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:49:36,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1170178059, now seen corresponding path program 1 times [2025-02-06 12:49:36,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:49:36,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94914996] [2025-02-06 12:49:36,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:49:36,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:49:36,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 12:49:36,548 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 12:49:36,548 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:49:36,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:49:36,643 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 12:49:36,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:49:36,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94914996] [2025-02-06 12:49:36,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94914996] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:49:36,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:49:36,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:49:36,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803394924] [2025-02-06 12:49:36,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:49:36,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:49:36,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:49:36,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:49:36,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:49:36,647 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 12:49:36,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 60 transitions, 435 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) [2025-02-06 12:49:36,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:49:36,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 12:49:36,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:49:40,735 INFO L124 PetriNetUnfolderBase]: 43345/59234 cut-off events. [2025-02-06 12:49:40,735 INFO L125 PetriNetUnfolderBase]: For 193944/193944 co-relation queries the response was YES. [2025-02-06 12:49:40,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194414 conditions, 59234 events. 43345/59234 cut-off events. For 193944/193944 co-relation queries the response was YES. Maximal size of possible extension queue 1537. Compared 361358 event pairs, 10200 based on Foata normal form. 1080/60301 useless extension candidates. Maximal degree in co-relation 194384. Up to 24762 conditions per place. [2025-02-06 12:49:41,166 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 87 selfloop transitions, 18 changer transitions 92/203 dead transitions. [2025-02-06 12:49:41,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 203 transitions, 1454 flow [2025-02-06 12:49:41,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:49:41,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:49:41,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 286 transitions. [2025-02-06 12:49:41,168 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.572 [2025-02-06 12:49:41,168 INFO L175 Difference]: Start difference. First operand has 82 places, 60 transitions, 435 flow. Second operand 10 states and 286 transitions. [2025-02-06 12:49:41,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 203 transitions, 1454 flow [2025-02-06 12:49:42,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 203 transitions, 1394 flow, removed 30 selfloop flow, removed 4 redundant places. [2025-02-06 12:49:42,646 INFO L231 Difference]: Finished difference. Result has 90 places, 65 transitions, 563 flow [2025-02-06 12:49:42,647 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=563, PETRI_PLACES=90, PETRI_TRANSITIONS=65} [2025-02-06 12:49:42,649 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 34 predicate places. [2025-02-06 12:49:42,649 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 65 transitions, 563 flow [2025-02-06 12:49:42,649 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) [2025-02-06 12:49:42,649 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:49:42,649 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] [2025-02-06 12:49:42,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:49:42,650 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)] === [2025-02-06 12:49:42,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:49:42,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1643831293, now seen corresponding path program 1 times [2025-02-06 12:49:42,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:49:42,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675680592] [2025-02-06 12:49:42,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:49:42,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:49:42,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 12:49:42,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 12:49:42,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:49:42,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:49:42,803 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 12:49:42,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:49:42,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675680592] [2025-02-06 12:49:42,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675680592] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:49:42,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:49:42,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:49:42,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620288434] [2025-02-06 12:49:42,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:49:42,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 12:49:42,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:49:42,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 12:49:42,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:49:42,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 12:49:42,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 65 transitions, 563 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) [2025-02-06 12:49:42,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:49:42,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 12:49:42,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:49:48,501 INFO L124 PetriNetUnfolderBase]: 63649/86275 cut-off events. [2025-02-06 12:49:48,502 INFO L125 PetriNetUnfolderBase]: For 344310/344336 co-relation queries the response was YES. [2025-02-06 12:49:49,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294355 conditions, 86275 events. 63649/86275 cut-off events. For 344310/344336 co-relation queries the response was YES. Maximal size of possible extension queue 2362. Compared 530980 event pairs, 7112 based on Foata normal form. 1149/87371 useless extension candidates. Maximal degree in co-relation 294318. Up to 32704 conditions per place. [2025-02-06 12:49:49,190 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 89 selfloop transitions, 19 changer transitions 105/219 dead transitions. [2025-02-06 12:49:49,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 219 transitions, 2111 flow [2025-02-06 12:49:49,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 12:49:49,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 12:49:49,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 256 transitions. [2025-02-06 12:49:49,192 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5688888888888889 [2025-02-06 12:49:49,192 INFO L175 Difference]: Start difference. First operand has 90 places, 65 transitions, 563 flow. Second operand 9 states and 256 transitions. [2025-02-06 12:49:49,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 219 transitions, 2111 flow [2025-02-06 12:49:51,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 219 transitions, 2037 flow, removed 34 selfloop flow, removed 7 redundant places. [2025-02-06 12:49:51,738 INFO L231 Difference]: Finished difference. Result has 91 places, 65 transitions, 605 flow [2025-02-06 12:49:51,738 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=605, PETRI_PLACES=91, PETRI_TRANSITIONS=65} [2025-02-06 12:49:51,739 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 35 predicate places. [2025-02-06 12:49:51,739 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 65 transitions, 605 flow [2025-02-06 12:49:51,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2025-02-06 12:49:51,739 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:49:51,739 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] [2025-02-06 12:49:51,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 12:49:51,739 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)] === [2025-02-06 12:49:51,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:49:51,741 INFO L85 PathProgramCache]: Analyzing trace with hash -916592217, now seen corresponding path program 1 times [2025-02-06 12:49:51,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:49:51,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550546802] [2025-02-06 12:49:51,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:49:51,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:49:51,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 12:49:51,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 12:49:51,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:49:51,758 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:49:51,904 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 12:49:51,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:49:51,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550546802] [2025-02-06 12:49:51,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550546802] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:49:51,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:49:51,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:49:51,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89876157] [2025-02-06 12:49:51,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:49:51,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:49:51,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:49:51,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:49:51,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:49:51,906 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 12:49:51,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 65 transitions, 605 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 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 12:49:51,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:49:51,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 12:49:51,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:49:56,793 INFO L124 PetriNetUnfolderBase]: 54101/73780 cut-off events. [2025-02-06 12:49:56,794 INFO L125 PetriNetUnfolderBase]: For 291456/291456 co-relation queries the response was YES. [2025-02-06 12:49:57,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243596 conditions, 73780 events. 54101/73780 cut-off events. For 291456/291456 co-relation queries the response was YES. Maximal size of possible extension queue 1920. Compared 456309 event pairs, 13324 based on Foata normal form. 1296/75074 useless extension candidates. Maximal degree in co-relation 243558. Up to 30381 conditions per place. [2025-02-06 12:49:57,298 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 82 selfloop transitions, 19 changer transitions 89/196 dead transitions. [2025-02-06 12:49:57,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 196 transitions, 1525 flow [2025-02-06 12:49:57,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:49:57,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:49:57,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 278 transitions. [2025-02-06 12:49:57,303 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.556 [2025-02-06 12:49:57,303 INFO L175 Difference]: Start difference. First operand has 91 places, 65 transitions, 605 flow. Second operand 10 states and 278 transitions. [2025-02-06 12:49:57,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 196 transitions, 1525 flow [2025-02-06 12:49:58,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 196 transitions, 1428 flow, removed 22 selfloop flow, removed 9 redundant places. [2025-02-06 12:49:58,517 INFO L231 Difference]: Finished difference. Result has 96 places, 63 transitions, 628 flow [2025-02-06 12:49:58,517 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=628, PETRI_PLACES=96, PETRI_TRANSITIONS=63} [2025-02-06 12:49:58,523 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 40 predicate places. [2025-02-06 12:49:58,523 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 63 transitions, 628 flow [2025-02-06 12:49:58,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 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 12:49:58,523 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:49:58,523 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] [2025-02-06 12:49:58,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 12:49:58,523 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)] === [2025-02-06 12:49:58,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:49:58,524 INFO L85 PathProgramCache]: Analyzing trace with hash -237217664, now seen corresponding path program 1 times [2025-02-06 12:49:58,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:49:58,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913299361] [2025-02-06 12:49:58,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:49:58,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:49:58,537 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 12:49:58,541 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 12:49:58,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:49:58,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:49:58,646 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 12:49:58,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:49:58,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913299361] [2025-02-06 12:49:58,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913299361] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:49:58,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:49:58,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:49:58,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633158952] [2025-02-06 12:49:58,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:49:58,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:49:58,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:49:58,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:49:58,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:49:58,651 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 12:49:58,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 63 transitions, 628 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 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 12:49:58,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:49:58,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 12:49:58,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:50:03,680 INFO L124 PetriNetUnfolderBase]: 58333/79617 cut-off events. [2025-02-06 12:50:03,684 INFO L125 PetriNetUnfolderBase]: For 368787/368787 co-relation queries the response was YES. [2025-02-06 12:50:04,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254289 conditions, 79617 events. 58333/79617 cut-off events. For 368787/368787 co-relation queries the response was YES. Maximal size of possible extension queue 2196. Compared 501380 event pairs, 9819 based on Foata normal form. 1552/81162 useless extension candidates. Maximal degree in co-relation 254248. Up to 32132 conditions per place. [2025-02-06 12:50:04,150 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 76 selfloop transitions, 21 changer transitions 87/190 dead transitions. [2025-02-06 12:50:04,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 190 transitions, 1512 flow [2025-02-06 12:50:04,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:50:04,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:50:04,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 279 transitions. [2025-02-06 12:50:04,151 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.558 [2025-02-06 12:50:04,152 INFO L175 Difference]: Start difference. First operand has 96 places, 63 transitions, 628 flow. Second operand 10 states and 279 transitions. [2025-02-06 12:50:04,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 190 transitions, 1512 flow