./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 773055aaa90ff8ec223993b190a157a4b1c15a4828ef014894ca730726d954aa --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:19:48,675 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:19:48,729 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:19:48,733 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:19:48,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:19:48,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:19:48,749 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:19:48,749 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:19:48,749 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:19:48,750 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:19:48,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:19:48,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:19:48,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:19:48,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:19:48,751 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:19:48,751 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:19:48,752 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:19:48,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:19:48,752 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:19:48,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:19:48,753 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:19:48,755 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:19:48,756 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:19:48,756 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:19:48,756 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:19:48,756 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:19:48,757 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:19:48,757 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:19:48,757 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:19:48,757 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:19:48,757 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:19:48,758 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:19:48,758 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:19:48,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:19:48,758 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:19:48,759 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:19:48,759 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:19:48,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:19:48,763 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:19:48,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:19:48,764 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:19:48,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:19:48,765 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 773055aaa90ff8ec223993b190a157a4b1c15a4828ef014894ca730726d954aa [2024-11-20 17:19:48,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:19:48,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:19:48,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:19:48,977 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:19:48,977 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:19:48,978 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2024-11-20 17:19:50,136 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:19:50,348 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:19:50,349 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2024-11-20 17:19:50,363 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb4af9e1b/a7cce1b49d1a4dba8c2ab313994416e7/FLAGbde325c36 [2024-11-20 17:19:50,375 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb4af9e1b/a7cce1b49d1a4dba8c2ab313994416e7 [2024-11-20 17:19:50,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:19:50,378 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:19:50,379 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:19:50,379 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:19:50,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:19:50,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:19:50" (1/1) ... [2024-11-20 17:19:50,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e5f171c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:50, skipping insertion in model container [2024-11-20 17:19:50,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:19:50" (1/1) ... [2024-11-20 17:19:50,423 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:19:50,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:19:50,785 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:19:50,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:19:50,882 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:19:50,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:50 WrapperNode [2024-11-20 17:19:50,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:19:50,884 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:19:50,884 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:19:50,884 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:19:50,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:50" (1/1) ... [2024-11-20 17:19:50,911 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:50" (1/1) ... [2024-11-20 17:19:50,938 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 132 [2024-11-20 17:19:50,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:19:50,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:19:50,939 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:19:50,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:19:50,951 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:50" (1/1) ... [2024-11-20 17:19:50,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:50" (1/1) ... [2024-11-20 17:19:50,955 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:50" (1/1) ... [2024-11-20 17:19:50,977 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]. [2024-11-20 17:19:50,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:50" (1/1) ... [2024-11-20 17:19:50,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:50" (1/1) ... [2024-11-20 17:19:50,983 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:50" (1/1) ... [2024-11-20 17:19:50,986 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:50" (1/1) ... [2024-11-20 17:19:50,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:50" (1/1) ... [2024-11-20 17:19:50,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:50" (1/1) ... [2024-11-20 17:19:50,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:19:50,999 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:19:50,999 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:19:50,999 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:19:51,000 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:50" (1/1) ... [2024-11-20 17:19:51,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:19:51,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:19:51,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 17:19:51,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 17:19:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 17:19:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:19:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-20 17:19:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-20 17:19:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-20 17:19:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-20 17:19:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-20 17:19:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-20 17:19:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-20 17:19:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-20 17:19:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:19:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 17:19:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:19:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:19:51,078 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:19:51,180 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:19:51,181 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:19:51,467 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:19:51,467 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:19:51,624 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:19:51,624 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 17:19:51,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:19:51 BoogieIcfgContainer [2024-11-20 17:19:51,625 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:19:51,626 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:19:51,626 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:19:51,629 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:19:51,629 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:19:50" (1/3) ... [2024-11-20 17:19:51,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c78ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:19:51, skipping insertion in model container [2024-11-20 17:19:51,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:50" (2/3) ... [2024-11-20 17:19:51,631 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c78ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:19:51, skipping insertion in model container [2024-11-20 17:19:51,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:19:51" (3/3) ... [2024-11-20 17:19:51,634 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008_power.oepc_pso.oepc_rmo.oepc.i [2024-11-20 17:19:51,646 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:19:51,646 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-20 17:19:51,646 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:19:51,697 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 17:19:51,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-20 17:19:51,748 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-20 17:19:51,748 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:19:51,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-20 17:19:51,754 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-20 17:19:51,756 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-20 17:19:51,767 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:19:51,775 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;@7c7dd104, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:19:51,775 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-20 17:19:51,779 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:19:51,780 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-20 17:19:51,780 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:19:51,780 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:51,780 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-20 17:19:51,781 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:19:51,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:51,785 INFO L85 PathProgramCache]: Analyzing trace with hash 12865631, now seen corresponding path program 1 times [2024-11-20 17:19:51,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:19:51,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709085293] [2024-11-20 17:19:51,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:51,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:19:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:52,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:52,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:19:52,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709085293] [2024-11-20 17:19:52,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709085293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:52,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:52,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:19:52,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804885923] [2024-11-20 17:19:52,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:52,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:19:52,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:19:52,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:19:52,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:19:52,231 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-11-20 17:19:52,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-11-20 17:19:52,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:52,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-11-20 17:19:52,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:53,130 INFO L124 PetriNetUnfolderBase]: 3311/5200 cut-off events. [2024-11-20 17:19:53,130 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-20 17:19:53,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9880 conditions, 5200 events. 3311/5200 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 33766 event pairs, 2177 based on Foata normal form. 288/5441 useless extension candidates. Maximal degree in co-relation 9868. Up to 3661 conditions per place. [2024-11-20 17:19:53,158 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 41 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2024-11-20 17:19:53,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 245 flow [2024-11-20 17:19:53,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:19:53,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:19:53,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-11-20 17:19:53,168 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2024-11-20 17:19:53,170 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 128 transitions. [2024-11-20 17:19:53,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 245 flow [2024-11-20 17:19:53,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 17:19:53,177 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-20 17:19:53,181 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-20 17:19:53,186 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-20 17:19:53,186 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-20 17:19:53,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-11-20 17:19:53,186 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:53,187 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:53,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:19:53,187 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:19:53,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:53,189 INFO L85 PathProgramCache]: Analyzing trace with hash -2133401607, now seen corresponding path program 1 times [2024-11-20 17:19:53,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:19:53,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25257555] [2024-11-20 17:19:53,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:53,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:19:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:53,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:53,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:19:53,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25257555] [2024-11-20 17:19:53,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25257555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:53,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:53,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:19:53,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114792406] [2024-11-20 17:19:53,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:53,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:19:53,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:19:53,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:19:53,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:19:53,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-20 17:19:53,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-20 17:19:53,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:53,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-20 17:19:53,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:53,851 INFO L124 PetriNetUnfolderBase]: 2903/4923 cut-off events. [2024-11-20 17:19:53,851 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-11-20 17:19:53,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9327 conditions, 4923 events. 2903/4923 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 35203 event pairs, 2903 based on Foata normal form. 144/4897 useless extension candidates. Maximal degree in co-relation 9317. Up to 4016 conditions per place. [2024-11-20 17:19:53,876 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 22 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-20 17:19:53,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 150 flow [2024-11-20 17:19:53,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:19:53,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:19:53,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-11-20 17:19:53,881 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-11-20 17:19:53,881 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 100 transitions. [2024-11-20 17:19:53,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 150 flow [2024-11-20 17:19:53,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:19:53,883 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-20 17:19:53,883 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-20 17:19:53,883 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-20 17:19:53,883 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-20 17:19:53,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-20 17:19:53,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:53,884 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:53,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:19:53,884 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:19:53,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:53,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2133400387, now seen corresponding path program 1 times [2024-11-20 17:19:53,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:19:53,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604799380] [2024-11-20 17:19:53,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:53,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:19:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:54,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:54,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:19:54,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604799380] [2024-11-20 17:19:54,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604799380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:54,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:54,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:19:54,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035828413] [2024-11-20 17:19:54,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:54,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:19:54,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:19:54,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:19:54,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:19:54,148 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-11-20 17:19:54,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-20 17:19:54,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:54,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-11-20 17:19:54,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:59,588 INFO L124 PetriNetUnfolderBase]: 46399/66391 cut-off events. [2024-11-20 17:19:59,588 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:19:59,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128923 conditions, 66391 events. 46399/66391 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2703. Compared 486512 event pairs, 10672 based on Foata normal form. 0/64859 useless extension candidates. Maximal degree in co-relation 128917. Up to 24355 conditions per place. [2024-11-20 17:19:59,856 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 48 selfloop transitions, 9 changer transitions 109/178 dead transitions. [2024-11-20 17:19:59,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 178 transitions, 702 flow [2024-11-20 17:19:59,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 17:19:59,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 17:19:59,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 321 transitions. [2024-11-20 17:19:59,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6484848484848484 [2024-11-20 17:19:59,859 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 321 transitions. [2024-11-20 17:19:59,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 178 transitions, 702 flow [2024-11-20 17:19:59,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 178 transitions, 701 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:19:59,865 INFO L231 Difference]: Finished difference. Result has 70 places, 51 transitions, 221 flow [2024-11-20 17:19:59,868 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=221, PETRI_PLACES=70, PETRI_TRANSITIONS=51} [2024-11-20 17:19:59,869 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-20 17:19:59,869 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 51 transitions, 221 flow [2024-11-20 17:19:59,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-20 17:19:59,869 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:59,869 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:59,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:19:59,869 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:19:59,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:59,870 INFO L85 PathProgramCache]: Analyzing trace with hash -465878052, now seen corresponding path program 1 times [2024-11-20 17:19:59,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:19:59,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437851080] [2024-11-20 17:19:59,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:59,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:19:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:00,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:00,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:00,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437851080] [2024-11-20 17:20:00,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437851080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:00,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:00,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:20:00,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152901595] [2024-11-20 17:20:00,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:00,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:20:00,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:00,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:20:00,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:20:00,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-11-20 17:20:00,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 51 transitions, 221 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-11-20 17:20:00,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:00,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-11-20 17:20:00,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:04,635 INFO L124 PetriNetUnfolderBase]: 33090/48570 cut-off events. [2024-11-20 17:20:04,635 INFO L125 PetriNetUnfolderBase]: For 74105/75819 co-relation queries the response was YES. [2024-11-20 17:20:04,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146736 conditions, 48570 events. 33090/48570 cut-off events. For 74105/75819 co-relation queries the response was YES. Maximal size of possible extension queue 1935. Compared 360173 event pairs, 4838 based on Foata normal form. 1373/49787 useless extension candidates. Maximal degree in co-relation 146721. Up to 16625 conditions per place. [2024-11-20 17:20:04,878 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 68 selfloop transitions, 9 changer transitions 106/195 dead transitions. [2024-11-20 17:20:04,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 195 transitions, 1273 flow [2024-11-20 17:20:04,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 17:20:04,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 17:20:04,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 335 transitions. [2024-11-20 17:20:04,880 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6090909090909091 [2024-11-20 17:20:04,881 INFO L175 Difference]: Start difference. First operand has 70 places, 51 transitions, 221 flow. Second operand 10 states and 335 transitions. [2024-11-20 17:20:04,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 195 transitions, 1273 flow [2024-11-20 17:20:05,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 195 transitions, 1115 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-11-20 17:20:05,180 INFO L231 Difference]: Finished difference. Result has 77 places, 56 transitions, 287 flow [2024-11-20 17:20:05,180 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=287, PETRI_PLACES=77, PETRI_TRANSITIONS=56} [2024-11-20 17:20:05,181 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-11-20 17:20:05,181 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 56 transitions, 287 flow [2024-11-20 17:20:05,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-11-20 17:20:05,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:05,182 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:05,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:20:05,182 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:20:05,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:05,183 INFO L85 PathProgramCache]: Analyzing trace with hash 570133034, now seen corresponding path program 1 times [2024-11-20 17:20:05,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:05,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619343956] [2024-11-20 17:20:05,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:05,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:05,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:05,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:05,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619343956] [2024-11-20 17:20:05,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619343956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:05,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:05,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:20:05,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470571839] [2024-11-20 17:20:05,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:05,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:20:05,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:05,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:20:05,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:20:05,318 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-11-20 17:20:05,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 56 transitions, 287 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2024-11-20 17:20:05,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:05,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-11-20 17:20:05,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:09,778 INFO L124 PetriNetUnfolderBase]: 28719/42234 cut-off events. [2024-11-20 17:20:09,778 INFO L125 PetriNetUnfolderBase]: For 98670/99593 co-relation queries the response was YES. [2024-11-20 17:20:09,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133612 conditions, 42234 events. 28719/42234 cut-off events. For 98670/99593 co-relation queries the response was YES. Maximal size of possible extension queue 1549. Compared 302223 event pairs, 3729 based on Foata normal form. 921/42943 useless extension candidates. Maximal degree in co-relation 133590. Up to 16401 conditions per place. [2024-11-20 17:20:10,006 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 68 selfloop transitions, 15 changer transitions 94/189 dead transitions. [2024-11-20 17:20:10,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 189 transitions, 1297 flow [2024-11-20 17:20:10,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 17:20:10,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 17:20:10,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 325 transitions. [2024-11-20 17:20:10,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5909090909090909 [2024-11-20 17:20:10,008 INFO L175 Difference]: Start difference. First operand has 77 places, 56 transitions, 287 flow. Second operand 10 states and 325 transitions. [2024-11-20 17:20:10,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 189 transitions, 1297 flow [2024-11-20 17:20:10,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 189 transitions, 1250 flow, removed 21 selfloop flow, removed 3 redundant places. [2024-11-20 17:20:10,527 INFO L231 Difference]: Finished difference. Result has 86 places, 65 transitions, 453 flow [2024-11-20 17:20:10,528 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=453, PETRI_PLACES=86, PETRI_TRANSITIONS=65} [2024-11-20 17:20:10,528 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 24 predicate places. [2024-11-20 17:20:10,528 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 65 transitions, 453 flow [2024-11-20 17:20:10,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2024-11-20 17:20:10,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:10,529 INFO L204 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] [2024-11-20 17:20:10,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:20:10,529 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:20:10,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:10,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1479422698, now seen corresponding path program 1 times [2024-11-20 17:20:10,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:10,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479376410] [2024-11-20 17:20:10,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:10,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:10,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:10,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:10,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479376410] [2024-11-20 17:20:10,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479376410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:10,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:10,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:20:10,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86314991] [2024-11-20 17:20:10,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:10,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:20:10,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:10,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:20:10,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:20:10,836 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-11-20 17:20:10,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 65 transitions, 453 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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) [2024-11-20 17:20:10,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:10,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-11-20 17:20:10,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:15,555 INFO L124 PetriNetUnfolderBase]: 26763/38904 cut-off events. [2024-11-20 17:20:15,556 INFO L125 PetriNetUnfolderBase]: For 128144/128312 co-relation queries the response was YES. [2024-11-20 17:20:15,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135196 conditions, 38904 events. 26763/38904 cut-off events. For 128144/128312 co-relation queries the response was YES. Maximal size of possible extension queue 1352. Compared 269859 event pairs, 5723 based on Foata normal form. 726/39613 useless extension candidates. Maximal degree in co-relation 135166. Up to 17803 conditions per place. [2024-11-20 17:20:15,780 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 69 selfloop transitions, 30 changer transitions 78/189 dead transitions. [2024-11-20 17:20:15,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 189 transitions, 1456 flow [2024-11-20 17:20:15,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 17:20:15,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 17:20:15,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 329 transitions. [2024-11-20 17:20:15,782 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5981818181818181 [2024-11-20 17:20:15,782 INFO L175 Difference]: Start difference. First operand has 86 places, 65 transitions, 453 flow. Second operand 10 states and 329 transitions. [2024-11-20 17:20:15,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 189 transitions, 1456 flow [2024-11-20 17:20:16,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 189 transitions, 1360 flow, removed 45 selfloop flow, removed 7 redundant places. [2024-11-20 17:20:16,626 INFO L231 Difference]: Finished difference. Result has 90 places, 74 transitions, 609 flow [2024-11-20 17:20:16,626 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=609, PETRI_PLACES=90, PETRI_TRANSITIONS=74} [2024-11-20 17:20:16,627 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 28 predicate places. [2024-11-20 17:20:16,627 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 74 transitions, 609 flow [2024-11-20 17:20:16,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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) [2024-11-20 17:20:16,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:16,627 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:16,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 17:20:16,627 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:20:16,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:16,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1766035693, now seen corresponding path program 1 times [2024-11-20 17:20:16,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:16,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782364906] [2024-11-20 17:20:16,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:16,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:16,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:16,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:16,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782364906] [2024-11-20 17:20:16,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782364906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:16,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:16,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:20:16,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774658700] [2024-11-20 17:20:16,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:16,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:20:16,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:16,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:20:16,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:20:16,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-20 17:20:16,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 74 transitions, 609 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-11-20 17:20:16,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:16,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-20 17:20:16,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:22,574 INFO L124 PetriNetUnfolderBase]: 37969/57579 cut-off events. [2024-11-20 17:20:22,574 INFO L125 PetriNetUnfolderBase]: For 82794/87510 co-relation queries the response was YES. [2024-11-20 17:20:22,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149123 conditions, 57579 events. 37969/57579 cut-off events. For 82794/87510 co-relation queries the response was YES. Maximal size of possible extension queue 2017. Compared 444462 event pairs, 5883 based on Foata normal form. 2736/58919 useless extension candidates. Maximal degree in co-relation 149090. Up to 30569 conditions per place. [2024-11-20 17:20:23,064 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 60 selfloop transitions, 6 changer transitions 0/110 dead transitions. [2024-11-20 17:20:23,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 110 transitions, 879 flow [2024-11-20 17:20:23,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:20:23,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:20:23,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-11-20 17:20:23,065 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-11-20 17:20:23,065 INFO L175 Difference]: Start difference. First operand has 90 places, 74 transitions, 609 flow. Second operand 4 states and 146 transitions. [2024-11-20 17:20:23,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 110 transitions, 879 flow [2024-11-20 17:20:23,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 110 transitions, 839 flow, removed 20 selfloop flow, removed 10 redundant places. [2024-11-20 17:20:23,507 INFO L231 Difference]: Finished difference. Result has 79 places, 79 transitions, 615 flow [2024-11-20 17:20:23,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=615, PETRI_PLACES=79, PETRI_TRANSITIONS=79} [2024-11-20 17:20:23,508 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 17 predicate places. [2024-11-20 17:20:23,508 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 79 transitions, 615 flow [2024-11-20 17:20:23,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-11-20 17:20:23,508 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:23,509 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:23,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 17:20:23,509 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:20:23,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:23,509 INFO L85 PathProgramCache]: Analyzing trace with hash -397688725, now seen corresponding path program 1 times [2024-11-20 17:20:23,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:23,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106533985] [2024-11-20 17:20:23,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:23,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:23,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:23,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:23,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106533985] [2024-11-20 17:20:23,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106533985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:23,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:23,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 17:20:23,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201427886] [2024-11-20 17:20:23,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:23,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:20:23,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:23,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:20:23,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:20:23,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-11-20 17:20:23,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 79 transitions, 615 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-11-20 17:20:23,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:23,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-11-20 17:20:23,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand