./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/mix007.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d 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/mix007.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 87b62b2cd45c104fec3a3f6f97bb4a2e98408c552f26c7f9920866b9b8c9b373 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:13:24,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:13:24,934 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:13:24,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:13:24,941 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:13:24,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:13:24,973 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:13:24,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:13:24,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:13:24,975 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:13:24,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:13:24,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:13:24,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:13:24,976 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:13:24,977 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:13:24,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:13:24,978 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:13:24,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:13:24,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:13:24,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:13:24,979 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:13:24,980 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:13:24,981 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:13:24,981 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:13:24,982 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:13:25,000 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:13:25,001 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:13:25,001 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:13:25,001 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:13:25,002 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:13:25,002 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:13:25,002 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:13:25,003 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:13:25,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:13:25,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:13:25,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:13:25,004 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:13:25,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:13:25,007 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:13:25,007 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:13:25,007 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:13:25,008 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:13:25,008 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87b62b2cd45c104fec3a3f6f97bb4a2e98408c552f26c7f9920866b9b8c9b373 [2024-10-13 12:13:25,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:13:25,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:13:25,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:13:25,286 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:13:25,286 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:13:25,287 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix007.oepc.i [2024-10-13 12:13:26,837 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:13:27,089 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:13:27,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix007.oepc.i [2024-10-13 12:13:27,110 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28803c11f/5b0fa73b88094cd3afd09f980978a607/FLAG54aad8cbb [2024-10-13 12:13:27,125 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28803c11f/5b0fa73b88094cd3afd09f980978a607 [2024-10-13 12:13:27,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:13:27,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:13:27,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:13:27,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:13:27,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:13:27,137 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:13:27" (1/1) ... [2024-10-13 12:13:27,138 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f9bac6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:27, skipping insertion in model container [2024-10-13 12:13:27,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:13:27" (1/1) ... [2024-10-13 12:13:27,188 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:13:27,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:13:27,671 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:13:27,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:13:27,801 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:13:27,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:27 WrapperNode [2024-10-13 12:13:27,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:13:27,803 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:13:27,803 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:13:27,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:13:27,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:27" (1/1) ... [2024-10-13 12:13:27,837 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:27" (1/1) ... [2024-10-13 12:13:27,877 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133 [2024-10-13 12:13:27,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:13:27,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:13:27,880 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:13:27,880 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:13:27,891 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:27" (1/1) ... [2024-10-13 12:13:27,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:27" (1/1) ... [2024-10-13 12:13:27,897 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:27" (1/1) ... [2024-10-13 12:13:27,930 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]. [2024-10-13 12:13:27,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:27" (1/1) ... [2024-10-13 12:13:27,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:27" (1/1) ... [2024-10-13 12:13:27,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:27" (1/1) ... [2024-10-13 12:13:27,948 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:27" (1/1) ... [2024-10-13 12:13:27,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:27" (1/1) ... [2024-10-13 12:13:27,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:27" (1/1) ... [2024-10-13 12:13:27,962 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:13:27,967 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:13:27,967 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:13:27,967 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:13:27,968 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:27" (1/1) ... [2024-10-13 12:13:27,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:13:27,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:13:28,002 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) [2024-10-13 12:13:28,005 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 [2024-10-13 12:13:28,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 12:13:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:13:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-13 12:13:28,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-13 12:13:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-13 12:13:28,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-13 12:13:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-13 12:13:28,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-13 12:13:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-13 12:13:28,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-13 12:13:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 12:13:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 12:13:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:13:28,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:13:28,051 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 12:13:28,194 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:13:28,196 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:13:28,592 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 12:13:28,592 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:13:28,794 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:13:28,795 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 12:13:28,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:13:28 BoogieIcfgContainer [2024-10-13 12:13:28,796 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:13:28,799 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:13:28,799 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:13:28,803 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:13:28,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:13:27" (1/3) ... [2024-10-13 12:13:28,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e799a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:13:28, skipping insertion in model container [2024-10-13 12:13:28,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:27" (2/3) ... [2024-10-13 12:13:28,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e799a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:13:28, skipping insertion in model container [2024-10-13 12:13:28,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:13:28" (3/3) ... [2024-10-13 12:13:28,807 INFO L112 eAbstractionObserver]: Analyzing ICFG mix007.oepc.i [2024-10-13 12:13:28,824 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:13:28,825 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-13 12:13:28,825 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 12:13:28,893 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 12:13:28,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-10-13 12:13:28,972 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-10-13 12:13:28,973 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:13:28,977 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 105 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. [2024-10-13 12:13:28,977 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-10-13 12:13:28,981 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-10-13 12:13:28,992 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:13:28,999 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;@2aaeee66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:13:29,000 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-13 12:13:29,003 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 12:13:29,004 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-13 12:13:29,004 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:13:29,004 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:13:29,005 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-13 12:13:29,005 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:13:29,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:13:29,012 INFO L85 PathProgramCache]: Analyzing trace with hash 13040597, now seen corresponding path program 1 times [2024-10-13 12:13:29,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:13:29,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522698485] [2024-10-13 12:13:29,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:13:29,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:13:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:13:29,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:13:29,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:13:29,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522698485] [2024-10-13 12:13:29,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522698485] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:13:29,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:13:29,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:13:29,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533141910] [2024-10-13 12:13:29,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:13:29,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:13:29,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:13:29,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:13:29,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:13:29,501 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-10-13 12:13:29,503 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) [2024-10-13 12:13:29,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:13:29,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-10-13 12:13:29,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:13:30,637 INFO L124 PetriNetUnfolderBase]: 3311/5200 cut-off events. [2024-10-13 12:13:30,639 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-13 12:13:30,656 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 320. Compared 33817 event pairs, 2177 based on Foata normal form. 288/5439 useless extension candidates. Maximal degree in co-relation 9868. Up to 3661 conditions per place. [2024-10-13 12:13:30,685 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 41 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2024-10-13 12:13:30,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 245 flow [2024-10-13 12:13:30,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:13:30,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:13:30,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-10-13 12:13:30,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2024-10-13 12:13:30,699 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 128 transitions. [2024-10-13 12:13:30,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 245 flow [2024-10-13 12:13:30,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 12:13:30,709 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-10-13 12:13:30,713 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} [2024-10-13 12:13:30,718 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-10-13 12:13:30,718 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-10-13 12:13:30,719 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) [2024-10-13 12:13:30,719 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:13:30,719 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:13:30,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 12:13:30,720 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:13:30,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:13:30,721 INFO L85 PathProgramCache]: Analyzing trace with hash -484167886, now seen corresponding path program 1 times [2024-10-13 12:13:30,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:13:30,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389797057] [2024-10-13 12:13:30,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:13:30,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:13:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:13:30,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:13:30,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:13:30,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389797057] [2024-10-13 12:13:30,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389797057] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:13:30,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:13:30,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:13:30,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433502334] [2024-10-13 12:13:30,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:13:30,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:13:30,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:13:30,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:13:30,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:13:30,814 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-10-13 12:13:30,814 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) [2024-10-13 12:13:30,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:13:30,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-10-13 12:13:30,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:13:31,648 INFO L124 PetriNetUnfolderBase]: 2903/4923 cut-off events. [2024-10-13 12:13:31,648 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-10-13 12:13:31,658 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 35547 event pairs, 2903 based on Foata normal form. 144/4892 useless extension candidates. Maximal degree in co-relation 9317. Up to 4016 conditions per place. [2024-10-13 12:13:31,679 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 22 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-10-13 12:13:31,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 150 flow [2024-10-13 12:13:31,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:13:31,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:13:31,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-10-13 12:13:31,682 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-10-13 12:13:31,682 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 100 transitions. [2024-10-13 12:13:31,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 150 flow [2024-10-13 12:13:31,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:13:31,685 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-10-13 12:13:31,685 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} [2024-10-13 12:13:31,686 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-10-13 12:13:31,686 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-10-13 12:13:31,687 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) [2024-10-13 12:13:31,687 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:13:31,687 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:13:31,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 12:13:31,688 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:13:31,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:13:31,689 INFO L85 PathProgramCache]: Analyzing trace with hash -484166630, now seen corresponding path program 1 times [2024-10-13 12:13:31,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:13:31,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808153252] [2024-10-13 12:13:31,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:13:31,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:13:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:13:32,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:13:32,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:13:32,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808153252] [2024-10-13 12:13:32,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808153252] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:13:32,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:13:32,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:13:32,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928171485] [2024-10-13 12:13:32,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:13:32,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:13:32,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:13:32,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:13:32,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:13:32,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-10-13 12:13:32,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-13 12:13:32,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:13:32,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-10-13 12:13:32,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:13:38,139 INFO L124 PetriNetUnfolderBase]: 34962/50322 cut-off events. [2024-10-13 12:13:38,139 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:13:38,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97695 conditions, 50322 events. 34962/50322 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2217. Compared 365857 event pairs, 8498 based on Foata normal form. 0/48944 useless extension candidates. Maximal degree in co-relation 97689. Up to 20017 conditions per place. [2024-10-13 12:13:38,508 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 49 selfloop transitions, 8 changer transitions 102/172 dead transitions. [2024-10-13 12:13:38,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 172 transitions, 678 flow [2024-10-13 12:13:38,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 12:13:38,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 12:13:38,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 323 transitions. [2024-10-13 12:13:38,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6525252525252525 [2024-10-13 12:13:38,514 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 323 transitions. [2024-10-13 12:13:38,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 172 transitions, 678 flow [2024-10-13 12:13:38,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 172 transitions, 677 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:13:38,522 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 207 flow [2024-10-13 12:13:38,522 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=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=207, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-10-13 12:13:38,523 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-10-13 12:13:38,524 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 207 flow [2024-10-13 12:13:38,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-13 12:13:38,525 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:13:38,525 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:13:38,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 12:13:38,526 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:13:38,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:13:38,527 INFO L85 PathProgramCache]: Analyzing trace with hash 993992313, now seen corresponding path program 1 times [2024-10-13 12:13:38,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:13:38,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924358562] [2024-10-13 12:13:38,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:13:38,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:13:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:13:38,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:13:38,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:13:38,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924358562] [2024-10-13 12:13:38,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924358562] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:13:38,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:13:38,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:13:38,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900110932] [2024-10-13 12:13:38,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:13:38,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:13:38,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:13:38,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:13:38,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:13:38,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-10-13 12:13:38,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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) [2024-10-13 12:13:38,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:13:38,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-10-13 12:13:38,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:13:42,572 INFO L124 PetriNetUnfolderBase]: 18841/29949 cut-off events. [2024-10-13 12:13:42,572 INFO L125 PetriNetUnfolderBase]: For 26859/29366 co-relation queries the response was YES. [2024-10-13 12:13:42,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79750 conditions, 29949 events. 18841/29949 cut-off events. For 26859/29366 co-relation queries the response was YES. Maximal size of possible extension queue 1522. Compared 246297 event pairs, 5201 based on Foata normal form. 868/29599 useless extension candidates. Maximal degree in co-relation 79735. Up to 16611 conditions per place. [2024-10-13 12:13:42,822 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 34 selfloop transitions, 3 changer transitions 43/103 dead transitions. [2024-10-13 12:13:42,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 103 transitions, 531 flow [2024-10-13 12:13:42,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 12:13:42,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 12:13:42,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 237 transitions. [2024-10-13 12:13:42,825 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6155844155844156 [2024-10-13 12:13:42,825 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 207 flow. Second operand 7 states and 237 transitions. [2024-10-13 12:13:42,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 103 transitions, 531 flow [2024-10-13 12:13:43,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 103 transitions, 477 flow, removed 15 selfloop flow, removed 4 redundant places. [2024-10-13 12:13:43,072 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 192 flow [2024-10-13 12:13:43,073 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=192, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-10-13 12:13:43,074 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-10-13 12:13:43,075 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 192 flow [2024-10-13 12:13:43,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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) [2024-10-13 12:13:43,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:13:43,076 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] [2024-10-13 12:13:43,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 12:13:43,076 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:13:43,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:13:43,076 INFO L85 PathProgramCache]: Analyzing trace with hash -370590560, now seen corresponding path program 1 times [2024-10-13 12:13:43,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:13:43,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718920018] [2024-10-13 12:13:43,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:13:43,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:13:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:13:43,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:13:43,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:13:43,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718920018] [2024-10-13 12:13:43,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718920018] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:13:43,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:13:43,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:13:43,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158105660] [2024-10-13 12:13:43,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:13:43,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:13:43,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:13:43,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:13:43,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:13:43,289 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-10-13 12:13:43,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-10-13 12:13:43,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:13:43,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-10-13 12:13:43,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:13:47,255 INFO L124 PetriNetUnfolderBase]: 22485/33154 cut-off events. [2024-10-13 12:13:47,256 INFO L125 PetriNetUnfolderBase]: For 31285/31730 co-relation queries the response was YES. [2024-10-13 12:13:47,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89994 conditions, 33154 events. 22485/33154 cut-off events. For 31285/31730 co-relation queries the response was YES. Maximal size of possible extension queue 1310. Compared 233919 event pairs, 3909 based on Foata normal form. 840/33883 useless extension candidates. Maximal degree in co-relation 89976. Up to 12245 conditions per place. [2024-10-13 12:13:47,634 INFO L140 encePairwiseOnDemand]: 45/55 looper letters, 64 selfloop transitions, 8 changer transitions 86/171 dead transitions. [2024-10-13 12:13:47,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 171 transitions, 940 flow [2024-10-13 12:13:47,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 12:13:47,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 12:13:47,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2024-10-13 12:13:47,636 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5945454545454546 [2024-10-13 12:13:47,636 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 192 flow. Second operand 10 states and 327 transitions. [2024-10-13 12:13:47,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 171 transitions, 940 flow [2024-10-13 12:13:48,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 171 transitions, 898 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-10-13 12:13:48,289 INFO L231 Difference]: Finished difference. Result has 76 places, 54 transitions, 257 flow [2024-10-13 12:13:48,289 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=257, PETRI_PLACES=76, PETRI_TRANSITIONS=54} [2024-10-13 12:13:48,290 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 14 predicate places. [2024-10-13 12:13:48,290 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 54 transitions, 257 flow [2024-10-13 12:13:48,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-10-13 12:13:48,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:13:48,291 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] [2024-10-13 12:13:48,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 12:13:48,291 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:13:48,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:13:48,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1775311437, now seen corresponding path program 1 times [2024-10-13 12:13:48,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:13:48,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828860187] [2024-10-13 12:13:48,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:13:48,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:13:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:13:48,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:13:48,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:13:48,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828860187] [2024-10-13 12:13:48,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828860187] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:13:48,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:13:48,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:13:48,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942294783] [2024-10-13 12:13:48,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:13:48,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:13:48,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:13:48,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:13:48,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:13:48,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-13 12:13:48,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 54 transitions, 257 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) [2024-10-13 12:13:48,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:13:48,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-13 12:13:48,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:13:53,640 INFO L124 PetriNetUnfolderBase]: 32302/48151 cut-off events. [2024-10-13 12:13:53,641 INFO L125 PetriNetUnfolderBase]: For 37462/44336 co-relation queries the response was YES. [2024-10-13 12:13:54,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116642 conditions, 48151 events. 32302/48151 cut-off events. For 37462/44336 co-relation queries the response was YES. Maximal size of possible extension queue 2010. Compared 358220 event pairs, 4957 based on Foata normal form. 2023/48311 useless extension candidates. Maximal degree in co-relation 116621. Up to 25691 conditions per place. [2024-10-13 12:13:54,258 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 60 selfloop transitions, 6 changer transitions 0/90 dead transitions. [2024-10-13 12:13:54,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 90 transitions, 507 flow [2024-10-13 12:13:54,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:13:54,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:13:54,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-10-13 12:13:54,260 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-10-13 12:13:54,260 INFO L175 Difference]: Start difference. First operand has 76 places, 54 transitions, 257 flow. Second operand 4 states and 146 transitions. [2024-10-13 12:13:54,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 90 transitions, 507 flow [2024-10-13 12:13:55,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 90 transitions, 492 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-10-13 12:13:55,090 INFO L231 Difference]: Finished difference. Result has 72 places, 59 transitions, 288 flow [2024-10-13 12:13:55,090 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=72, PETRI_TRANSITIONS=59} [2024-10-13 12:13:55,091 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 10 predicate places. [2024-10-13 12:13:55,091 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 59 transitions, 288 flow [2024-10-13 12:13:55,091 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) [2024-10-13 12:13:55,091 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:13:55,092 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] [2024-10-13 12:13:55,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 12:13:55,092 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:13:55,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:13:55,092 INFO L85 PathProgramCache]: Analyzing trace with hash -270713947, now seen corresponding path program 1 times [2024-10-13 12:13:55,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:13:55,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437574625] [2024-10-13 12:13:55,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:13:55,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:13:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:13:55,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:13:55,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:13:55,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437574625] [2024-10-13 12:13:55,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437574625] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:13:55,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:13:55,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:13:55,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669177705] [2024-10-13 12:13:55,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:13:55,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:13:55,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:13:55,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:13:55,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:13:55,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-13 12:13:55,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 59 transitions, 288 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-13 12:13:55,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:13:55,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-13 12:13:55,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:13:59,880 INFO L124 PetriNetUnfolderBase]: 25918/38933 cut-off events. [2024-10-13 12:13:59,880 INFO L125 PetriNetUnfolderBase]: For 26072/31070 co-relation queries the response was YES. [2024-10-13 12:14:00,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102408 conditions, 38933 events. 25918/38933 cut-off events. For 26072/31070 co-relation queries the response was YES. Maximal size of possible extension queue 1635. Compared 283019 event pairs, 2929 based on Foata normal form. 1725/39131 useless extension candidates. Maximal degree in co-relation 102386. Up to 13353 conditions per place. [2024-10-13 12:14:00,176 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 78 selfloop transitions, 10 changer transitions 0/112 dead transitions. [2024-10-13 12:14:00,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 112 transitions, 659 flow [2024-10-13 12:14:00,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:14:00,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:14:00,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 187 transitions. [2024-10-13 12:14:00,178 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.68 [2024-10-13 12:14:00,178 INFO L175 Difference]: Start difference. First operand has 72 places, 59 transitions, 288 flow. Second operand 5 states and 187 transitions. [2024-10-13 12:14:00,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 112 transitions, 659 flow [2024-10-13 12:14:00,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 112 transitions, 632 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-10-13 12:14:00,193 INFO L231 Difference]: Finished difference. Result has 73 places, 64 transitions, 341 flow [2024-10-13 12:14:00,193 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=341, PETRI_PLACES=73, PETRI_TRANSITIONS=64} [2024-10-13 12:14:00,194 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 11 predicate places. [2024-10-13 12:14:00,194 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 64 transitions, 341 flow [2024-10-13 12:14:00,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-13 12:14:00,195 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:14:00,195 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, 1] [2024-10-13 12:14:00,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 12:14:00,195 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:14:00,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:14:00,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1351543178, now seen corresponding path program 1 times [2024-10-13 12:14:00,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:14:00,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649868319] [2024-10-13 12:14:00,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:14:00,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:14:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:14:00,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:14:00,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:14:00,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649868319] [2024-10-13 12:14:00,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649868319] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:14:00,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:14:00,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:14:00,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444948212] [2024-10-13 12:14:00,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:14:00,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:14:00,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:14:00,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:14:00,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:14:00,538 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-13 12:14:00,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 341 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-10-13 12:14:00,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:14:00,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-13 12:14:00,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand