./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/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 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/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.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 473191b5f1326a38296af26dcd2c7f553c42833f82b512e9fb358484309bc769 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:59:31,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:59:31,901 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 18:59:31,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:59:31,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:59:31,924 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:59:31,925 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:59:31,925 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:59:31,926 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:59:31,926 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:59:31,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:59:31,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:59:31,928 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:59:31,928 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:59:31,928 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:59:31,929 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:59:31,929 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 18:59:31,929 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:59:31,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 18:59:31,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:59:31,932 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:59:31,933 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:59:31,933 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:59:31,933 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:59:31,934 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:59:31,934 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:59:31,934 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:59:31,935 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 18:59:31,935 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:59:31,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:59:31,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:59:31,936 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:59:31,936 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:59:31,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:59:31,937 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:59:31,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:59:31,938 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 18:59:31,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 18:59:31,938 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:59:31,938 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:59:31,939 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:59:31,940 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:59:31,940 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 473191b5f1326a38296af26dcd2c7f553c42833f82b512e9fb358484309bc769 [2024-10-24 18:59:32,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:59:32,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:59:32,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:59:32,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:59:32,238 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:59:32,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-10-24 18:59:33,703 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:59:33,970 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:59:33,972 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-10-24 18:59:33,997 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6aca3318/a57e7e6b4e404c7db59e0f180b8e157c/FLAG6f1742e80 [2024-10-24 18:59:34,013 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6aca3318/a57e7e6b4e404c7db59e0f180b8e157c [2024-10-24 18:59:34,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:59:34,019 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:59:34,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:59:34,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:59:34,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:59:34,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:59:34" (1/1) ... [2024-10-24 18:59:34,029 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fe7fc82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:59:34, skipping insertion in model container [2024-10-24 18:59:34,032 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:59:34" (1/1) ... [2024-10-24 18:59:34,083 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:59:34,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:59:34,589 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 18:59:34,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:59:34,717 INFO L204 MainTranslator]: Completed translation [2024-10-24 18:59:34,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:59:34 WrapperNode [2024-10-24 18:59:34,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:59:34,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 18:59:34,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 18:59:34,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 18:59:34,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:59:34" (1/1) ... [2024-10-24 18:59:34,753 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:59:34" (1/1) ... [2024-10-24 18:59:34,789 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 156 [2024-10-24 18:59:34,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 18:59:34,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 18:59:34,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 18:59:34,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 18:59:34,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:59:34" (1/1) ... [2024-10-24 18:59:34,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:59:34" (1/1) ... [2024-10-24 18:59:34,819 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:59:34" (1/1) ... [2024-10-24 18:59:34,859 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]. [2024-10-24 18:59:34,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:59:34" (1/1) ... [2024-10-24 18:59:34,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:59:34" (1/1) ... [2024-10-24 18:59:34,872 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:59:34" (1/1) ... [2024-10-24 18:59:34,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:59:34" (1/1) ... [2024-10-24 18:59:34,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:59:34" (1/1) ... [2024-10-24 18:59:34,881 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:59:34" (1/1) ... [2024-10-24 18:59:34,888 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 18:59:34,892 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 18:59:34,892 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 18:59:34,892 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 18:59:34,893 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:59:34" (1/1) ... [2024-10-24 18:59:34,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:59:34,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:59:34,929 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) [2024-10-24 18:59:34,935 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 [2024-10-24 18:59:34,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 18:59:34,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 18:59:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 18:59:34,984 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 18:59:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 18:59:34,984 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 18:59:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 18:59:34,984 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 18:59:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-24 18:59:34,985 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-24 18:59:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 18:59:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 18:59:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 18:59:34,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 18:59:34,988 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 18:59:35,113 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 18:59:35,116 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 18:59:35,433 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 18:59:35,433 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 18:59:35,676 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 18:59:35,679 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 18:59:35,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:59:35 BoogieIcfgContainer [2024-10-24 18:59:35,680 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 18:59:35,682 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 18:59:35,683 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 18:59:35,687 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 18:59:35,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:59:34" (1/3) ... [2024-10-24 18:59:35,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f0dced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:59:35, skipping insertion in model container [2024-10-24 18:59:35,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:59:34" (2/3) ... [2024-10-24 18:59:35,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f0dced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:59:35, skipping insertion in model container [2024-10-24 18:59:35,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:59:35" (3/3) ... [2024-10-24 18:59:35,690 INFO L112 eAbstractionObserver]: Analyzing ICFG mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-10-24 18:59:35,708 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 18:59:35,709 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-24 18:59:35,709 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 18:59:35,770 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 18:59:35,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-10-24 18:59:35,844 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-10-24 18:59:35,845 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:59:35,850 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 5. Compared 113 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. [2024-10-24 18:59:35,851 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-10-24 18:59:35,855 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-10-24 18:59:35,867 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 18:59:35,873 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;@3ee4363, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 18:59:35,876 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-24 18:59:35,889 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 18:59:35,889 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-10-24 18:59:35,889 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:59:35,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:59:35,890 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:59:35,891 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:59:35,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:59:35,897 INFO L85 PathProgramCache]: Analyzing trace with hash 463918960, now seen corresponding path program 1 times [2024-10-24 18:59:35,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:59:35,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242915751] [2024-10-24 18:59:35,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:59:35,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:59:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:59:36,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:59:36,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:59:36,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242915751] [2024-10-24 18:59:36,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242915751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:59:36,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:59:36,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:59:36,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542244826] [2024-10-24 18:59:36,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:59:36,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:59:36,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:59:36,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:59:36,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:59:36,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 55 [2024-10-24 18:59:36,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-10-24 18:59:36,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:59:36,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 55 [2024-10-24 18:59:36,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:59:36,996 INFO L124 PetriNetUnfolderBase]: 1047/2051 cut-off events. [2024-10-24 18:59:36,997 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:59:37,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3611 conditions, 2051 events. 1047/2051 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 15600 event pairs, 219 based on Foata normal form. 96/2117 useless extension candidates. Maximal degree in co-relation 3599. Up to 1153 conditions per place. [2024-10-24 18:59:37,021 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 31 selfloop transitions, 2 changer transitions 2/59 dead transitions. [2024-10-24 18:59:37,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 59 transitions, 200 flow [2024-10-24 18:59:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:59:37,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 18:59:37,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2024-10-24 18:59:37,034 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7515151515151515 [2024-10-24 18:59:37,036 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 124 transitions. [2024-10-24 18:59:37,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 59 transitions, 200 flow [2024-10-24 18:59:37,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 59 transitions, 196 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 18:59:37,046 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-10-24 18:59:37,049 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} [2024-10-24 18:59:37,055 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-10-24 18:59:37,056 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-10-24 18:59:37,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-10-24 18:59:37,056 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:59:37,057 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:59:37,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 18:59:37,058 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:59:37,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:59:37,059 INFO L85 PathProgramCache]: Analyzing trace with hash 784436385, now seen corresponding path program 1 times [2024-10-24 18:59:37,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:59:37,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804228706] [2024-10-24 18:59:37,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:59:37,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:59:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:59:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:59:37,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:59:37,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804228706] [2024-10-24 18:59:37,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804228706] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:59:37,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:59:37,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:59:37,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269541768] [2024-10-24 18:59:37,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:59:37,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:59:37,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:59:37,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:59:37,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:59:37,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-10-24 18:59:37,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-10-24 18:59:37,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:59:37,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-10-24 18:59:37,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:59:37,449 INFO L124 PetriNetUnfolderBase]: 931/1635 cut-off events. [2024-10-24 18:59:37,450 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-10-24 18:59:37,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3125 conditions, 1635 events. 931/1635 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 11592 event pairs, 931 based on Foata normal form. 48/1617 useless extension candidates. Maximal degree in co-relation 3115. Up to 1352 conditions per place. [2024-10-24 18:59:37,465 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 20 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-10-24 18:59:37,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 146 flow [2024-10-24 18:59:37,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:59:37,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 18:59:37,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-10-24 18:59:37,470 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-10-24 18:59:37,470 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 104 transitions. [2024-10-24 18:59:37,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 146 flow [2024-10-24 18:59:37,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 18:59:37,472 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-10-24 18:59:37,473 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} [2024-10-24 18:59:37,475 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-10-24 18:59:37,475 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-10-24 18:59:37,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-10-24 18:59:37,476 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:59:37,476 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:59:37,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 18:59:37,477 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:59:37,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:59:37,478 INFO L85 PathProgramCache]: Analyzing trace with hash 784437702, now seen corresponding path program 1 times [2024-10-24 18:59:37,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:59:37,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135623303] [2024-10-24 18:59:37,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:59:37,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:59:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:59:38,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:59:38,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:59:38,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135623303] [2024-10-24 18:59:38,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135623303] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:59:38,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:59:38,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 18:59:38,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072537965] [2024-10-24 18:59:38,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:59:38,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 18:59:38,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:59:38,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 18:59:38,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:59:38,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-24 18:59:38,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 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) [2024-10-24 18:59:38,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:59:38,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-24 18:59:38,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:59:41,447 INFO L124 PetriNetUnfolderBase]: 15429/23658 cut-off events. [2024-10-24 18:59:41,447 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:59:41,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44954 conditions, 23658 events. 15429/23658 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1222. Compared 182452 event pairs, 731 based on Foata normal form. 0/23102 useless extension candidates. Maximal degree in co-relation 44948. Up to 8503 conditions per place. [2024-10-24 18:59:41,627 INFO L140 encePairwiseOnDemand]: 40/55 looper letters, 55 selfloop transitions, 13 changer transitions 107/191 dead transitions. [2024-10-24 18:59:41,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 191 transitions, 752 flow [2024-10-24 18:59:41,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 18:59:41,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-24 18:59:41,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 430 transitions. [2024-10-24 18:59:41,633 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2024-10-24 18:59:41,634 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 12 states and 430 transitions. [2024-10-24 18:59:41,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 191 transitions, 752 flow [2024-10-24 18:59:41,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 191 transitions, 751 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 18:59:41,641 INFO L231 Difference]: Finished difference. Result has 76 places, 55 transitions, 249 flow [2024-10-24 18:59:41,641 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=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=249, PETRI_PLACES=76, PETRI_TRANSITIONS=55} [2024-10-24 18:59:41,642 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 14 predicate places. [2024-10-24 18:59:41,642 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 55 transitions, 249 flow [2024-10-24 18:59:41,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 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) [2024-10-24 18:59:41,643 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:59:41,643 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:59:41,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 18:59:41,644 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:59:41,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:59:41,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1904923771, now seen corresponding path program 1 times [2024-10-24 18:59:41,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:59:41,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450103696] [2024-10-24 18:59:41,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:59:41,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:59:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:59:41,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:59:41,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:59:41,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450103696] [2024-10-24 18:59:41,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450103696] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:59:41,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:59:41,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:59:41,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866327592] [2024-10-24 18:59:41,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:59:41,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:59:41,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:59:41,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:59:41,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:59:41,966 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-10-24 18:59:41,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 55 transitions, 249 flow. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 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) [2024-10-24 18:59:41,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:59:41,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-10-24 18:59:41,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:59:44,046 INFO L124 PetriNetUnfolderBase]: 7720/13564 cut-off events. [2024-10-24 18:59:44,047 INFO L125 PetriNetUnfolderBase]: For 23613/24527 co-relation queries the response was YES. [2024-10-24 18:59:44,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42497 conditions, 13564 events. 7720/13564 cut-off events. For 23613/24527 co-relation queries the response was YES. Maximal size of possible extension queue 807. Compared 117345 event pairs, 2032 based on Foata normal form. 543/13135 useless extension candidates. Maximal degree in co-relation 42479. Up to 5354 conditions per place. [2024-10-24 18:59:44,215 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 51 selfloop transitions, 8 changer transitions 14/101 dead transitions. [2024-10-24 18:59:44,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 101 transitions, 641 flow [2024-10-24 18:59:44,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 18:59:44,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 18:59:44,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 240 transitions. [2024-10-24 18:59:44,217 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6233766233766234 [2024-10-24 18:59:44,217 INFO L175 Difference]: Start difference. First operand has 76 places, 55 transitions, 249 flow. Second operand 7 states and 240 transitions. [2024-10-24 18:59:44,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 101 transitions, 641 flow [2024-10-24 18:59:44,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 101 transitions, 597 flow, removed 22 selfloop flow, removed 4 redundant places. [2024-10-24 18:59:44,300 INFO L231 Difference]: Finished difference. Result has 72 places, 60 transitions, 297 flow [2024-10-24 18:59:44,300 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=297, PETRI_PLACES=72, PETRI_TRANSITIONS=60} [2024-10-24 18:59:44,302 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 10 predicate places. [2024-10-24 18:59:44,303 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 60 transitions, 297 flow [2024-10-24 18:59:44,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 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) [2024-10-24 18:59:44,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:59:44,305 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] [2024-10-24 18:59:44,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 18:59:44,306 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:59:44,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:59:44,306 INFO L85 PathProgramCache]: Analyzing trace with hash 2041038594, now seen corresponding path program 1 times [2024-10-24 18:59:44,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:59:44,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409107610] [2024-10-24 18:59:44,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:59:44,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:59:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:59:44,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:59:44,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:59:44,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409107610] [2024-10-24 18:59:44,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409107610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:59:44,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:59:44,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:59:44,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767386740] [2024-10-24 18:59:44,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:59:44,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:59:44,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:59:44,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:59:44,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:59:44,560 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-10-24 18:59:44,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 60 transitions, 297 flow. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-24 18:59:44,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:59:44,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-10-24 18:59:44,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:59:46,682 INFO L124 PetriNetUnfolderBase]: 10884/18884 cut-off events. [2024-10-24 18:59:46,682 INFO L125 PetriNetUnfolderBase]: For 32710/33285 co-relation queries the response was YES. [2024-10-24 18:59:46,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58601 conditions, 18884 events. 10884/18884 cut-off events. For 32710/33285 co-relation queries the response was YES. Maximal size of possible extension queue 1139. Compared 167607 event pairs, 2546 based on Foata normal form. 430/18447 useless extension candidates. Maximal degree in co-relation 58582. Up to 9957 conditions per place. [2024-10-24 18:59:46,840 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 65 selfloop transitions, 15 changer transitions 26/134 dead transitions. [2024-10-24 18:59:46,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 134 transitions, 940 flow [2024-10-24 18:59:46,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 18:59:46,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 18:59:46,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 246 transitions. [2024-10-24 18:59:46,842 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.638961038961039 [2024-10-24 18:59:46,842 INFO L175 Difference]: Start difference. First operand has 72 places, 60 transitions, 297 flow. Second operand 7 states and 246 transitions. [2024-10-24 18:59:46,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 134 transitions, 940 flow [2024-10-24 18:59:46,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 134 transitions, 940 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 18:59:46,947 INFO L231 Difference]: Finished difference. Result has 82 places, 74 transitions, 495 flow [2024-10-24 18:59:46,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=495, PETRI_PLACES=82, PETRI_TRANSITIONS=74} [2024-10-24 18:59:46,950 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 20 predicate places. [2024-10-24 18:59:46,951 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 74 transitions, 495 flow [2024-10-24 18:59:46,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-24 18:59:46,952 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:59:46,952 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] [2024-10-24 18:59:46,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 18:59:46,952 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:59:46,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:59:46,954 INFO L85 PathProgramCache]: Analyzing trace with hash -595921469, now seen corresponding path program 1 times [2024-10-24 18:59:46,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:59:46,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062059795] [2024-10-24 18:59:46,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:59:46,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:59:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:59:47,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:59:47,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:59:47,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062059795] [2024-10-24 18:59:47,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062059795] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:59:47,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:59:47,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 18:59:47,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769557033] [2024-10-24 18:59:47,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:59:47,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 18:59:47,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:59:47,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 18:59:47,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:59:47,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-24 18:59:47,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 74 transitions, 495 flow. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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) [2024-10-24 18:59:47,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:59:47,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-24 18:59:47,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:59:51,299 INFO L124 PetriNetUnfolderBase]: 18350/30631 cut-off events. [2024-10-24 18:59:51,300 INFO L125 PetriNetUnfolderBase]: For 81164/81236 co-relation queries the response was YES. [2024-10-24 18:59:51,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103526 conditions, 30631 events. 18350/30631 cut-off events. For 81164/81236 co-relation queries the response was YES. Maximal size of possible extension queue 1805. Compared 278412 event pairs, 3178 based on Foata normal form. 352/30594 useless extension candidates. Maximal degree in co-relation 103501. Up to 9775 conditions per place. [2024-10-24 18:59:51,568 INFO L140 encePairwiseOnDemand]: 41/55 looper letters, 64 selfloop transitions, 21 changer transitions 109/210 dead transitions. [2024-10-24 18:59:51,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 210 transitions, 1781 flow [2024-10-24 18:59:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 18:59:51,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 18:59:51,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 344 transitions. [2024-10-24 18:59:51,571 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6254545454545455 [2024-10-24 18:59:51,571 INFO L175 Difference]: Start difference. First operand has 82 places, 74 transitions, 495 flow. Second operand 10 states and 344 transitions. [2024-10-24 18:59:51,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 210 transitions, 1781 flow [2024-10-24 18:59:52,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 210 transitions, 1765 flow, removed 8 selfloop flow, removed 0 redundant places. [2024-10-24 18:59:52,130 INFO L231 Difference]: Finished difference. Result has 100 places, 71 transitions, 537 flow [2024-10-24 18:59:52,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=537, PETRI_PLACES=100, PETRI_TRANSITIONS=71} [2024-10-24 18:59:52,131 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 38 predicate places. [2024-10-24 18:59:52,131 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 71 transitions, 537 flow [2024-10-24 18:59:52,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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) [2024-10-24 18:59:52,132 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:59:52,132 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] [2024-10-24 18:59:52,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 18:59:52,133 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:59:52,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:59:52,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1154209379, now seen corresponding path program 1 times [2024-10-24 18:59:52,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:59:52,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804755535] [2024-10-24 18:59:52,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:59:52,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:59:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:59:52,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:59:52,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:59:52,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804755535] [2024-10-24 18:59:52,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804755535] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:59:52,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:59:52,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 18:59:52,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132731302] [2024-10-24 18:59:52,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:59:52,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 18:59:52,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:59:52,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 18:59:52,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 18:59:52,916 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-10-24 18:59:52,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 71 transitions, 537 flow. Second operand has 7 states, 7 states have (on average 28.142857142857142) internal successors, (197), 7 states have internal predecessors, (197), 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) [2024-10-24 18:59:52,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:59:52,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-10-24 18:59:52,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:59:55,421 INFO L124 PetriNetUnfolderBase]: 10987/19907 cut-off events. [2024-10-24 18:59:55,421 INFO L125 PetriNetUnfolderBase]: For 94268/95803 co-relation queries the response was YES. [2024-10-24 18:59:55,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73852 conditions, 19907 events. 10987/19907 cut-off events. For 94268/95803 co-relation queries the response was YES. Maximal size of possible extension queue 1086. Compared 182409 event pairs, 2228 based on Foata normal form. 704/19769 useless extension candidates. Maximal degree in co-relation 73816. Up to 9586 conditions per place. [2024-10-24 18:59:55,594 INFO L140 encePairwiseOnDemand]: 47/55 looper letters, 71 selfloop transitions, 32 changer transitions 26/168 dead transitions. [2024-10-24 18:59:55,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 168 transitions, 1473 flow [2024-10-24 18:59:55,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 18:59:55,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-24 18:59:55,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 372 transitions. [2024-10-24 18:59:55,597 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6148760330578512 [2024-10-24 18:59:55,597 INFO L175 Difference]: Start difference. First operand has 100 places, 71 transitions, 537 flow. Second operand 11 states and 372 transitions. [2024-10-24 18:59:55,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 168 transitions, 1473 flow [2024-10-24 18:59:55,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 168 transitions, 1415 flow, removed 25 selfloop flow, removed 9 redundant places. [2024-10-24 18:59:55,865 INFO L231 Difference]: Finished difference. Result has 92 places, 105 transitions, 923 flow [2024-10-24 18:59:55,865 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=923, PETRI_PLACES=92, PETRI_TRANSITIONS=105} [2024-10-24 18:59:55,866 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 30 predicate places. [2024-10-24 18:59:55,866 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 105 transitions, 923 flow [2024-10-24 18:59:55,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.142857142857142) internal successors, (197), 7 states have internal predecessors, (197), 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) [2024-10-24 18:59:55,867 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:59:55,867 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] [2024-10-24 18:59:55,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 18:59:55,867 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:59:55,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:59:55,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1097935110, now seen corresponding path program 1 times [2024-10-24 18:59:55,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:59:55,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907007360] [2024-10-24 18:59:55,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:59:55,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:59:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:59:56,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:59:56,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:59:56,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907007360] [2024-10-24 18:59:56,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907007360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:59:56,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:59:56,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 18:59:56,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435899354] [2024-10-24 18:59:56,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:59:56,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 18:59:56,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:59:56,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 18:59:56,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 18:59:56,689 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-10-24 18:59:56,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 105 transitions, 923 flow. Second operand has 9 states, 9 states have (on average 24.11111111111111) internal successors, (217), 9 states have internal predecessors, (217), 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) [2024-10-24 18:59:56,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:59:56,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-10-24 18:59:56,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:00:00,479 INFO L124 PetriNetUnfolderBase]: 16253/27149 cut-off events. [2024-10-24 19:00:00,479 INFO L125 PetriNetUnfolderBase]: For 127763/128567 co-relation queries the response was YES. [2024-10-24 19:00:00,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111228 conditions, 27149 events. 16253/27149 cut-off events. For 127763/128567 co-relation queries the response was YES. Maximal size of possible extension queue 1473. Compared 237584 event pairs, 3930 based on Foata normal form. 775/27046 useless extension candidates. Maximal degree in co-relation 111194. Up to 16155 conditions per place. [2024-10-24 19:00:00,700 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 103 selfloop transitions, 35 changer transitions 79/241 dead transitions. [2024-10-24 19:00:00,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 241 transitions, 2633 flow [2024-10-24 19:00:00,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 19:00:00,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 19:00:00,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 318 transitions. [2024-10-24 19:00:00,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5781818181818181 [2024-10-24 19:00:00,702 INFO L175 Difference]: Start difference. First operand has 92 places, 105 transitions, 923 flow. Second operand 10 states and 318 transitions. [2024-10-24 19:00:00,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 241 transitions, 2633 flow [2024-10-24 19:00:01,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 241 transitions, 2529 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-10-24 19:00:01,114 INFO L231 Difference]: Finished difference. Result has 106 places, 117 transitions, 1221 flow [2024-10-24 19:00:01,114 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1221, PETRI_PLACES=106, PETRI_TRANSITIONS=117} [2024-10-24 19:00:01,115 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 44 predicate places. [2024-10-24 19:00:01,115 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 117 transitions, 1221 flow [2024-10-24 19:00:01,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 24.11111111111111) internal successors, (217), 9 states have internal predecessors, (217), 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) [2024-10-24 19:00:01,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:00:01,116 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] [2024-10-24 19:00:01,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 19:00:01,116 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:00:01,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:00:01,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1569027798, now seen corresponding path program 2 times [2024-10-24 19:00:01,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:00:01,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243413196] [2024-10-24 19:00:01,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:00:01,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:00:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:00:01,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:00:01,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:00:01,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243413196] [2024-10-24 19:00:01,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243413196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:00:01,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:00:01,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:00:01,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161545354] [2024-10-24 19:00:01,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:00:01,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:00:01,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:00:01,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:00:01,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:00:01,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-10-24 19:00:01,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 117 transitions, 1221 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2024-10-24 19:00:01,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:00:01,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-10-24 19:00:01,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:00:08,391 INFO L124 PetriNetUnfolderBase]: 35009/52268 cut-off events. [2024-10-24 19:00:08,392 INFO L125 PetriNetUnfolderBase]: For 352973/372435 co-relation queries the response was YES. [2024-10-24 19:00:08,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219599 conditions, 52268 events. 35009/52268 cut-off events. For 352973/372435 co-relation queries the response was YES. Maximal size of possible extension queue 2451. Compared 411782 event pairs, 6280 based on Foata normal form. 8015/57439 useless extension candidates. Maximal degree in co-relation 219558. Up to 29172 conditions per place. [2024-10-24 19:00:09,085 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 151 selfloop transitions, 6 changer transitions 1/202 dead transitions. [2024-10-24 19:00:09,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 202 transitions, 2579 flow [2024-10-24 19:00:09,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:00:09,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:00:09,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-10-24 19:00:09,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-10-24 19:00:09,087 INFO L175 Difference]: Start difference. First operand has 106 places, 117 transitions, 1221 flow. Second operand 4 states and 146 transitions. [2024-10-24 19:00:09,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 202 transitions, 2579 flow [2024-10-24 19:00:10,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 202 transitions, 2442 flow, removed 68 selfloop flow, removed 7 redundant places. [2024-10-24 19:00:10,422 INFO L231 Difference]: Finished difference. Result has 94 places, 120 transitions, 1190 flow [2024-10-24 19:00:10,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=1160, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1190, PETRI_PLACES=94, PETRI_TRANSITIONS=120} [2024-10-24 19:00:10,426 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 32 predicate places. [2024-10-24 19:00:10,426 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 120 transitions, 1190 flow [2024-10-24 19:00:10,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2024-10-24 19:00:10,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:00:10,426 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] [2024-10-24 19:00:10,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 19:00:10,427 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:00:10,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:00:10,427 INFO L85 PathProgramCache]: Analyzing trace with hash -693483769, now seen corresponding path program 1 times [2024-10-24 19:00:10,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:00:10,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162408686] [2024-10-24 19:00:10,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:00:10,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:00:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:00:10,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:00:10,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:00:10,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162408686] [2024-10-24 19:00:10,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162408686] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:00:10,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:00:10,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:00:10,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847832166] [2024-10-24 19:00:10,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:00:10,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:00:10,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:00:10,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:00:10,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:00:10,829 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-10-24 19:00:10,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 120 transitions, 1190 flow. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-10-24 19:00:10,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:00:10,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-10-24 19:00:10,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:00:16,090 INFO L124 PetriNetUnfolderBase]: 28229/42432 cut-off events. [2024-10-24 19:00:16,090 INFO L125 PetriNetUnfolderBase]: For 217120/235841 co-relation queries the response was YES. [2024-10-24 19:00:16,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176333 conditions, 42432 events. 28229/42432 cut-off events. For 217120/235841 co-relation queries the response was YES. Maximal size of possible extension queue 2032. Compared 326006 event pairs, 3106 based on Foata normal form. 7085/47280 useless extension candidates. Maximal degree in co-relation 176295. Up to 16797 conditions per place. [2024-10-24 19:00:16,544 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 183 selfloop transitions, 10 changer transitions 6/243 dead transitions. [2024-10-24 19:00:16,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 243 transitions, 2981 flow [2024-10-24 19:00:16,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:00:16,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:00:16,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 186 transitions. [2024-10-24 19:00:16,545 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6763636363636364 [2024-10-24 19:00:16,545 INFO L175 Difference]: Start difference. First operand has 94 places, 120 transitions, 1190 flow. Second operand 5 states and 186 transitions. [2024-10-24 19:00:16,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 243 transitions, 2981 flow [2024-10-24 19:00:16,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 243 transitions, 2974 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-24 19:00:16,806 INFO L231 Difference]: Finished difference. Result has 99 places, 120 transitions, 1177 flow [2024-10-24 19:00:16,806 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1177, PETRI_PLACES=99, PETRI_TRANSITIONS=120} [2024-10-24 19:00:16,807 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 37 predicate places. [2024-10-24 19:00:16,807 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 120 transitions, 1177 flow [2024-10-24 19:00:16,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-10-24 19:00:16,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:00:16,807 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, 1, 1] [2024-10-24 19:00:16,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 19:00:16,807 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:00:16,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:00:16,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1667591127, now seen corresponding path program 1 times [2024-10-24 19:00:16,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:00:16,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547378259] [2024-10-24 19:00:16,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:00:16,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:00:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:00:17,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:00:17,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:00:17,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547378259] [2024-10-24 19:00:17,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547378259] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:00:17,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:00:17,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:00:17,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899801220] [2024-10-24 19:00:17,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:00:17,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:00:17,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:00:17,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:00:17,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:00:17,049 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-10-24 19:00:17,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 120 transitions, 1177 flow. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 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) [2024-10-24 19:00:17,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:00:17,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-10-24 19:00:17,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:00:22,935 INFO L124 PetriNetUnfolderBase]: 26082/44766 cut-off events. [2024-10-24 19:00:22,935 INFO L125 PetriNetUnfolderBase]: For 204588/217572 co-relation queries the response was YES. [2024-10-24 19:00:23,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186853 conditions, 44766 events. 26082/44766 cut-off events. For 204588/217572 co-relation queries the response was YES. Maximal size of possible extension queue 2556. Compared 425436 event pairs, 9436 based on Foata normal form. 4018/44658 useless extension candidates. Maximal degree in co-relation 186812. Up to 15622 conditions per place. [2024-10-24 19:00:23,464 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 119 selfloop transitions, 15 changer transitions 28/209 dead transitions. [2024-10-24 19:00:23,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 209 transitions, 2428 flow [2024-10-24 19:00:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:00:23,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:00:23,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 248 transitions. [2024-10-24 19:00:23,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6441558441558441 [2024-10-24 19:00:23,466 INFO L175 Difference]: Start difference. First operand has 99 places, 120 transitions, 1177 flow. Second operand 7 states and 248 transitions. [2024-10-24 19:00:23,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 209 transitions, 2428 flow [2024-10-24 19:00:23,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 209 transitions, 2409 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-10-24 19:00:23,778 INFO L231 Difference]: Finished difference. Result has 106 places, 126 transitions, 1288 flow [2024-10-24 19:00:23,779 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=1158, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1288, PETRI_PLACES=106, PETRI_TRANSITIONS=126} [2024-10-24 19:00:23,779 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 44 predicate places. [2024-10-24 19:00:23,779 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 126 transitions, 1288 flow [2024-10-24 19:00:23,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 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) [2024-10-24 19:00:23,780 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:00:23,780 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, 1, 1] [2024-10-24 19:00:23,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 19:00:23,780 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:00:23,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:00:23,780 INFO L85 PathProgramCache]: Analyzing trace with hash 902212767, now seen corresponding path program 1 times [2024-10-24 19:00:23,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:00:23,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60832929] [2024-10-24 19:00:23,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:00:23,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:00:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat