./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 773055aaa90ff8ec223993b190a157a4b1c15a4828ef014894ca730726d954aa --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:02:54,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:02:54,518 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 16:02:54,522 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:02:54,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:02:54,537 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:02:54,538 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:02:54,538 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:02:54,538 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:02:54,538 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:02:54,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:02:54,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:02:54,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:02:54,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:02:54,540 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:02:54,540 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:02:54,540 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 16:02:54,541 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:02:54,541 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 16:02:54,541 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:02:54,541 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 16:02:54,542 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 16:02:54,542 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 16:02:54,542 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:02:54,542 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 16:02:54,543 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:02:54,543 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:02:54,543 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 16:02:54,543 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:02:54,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:02:54,544 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:02:54,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:02:54,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:02:54,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:02:54,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:02:54,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:02:54,545 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:02:54,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:02:54,545 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:02:54,546 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:02:54,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:02:54,546 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:02:54,546 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 773055aaa90ff8ec223993b190a157a4b1c15a4828ef014894ca730726d954aa [2024-11-12 16:02:54,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:02:54,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:02:54,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:02:54,758 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:02:54,759 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:02:54,760 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2024-11-12 16:02:55,971 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:02:56,149 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:02:56,149 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2024-11-12 16:02:56,162 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50078bb81/6f30b2b4253349c897dbcddae37a15d6/FLAG17fdf4ce6 [2024-11-12 16:02:56,519 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50078bb81/6f30b2b4253349c897dbcddae37a15d6 [2024-11-12 16:02:56,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:02:56,522 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:02:56,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:02:56,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:02:56,527 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:02:56,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:02:56" (1/1) ... [2024-11-12 16:02:56,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b81caa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:56, skipping insertion in model container [2024-11-12 16:02:56,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:02:56" (1/1) ... [2024-11-12 16:02:56,564 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:02:56,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:02:56,928 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:02:56,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:02:57,022 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:02:57,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:57 WrapperNode [2024-11-12 16:02:57,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:02:57,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:02:57,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:02:57,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:02:57,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:57" (1/1) ... [2024-11-12 16:02:57,048 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:57" (1/1) ... [2024-11-12 16:02:57,078 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 132 [2024-11-12 16:02:57,082 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:02:57,083 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:02:57,083 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:02:57,083 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:02:57,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:57" (1/1) ... [2024-11-12 16:02:57,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:57" (1/1) ... [2024-11-12 16:02:57,098 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:57" (1/1) ... [2024-11-12 16:02:57,115 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 16:02:57,119 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:57" (1/1) ... [2024-11-12 16:02:57,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:57" (1/1) ... [2024-11-12 16:02:57,128 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:57" (1/1) ... [2024-11-12 16:02:57,129 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:57" (1/1) ... [2024-11-12 16:02:57,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:57" (1/1) ... [2024-11-12 16:02:57,135 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:57" (1/1) ... [2024-11-12 16:02:57,141 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:02:57,142 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:02:57,142 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:02:57,142 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:02:57,143 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:57" (1/1) ... [2024-11-12 16:02:57,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:02:57,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:02:57,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 16:02:57,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 16:02:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 16:02:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 16:02:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-12 16:02:57,211 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-12 16:02:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-12 16:02:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-12 16:02:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-12 16:02:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-12 16:02:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-12 16:02:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-12 16:02:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 16:02:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 16:02:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:02:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:02:57,215 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 16:02:57,353 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:02:57,355 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:02:57,643 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 16:02:57,644 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:02:57,801 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:02:57,802 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 16:02:57,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:02:57 BoogieIcfgContainer [2024-11-12 16:02:57,802 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:02:57,804 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:02:57,804 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:02:57,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:02:57,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:02:56" (1/3) ... [2024-11-12 16:02:57,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ee4fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:02:57, skipping insertion in model container [2024-11-12 16:02:57,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:57" (2/3) ... [2024-11-12 16:02:57,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ee4fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:02:57, skipping insertion in model container [2024-11-12 16:02:57,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:02:57" (3/3) ... [2024-11-12 16:02:57,810 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008_power.oepc_pso.oepc_rmo.oepc.i [2024-11-12 16:02:57,824 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:02:57,824 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-12 16:02:57,824 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 16:02:57,872 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 16:02:57,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-12 16:02:57,921 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-12 16:02:57,922 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:02:57,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-12 16:02:57,925 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-12 16:02:57,931 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-12 16:02:57,939 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:02:57,945 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;@39714578, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:02:57,945 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-12 16:02:57,948 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:02:57,948 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-12 16:02:57,948 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:02:57,948 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:02:57,949 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-12 16:02:57,949 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:02:57,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:02:57,958 INFO L85 PathProgramCache]: Analyzing trace with hash 12865631, now seen corresponding path program 1 times [2024-11-12 16:02:57,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:02:57,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844909666] [2024-11-12 16:02:57,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:02:57,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:02:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:02:58,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:02:58,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:02:58,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844909666] [2024-11-12 16:02:58,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844909666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:02:58,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:02:58,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:02:58,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996737755] [2024-11-12 16:02:58,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:02:58,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:02:58,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:02:58,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:02:58,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:02:58,355 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-11-12 16:02:58,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:02:58,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:02:58,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-11-12 16:02:58,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:02:59,147 INFO L124 PetriNetUnfolderBase]: 3311/5200 cut-off events. [2024-11-12 16:02:59,148 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-12 16:02:59,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9880 conditions, 5200 events. 3311/5200 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 33766 event pairs, 2177 based on Foata normal form. 288/5441 useless extension candidates. Maximal degree in co-relation 9868. Up to 3661 conditions per place. [2024-11-12 16:02:59,179 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 41 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2024-11-12 16:02:59,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 245 flow [2024-11-12 16:02:59,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:02:59,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:02:59,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-11-12 16:02:59,189 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2024-11-12 16:02:59,190 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 128 transitions. [2024-11-12 16:02:59,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 245 flow [2024-11-12 16:02:59,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-12 16:02:59,197 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-12 16:02:59,198 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-12 16:02:59,201 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-12 16:02:59,201 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-12 16:02:59,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:02:59,201 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:02:59,201 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:02:59,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:02:59,202 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:02:59,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:02:59,202 INFO L85 PathProgramCache]: Analyzing trace with hash -2133401607, now seen corresponding path program 1 times [2024-11-12 16:02:59,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:02:59,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270245950] [2024-11-12 16:02:59,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:02:59,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:02:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:02:59,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:02:59,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:02:59,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270245950] [2024-11-12 16:02:59,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270245950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:02:59,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:02:59,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:02:59,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749395503] [2024-11-12 16:02:59,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:02:59,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:02:59,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:02:59,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:02:59,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:02:59,278 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-12 16:02:59,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:02:59,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:02:59,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-12 16:02:59,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:02:59,840 INFO L124 PetriNetUnfolderBase]: 2903/4923 cut-off events. [2024-11-12 16:02:59,840 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-11-12 16:02:59,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9327 conditions, 4923 events. 2903/4923 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 35203 event pairs, 2903 based on Foata normal form. 144/4897 useless extension candidates. Maximal degree in co-relation 9317. Up to 4016 conditions per place. [2024-11-12 16:02:59,858 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 22 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-12 16:02:59,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 150 flow [2024-11-12 16:02:59,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:02:59,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:02:59,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-11-12 16:02:59,861 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-11-12 16:02:59,861 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 100 transitions. [2024-11-12 16:02:59,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 150 flow [2024-11-12 16:02:59,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:02:59,863 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-12 16:02:59,863 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-12 16:02:59,863 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-12 16:02:59,864 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-12 16:02:59,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:02:59,864 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:02:59,864 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:02:59,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:02:59,866 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:02:59,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:02:59,867 INFO L85 PathProgramCache]: Analyzing trace with hash -2133400387, now seen corresponding path program 1 times [2024-11-12 16:02:59,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:02:59,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513453016] [2024-11-12 16:02:59,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:02:59,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:02:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:00,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:00,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:00,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513453016] [2024-11-12 16:03:00,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513453016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:00,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:00,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:03:00,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820404612] [2024-11-12 16:03:00,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:00,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:03:00,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:00,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:03:00,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:03:00,081 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-11-12 16:03:00,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:00,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:00,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-11-12 16:03:00,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:05,100 INFO L124 PetriNetUnfolderBase]: 46399/66391 cut-off events. [2024-11-12 16:03:05,101 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:03:05,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128923 conditions, 66391 events. 46399/66391 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2703. Compared 486512 event pairs, 10672 based on Foata normal form. 0/64859 useless extension candidates. Maximal degree in co-relation 128917. Up to 24355 conditions per place. [2024-11-12 16:03:05,596 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 48 selfloop transitions, 9 changer transitions 109/178 dead transitions. [2024-11-12 16:03:05,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 178 transitions, 702 flow [2024-11-12 16:03:05,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 16:03:05,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 16:03:05,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 321 transitions. [2024-11-12 16:03:05,600 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6484848484848484 [2024-11-12 16:03:05,600 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 321 transitions. [2024-11-12 16:03:05,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 178 transitions, 702 flow [2024-11-12 16:03:05,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 178 transitions, 701 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:03:05,607 INFO L231 Difference]: Finished difference. Result has 70 places, 51 transitions, 221 flow [2024-11-12 16:03:05,608 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=221, PETRI_PLACES=70, PETRI_TRANSITIONS=51} [2024-11-12 16:03:05,608 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-12 16:03:05,609 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 51 transitions, 221 flow [2024-11-12 16:03:05,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:05,609 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:03:05,609 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:03:05,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 16:03:05,610 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:03:05,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:03:05,611 INFO L85 PathProgramCache]: Analyzing trace with hash -465878052, now seen corresponding path program 1 times [2024-11-12 16:03:05,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:03:05,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16005041] [2024-11-12 16:03:05,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:03:05,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:03:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:05,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:05,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:05,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16005041] [2024-11-12 16:03:05,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16005041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:05,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:05,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:03:05,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042277370] [2024-11-12 16:03:05,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:05,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:03:05,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:05,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:03:05,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:03:05,831 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-11-12 16:03:05,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 51 transitions, 221 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:05,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:05,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-11-12 16:03:05,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:10,405 INFO L124 PetriNetUnfolderBase]: 33090/48570 cut-off events. [2024-11-12 16:03:10,406 INFO L125 PetriNetUnfolderBase]: For 74105/75819 co-relation queries the response was YES. [2024-11-12 16:03:10,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146736 conditions, 48570 events. 33090/48570 cut-off events. For 74105/75819 co-relation queries the response was YES. Maximal size of possible extension queue 1935. Compared 360173 event pairs, 4838 based on Foata normal form. 1373/49787 useless extension candidates. Maximal degree in co-relation 146721. Up to 16625 conditions per place. [2024-11-12 16:03:10,720 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 68 selfloop transitions, 9 changer transitions 106/195 dead transitions. [2024-11-12 16:03:10,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 195 transitions, 1273 flow [2024-11-12 16:03:10,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 16:03:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 16:03:10,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 335 transitions. [2024-11-12 16:03:10,723 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6090909090909091 [2024-11-12 16:03:10,723 INFO L175 Difference]: Start difference. First operand has 70 places, 51 transitions, 221 flow. Second operand 10 states and 335 transitions. [2024-11-12 16:03:10,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 195 transitions, 1273 flow [2024-11-12 16:03:11,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 195 transitions, 1115 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-11-12 16:03:11,035 INFO L231 Difference]: Finished difference. Result has 77 places, 56 transitions, 287 flow [2024-11-12 16:03:11,035 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=287, PETRI_PLACES=77, PETRI_TRANSITIONS=56} [2024-11-12 16:03:11,036 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-11-12 16:03:11,036 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 56 transitions, 287 flow [2024-11-12 16:03:11,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:11,037 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:03:11,037 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:03:11,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 16:03:11,037 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:03:11,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:03:11,038 INFO L85 PathProgramCache]: Analyzing trace with hash 570133034, now seen corresponding path program 1 times [2024-11-12 16:03:11,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:03:11,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508294168] [2024-11-12 16:03:11,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:03:11,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:03:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:11,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:11,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:11,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508294168] [2024-11-12 16:03:11,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508294168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:11,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:11,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:03:11,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766656745] [2024-11-12 16:03:11,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:11,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:03:11,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:11,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:03:11,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:03:11,209 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-11-12 16:03:11,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 56 transitions, 287 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:11,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:11,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-11-12 16:03:11,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:15,394 INFO L124 PetriNetUnfolderBase]: 28719/42234 cut-off events. [2024-11-12 16:03:15,394 INFO L125 PetriNetUnfolderBase]: For 98670/99593 co-relation queries the response was YES. [2024-11-12 16:03:15,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133612 conditions, 42234 events. 28719/42234 cut-off events. For 98670/99593 co-relation queries the response was YES. Maximal size of possible extension queue 1549. Compared 302223 event pairs, 3729 based on Foata normal form. 921/42943 useless extension candidates. Maximal degree in co-relation 133590. Up to 16401 conditions per place. [2024-11-12 16:03:15,599 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 68 selfloop transitions, 15 changer transitions 94/189 dead transitions. [2024-11-12 16:03:15,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 189 transitions, 1297 flow [2024-11-12 16:03:15,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 16:03:15,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 16:03:15,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 325 transitions. [2024-11-12 16:03:15,603 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5909090909090909 [2024-11-12 16:03:15,603 INFO L175 Difference]: Start difference. First operand has 77 places, 56 transitions, 287 flow. Second operand 10 states and 325 transitions. [2024-11-12 16:03:15,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 189 transitions, 1297 flow [2024-11-12 16:03:16,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 189 transitions, 1250 flow, removed 21 selfloop flow, removed 3 redundant places. [2024-11-12 16:03:16,087 INFO L231 Difference]: Finished difference. Result has 86 places, 65 transitions, 453 flow [2024-11-12 16:03:16,088 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=453, PETRI_PLACES=86, PETRI_TRANSITIONS=65} [2024-11-12 16:03:16,088 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 24 predicate places. [2024-11-12 16:03:16,088 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 65 transitions, 453 flow [2024-11-12 16:03:16,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:16,089 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:03:16,089 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:03:16,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 16:03:16,089 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:03:16,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:03:16,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1479422698, now seen corresponding path program 1 times [2024-11-12 16:03:16,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:03:16,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280968181] [2024-11-12 16:03:16,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:03:16,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:03:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:16,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:16,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:16,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280968181] [2024-11-12 16:03:16,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280968181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:16,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:16,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:03:16,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684970996] [2024-11-12 16:03:16,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:16,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:03:16,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:16,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:03:16,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:03:16,219 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-11-12 16:03:16,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 65 transitions, 453 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:16,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:16,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-11-12 16:03:16,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:20,046 INFO L124 PetriNetUnfolderBase]: 26763/38904 cut-off events. [2024-11-12 16:03:20,047 INFO L125 PetriNetUnfolderBase]: For 128144/128312 co-relation queries the response was YES. [2024-11-12 16:03:20,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135196 conditions, 38904 events. 26763/38904 cut-off events. For 128144/128312 co-relation queries the response was YES. Maximal size of possible extension queue 1352. Compared 269859 event pairs, 5723 based on Foata normal form. 726/39613 useless extension candidates. Maximal degree in co-relation 135166. Up to 17803 conditions per place. [2024-11-12 16:03:20,251 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 69 selfloop transitions, 30 changer transitions 78/189 dead transitions. [2024-11-12 16:03:20,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 189 transitions, 1456 flow [2024-11-12 16:03:20,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 16:03:20,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 16:03:20,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 329 transitions. [2024-11-12 16:03:20,252 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5981818181818181 [2024-11-12 16:03:20,252 INFO L175 Difference]: Start difference. First operand has 86 places, 65 transitions, 453 flow. Second operand 10 states and 329 transitions. [2024-11-12 16:03:20,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 189 transitions, 1456 flow [2024-11-12 16:03:21,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 189 transitions, 1360 flow, removed 45 selfloop flow, removed 7 redundant places. [2024-11-12 16:03:21,116 INFO L231 Difference]: Finished difference. Result has 90 places, 74 transitions, 609 flow [2024-11-12 16:03:21,117 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=609, PETRI_PLACES=90, PETRI_TRANSITIONS=74} [2024-11-12 16:03:21,117 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 28 predicate places. [2024-11-12 16:03:21,117 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 74 transitions, 609 flow [2024-11-12 16:03:21,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:21,117 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:03:21,118 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:03:21,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 16:03:21,118 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:03:21,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:03:21,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1766035693, now seen corresponding path program 1 times [2024-11-12 16:03:21,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:03:21,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607875224] [2024-11-12 16:03:21,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:03:21,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:03:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:21,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:21,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:21,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607875224] [2024-11-12 16:03:21,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607875224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:21,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:21,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:03:21,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052265792] [2024-11-12 16:03:21,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:21,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:03:21,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:21,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:03:21,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:03:21,352 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-12 16:03:21,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 74 transitions, 609 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:21,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:21,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-12 16:03:21,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:27,129 INFO L124 PetriNetUnfolderBase]: 37969/57579 cut-off events. [2024-11-12 16:03:27,129 INFO L125 PetriNetUnfolderBase]: For 82794/87510 co-relation queries the response was YES. [2024-11-12 16:03:27,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149123 conditions, 57579 events. 37969/57579 cut-off events. For 82794/87510 co-relation queries the response was YES. Maximal size of possible extension queue 2017. Compared 444462 event pairs, 5883 based on Foata normal form. 2736/58919 useless extension candidates. Maximal degree in co-relation 149090. Up to 30569 conditions per place. [2024-11-12 16:03:27,521 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 60 selfloop transitions, 6 changer transitions 0/110 dead transitions. [2024-11-12 16:03:27,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 110 transitions, 879 flow [2024-11-12 16:03:27,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:03:27,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:03:27,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-11-12 16:03:27,522 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-11-12 16:03:27,523 INFO L175 Difference]: Start difference. First operand has 90 places, 74 transitions, 609 flow. Second operand 4 states and 146 transitions. [2024-11-12 16:03:27,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 110 transitions, 879 flow [2024-11-12 16:03:27,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 110 transitions, 839 flow, removed 20 selfloop flow, removed 10 redundant places. [2024-11-12 16:03:27,906 INFO L231 Difference]: Finished difference. Result has 79 places, 79 transitions, 615 flow [2024-11-12 16:03:27,907 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=615, PETRI_PLACES=79, PETRI_TRANSITIONS=79} [2024-11-12 16:03:27,907 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 17 predicate places. [2024-11-12 16:03:27,908 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 79 transitions, 615 flow [2024-11-12 16:03:27,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:27,908 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:03:27,908 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:03:27,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 16:03:27,908 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:03:27,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:03:27,909 INFO L85 PathProgramCache]: Analyzing trace with hash -397688725, now seen corresponding path program 1 times [2024-11-12 16:03:27,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:03:27,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447636713] [2024-11-12 16:03:27,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:03:27,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:03:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:28,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:28,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:28,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447636713] [2024-11-12 16:03:28,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447636713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:28,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:28,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 16:03:28,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599281582] [2024-11-12 16:03:28,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:28,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:03:28,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:28,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:03:28,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:03:28,094 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-11-12 16:03:28,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 79 transitions, 615 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:28,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:28,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-11-12 16:03:28,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand