./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --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/weaver/parallel-barrier.wvr.c -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 b78dfc9c2705d92d2bcea2c224e1a0e17a9d3d516f404185e5eda6bc0d05a15c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:24:48,902 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:24:48,969 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 16:24:48,972 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:24:48,973 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:24:48,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:24:48,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:24:48,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:24:48,995 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:24:48,995 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:24:48,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:24:48,996 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:24:48,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:24:48,997 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:24:48,998 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:24:48,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:24:48,998 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 16:24:48,998 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:24:48,999 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 16:24:48,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:24:49,000 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 16:24:49,003 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 16:24:49,004 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 16:24:49,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:24:49,004 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 16:24:49,004 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:24:49,004 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:24:49,004 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 16:24:49,005 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:24:49,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:24:49,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:24:49,005 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:24:49,006 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:24:49,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:24:49,006 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:24:49,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:24:49,007 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:24:49,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:24:49,007 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:24:49,007 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:24:49,007 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:24:49,008 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:24:49,008 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78dfc9c2705d92d2bcea2c224e1a0e17a9d3d516f404185e5eda6bc0d05a15c [2024-11-12 16:24:49,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:24:49,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:24:49,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:24:49,237 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:24:49,237 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:24:49,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2024-11-12 16:24:50,491 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:24:50,648 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:24:50,649 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2024-11-12 16:24:50,655 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a35125523/4aae6637c61042c79c7ef85615f5d180/FLAG4d7f97091 [2024-11-12 16:24:50,667 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a35125523/4aae6637c61042c79c7ef85615f5d180 [2024-11-12 16:24:50,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:24:50,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:24:50,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:24:50,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:24:50,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:24:50,676 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:24:50" (1/1) ... [2024-11-12 16:24:50,679 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aba43a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:24:50, skipping insertion in model container [2024-11-12 16:24:50,679 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:24:50" (1/1) ... [2024-11-12 16:24:50,705 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:24:50,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:24:50,892 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:24:50,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:24:50,928 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:24:50,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:24:50 WrapperNode [2024-11-12 16:24:50,929 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:24:50,930 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:24:50,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:24:50,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:24:50,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:24:50" (1/1) ... [2024-11-12 16:24:50,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:24:50" (1/1) ... [2024-11-12 16:24:50,966 INFO L138 Inliner]: procedures = 22, calls = 21, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 212 [2024-11-12 16:24:50,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:24:50,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:24:50,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:24:50,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:24:50,976 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:24:50" (1/1) ... [2024-11-12 16:24:50,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:24:50" (1/1) ... [2024-11-12 16:24:50,979 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:24:50" (1/1) ... [2024-11-12 16:24:50,995 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 16:24:50,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:24:50" (1/1) ... [2024-11-12 16:24:50,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:24:50" (1/1) ... [2024-11-12 16:24:50,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:24:50" (1/1) ... [2024-11-12 16:24:51,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:24:50" (1/1) ... [2024-11-12 16:24:51,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:24:50" (1/1) ... [2024-11-12 16:24:51,003 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:24:50" (1/1) ... [2024-11-12 16:24:51,005 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:24:51,006 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:24:51,006 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:24:51,006 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:24:51,007 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:24:50" (1/1) ... [2024-11-12 16:24:51,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:24:51,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:24:51,041 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 16:24:51,044 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 16:24:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 16:24:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-12 16:24:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-12 16:24:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-12 16:24:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-12 16:24:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-12 16:24:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-12 16:24:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-12 16:24:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-12 16:24:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 16:24:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-12 16:24:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-12 16:24:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-12 16:24:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-12 16:24:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:24:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:24:51,085 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 16:24:51,195 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:24:51,198 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:24:51,462 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 16:24:51,462 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:24:51,626 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:24:51,626 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 16:24:51,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:24:51 BoogieIcfgContainer [2024-11-12 16:24:51,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:24:51,628 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:24:51,628 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:24:51,632 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:24:51,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:24:50" (1/3) ... [2024-11-12 16:24:51,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405ce0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:24:51, skipping insertion in model container [2024-11-12 16:24:51,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:24:50" (2/3) ... [2024-11-12 16:24:51,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405ce0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:24:51, skipping insertion in model container [2024-11-12 16:24:51,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:24:51" (3/3) ... [2024-11-12 16:24:51,636 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2024-11-12 16:24:51,651 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:24:51,651 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 16:24:51,651 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 16:24:51,723 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-11-12 16:24:51,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 84 transitions, 234 flow [2024-11-12 16:24:51,792 INFO L124 PetriNetUnfolderBase]: 4/72 cut-off events. [2024-11-12 16:24:51,792 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 16:24:51,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 72 events. 4/72 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 120 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 68. Up to 3 conditions per place. [2024-11-12 16:24:51,797 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 84 transitions, 234 flow [2024-11-12 16:24:51,803 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 71 transitions, 190 flow [2024-11-12 16:24:51,810 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:24:51,816 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;@77f2a1a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:24:51,816 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-12 16:24:51,834 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:24:51,834 INFO L124 PetriNetUnfolderBase]: 4/68 cut-off events. [2024-11-12 16:24:51,834 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 16:24:51,834 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:24:51,835 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, 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, 1, 1, 1, 1, 1, 1] [2024-11-12 16:24:51,835 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-12 16:24:51,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:24:51,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1563154494, now seen corresponding path program 1 times [2024-11-12 16:24:51,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:24:51,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379123242] [2024-11-12 16:24:51,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:24:51,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:24:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:24:52,239 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 16:24:52,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:24:52,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379123242] [2024-11-12 16:24:52,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379123242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:24:52,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:24:52,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:24:52,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627584061] [2024-11-12 16:24:52,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:24:52,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:24:52,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:24:52,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:24:52,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:24:52,329 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 88 [2024-11-12 16:24:52,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 71 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 16:24:52,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:24:52,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 88 [2024-11-12 16:24:52,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:24:54,076 INFO L124 PetriNetUnfolderBase]: 14053/19485 cut-off events. [2024-11-12 16:24:54,077 INFO L125 PetriNetUnfolderBase]: For 1965/1965 co-relation queries the response was YES. [2024-11-12 16:24:54,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41069 conditions, 19485 events. 14053/19485 cut-off events. For 1965/1965 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 109115 event pairs, 8277 based on Foata normal form. 489/18937 useless extension candidates. Maximal degree in co-relation 40672. Up to 13270 conditions per place. [2024-11-12 16:24:54,210 INFO L140 encePairwiseOnDemand]: 82/88 looper letters, 67 selfloop transitions, 4 changer transitions 0/90 dead transitions. [2024-11-12 16:24:54,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 90 transitions, 391 flow [2024-11-12 16:24:54,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:24:54,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:24:54,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2024-11-12 16:24:54,223 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.571969696969697 [2024-11-12 16:24:54,224 INFO L175 Difference]: Start difference. First operand has 86 places, 71 transitions, 190 flow. Second operand 3 states and 151 transitions. [2024-11-12 16:24:54,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 90 transitions, 391 flow [2024-11-12 16:24:54,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 90 transitions, 345 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-12 16:24:54,297 INFO L231 Difference]: Finished difference. Result has 75 places, 69 transitions, 168 flow [2024-11-12 16:24:54,299 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=75, PETRI_TRANSITIONS=69} [2024-11-12 16:24:54,303 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -11 predicate places. [2024-11-12 16:24:54,304 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 69 transitions, 168 flow [2024-11-12 16:24:54,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 16:24:54,304 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:24:54,304 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, 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, 1, 1, 1, 1, 1, 1] [2024-11-12 16:24:54,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:24:54,305 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-12 16:24:54,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:24:54,307 INFO L85 PathProgramCache]: Analyzing trace with hash 506626490, now seen corresponding path program 2 times [2024-11-12 16:24:54,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:24:54,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434736741] [2024-11-12 16:24:54,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:24:54,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:24:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:24:54,471 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 16:24:54,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:24:54,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434736741] [2024-11-12 16:24:54,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434736741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:24:54,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:24:54,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:24:54,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253168676] [2024-11-12 16:24:54,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:24:54,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:24:54,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:24:54,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:24:54,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:24:54,479 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 88 [2024-11-12 16:24:54,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 69 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 16:24:54,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:24:54,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 88 [2024-11-12 16:24:54,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:24:55,646 INFO L124 PetriNetUnfolderBase]: 13081/18814 cut-off events. [2024-11-12 16:24:55,646 INFO L125 PetriNetUnfolderBase]: For 1234/1234 co-relation queries the response was YES. [2024-11-12 16:24:55,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37572 conditions, 18814 events. 13081/18814 cut-off events. For 1234/1234 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 113641 event pairs, 7989 based on Foata normal form. 316/17880 useless extension candidates. Maximal degree in co-relation 15654. Up to 13117 conditions per place. [2024-11-12 16:24:55,726 INFO L140 encePairwiseOnDemand]: 83/88 looper letters, 68 selfloop transitions, 4 changer transitions 0/91 dead transitions. [2024-11-12 16:24:55,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 91 transitions, 369 flow [2024-11-12 16:24:55,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:24:55,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:24:55,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2024-11-12 16:24:55,730 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.571969696969697 [2024-11-12 16:24:55,731 INFO L175 Difference]: Start difference. First operand has 75 places, 69 transitions, 168 flow. Second operand 3 states and 151 transitions. [2024-11-12 16:24:55,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 91 transitions, 369 flow [2024-11-12 16:24:55,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 91 transitions, 359 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:24:55,734 INFO L231 Difference]: Finished difference. Result has 76 places, 69 transitions, 174 flow [2024-11-12 16:24:55,735 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=76, PETRI_TRANSITIONS=69} [2024-11-12 16:24:55,735 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -10 predicate places. [2024-11-12 16:24:55,735 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 69 transitions, 174 flow [2024-11-12 16:24:55,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 16:24:55,736 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:24:55,736 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, 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, 1, 1, 1, 1, 1, 1] [2024-11-12 16:24:55,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:24:55,737 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-12 16:24:55,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:24:55,738 INFO L85 PathProgramCache]: Analyzing trace with hash -2103626852, now seen corresponding path program 3 times [2024-11-12 16:24:55,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:24:55,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007151390] [2024-11-12 16:24:55,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:24:55,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:24:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:24:55,840 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 16:24:55,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:24:55,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007151390] [2024-11-12 16:24:55,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007151390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:24:55,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:24:55,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:24:55,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080242811] [2024-11-12 16:24:55,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:24:55,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:24:55,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:24:55,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:24:55,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:24:55,848 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 88 [2024-11-12 16:24:55,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 69 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 16:24:55,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:24:55,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 88 [2024-11-12 16:24:55,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:24:56,916 INFO L124 PetriNetUnfolderBase]: 11919/16775 cut-off events. [2024-11-12 16:24:56,917 INFO L125 PetriNetUnfolderBase]: For 1661/1683 co-relation queries the response was YES. [2024-11-12 16:24:56,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34598 conditions, 16775 events. 11919/16775 cut-off events. For 1661/1683 co-relation queries the response was YES. Maximal size of possible extension queue 540. Compared 94819 event pairs, 7037 based on Foata normal form. 251/16050 useless extension candidates. Maximal degree in co-relation 13404. Up to 11081 conditions per place. [2024-11-12 16:24:57,006 INFO L140 encePairwiseOnDemand]: 83/88 looper letters, 69 selfloop transitions, 4 changer transitions 0/92 dead transitions. [2024-11-12 16:24:57,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 92 transitions, 379 flow [2024-11-12 16:24:57,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:24:57,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:24:57,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2024-11-12 16:24:57,011 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-11-12 16:24:57,011 INFO L175 Difference]: Start difference. First operand has 76 places, 69 transitions, 174 flow. Second operand 3 states and 152 transitions. [2024-11-12 16:24:57,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 92 transitions, 379 flow [2024-11-12 16:24:57,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 92 transitions, 369 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:24:57,015 INFO L231 Difference]: Finished difference. Result has 77 places, 69 transitions, 180 flow [2024-11-12 16:24:57,015 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=77, PETRI_TRANSITIONS=69} [2024-11-12 16:24:57,015 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -9 predicate places. [2024-11-12 16:24:57,016 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 69 transitions, 180 flow [2024-11-12 16:24:57,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 16:24:57,016 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:24:57,016 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, 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, 1, 1, 1, 1, 1, 1] [2024-11-12 16:24:57,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 16:24:57,017 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-12 16:24:57,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:24:57,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1531433938, now seen corresponding path program 4 times [2024-11-12 16:24:57,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:24:57,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585663346] [2024-11-12 16:24:57,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:24:57,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:24:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:24:57,843 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 16:24:57,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:24:57,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585663346] [2024-11-12 16:24:57,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585663346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:24:57,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:24:57,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-12 16:24:57,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469939758] [2024-11-12 16:24:57,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:24:57,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-12 16:24:57,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:24:57,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-12 16:24:57,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2024-11-12 16:24:57,872 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 88 [2024-11-12 16:24:57,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 69 transitions, 180 flow. Second operand has 20 states, 20 states have (on average 19.75) internal successors, (395), 20 states have internal predecessors, (395), 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 16:24:57,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:24:57,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 88 [2024-11-12 16:24:57,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:25:03,054 INFO L124 PetriNetUnfolderBase]: 48491/64972 cut-off events. [2024-11-12 16:25:03,054 INFO L125 PetriNetUnfolderBase]: For 8353/8353 co-relation queries the response was YES. [2024-11-12 16:25:03,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136634 conditions, 64972 events. 48491/64972 cut-off events. For 8353/8353 co-relation queries the response was YES. Maximal size of possible extension queue 1240. Compared 355236 event pairs, 5614 based on Foata normal form. 1/62559 useless extension candidates. Maximal degree in co-relation 62599. Up to 35181 conditions per place. [2024-11-12 16:25:03,320 INFO L140 encePairwiseOnDemand]: 68/88 looper letters, 352 selfloop transitions, 87 changer transitions 32/481 dead transitions. [2024-11-12 16:25:03,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 481 transitions, 2132 flow [2024-11-12 16:25:03,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-12 16:25:03,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-12 16:25:03,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 982 transitions. [2024-11-12 16:25:03,326 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37196969696969695 [2024-11-12 16:25:03,326 INFO L175 Difference]: Start difference. First operand has 77 places, 69 transitions, 180 flow. Second operand 30 states and 982 transitions. [2024-11-12 16:25:03,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 481 transitions, 2132 flow [2024-11-12 16:25:03,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 481 transitions, 2104 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:25:03,362 INFO L231 Difference]: Finished difference. Result has 121 places, 161 transitions, 705 flow [2024-11-12 16:25:03,362 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=705, PETRI_PLACES=121, PETRI_TRANSITIONS=161} [2024-11-12 16:25:03,363 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, 35 predicate places. [2024-11-12 16:25:03,364 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 161 transitions, 705 flow [2024-11-12 16:25:03,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 19.75) internal successors, (395), 20 states have internal predecessors, (395), 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 16:25:03,364 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:25:03,364 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, 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, 1, 1, 1, 1, 1, 1] [2024-11-12 16:25:03,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 16:25:03,365 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-12 16:25:03,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:25:03,365 INFO L85 PathProgramCache]: Analyzing trace with hash 928168574, now seen corresponding path program 5 times [2024-11-12 16:25:03,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:25:03,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117354705] [2024-11-12 16:25:03,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:03,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:25:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:04,140 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 16:25:04,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:25:04,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117354705] [2024-11-12 16:25:04,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117354705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:25:04,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:25:04,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-12 16:25:04,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043733175] [2024-11-12 16:25:04,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:25:04,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-12 16:25:04,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:25:04,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-12 16:25:04,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2024-11-12 16:25:04,203 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 88 [2024-11-12 16:25:04,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 161 transitions, 705 flow. Second operand has 21 states, 21 states have (on average 19.61904761904762) internal successors, (412), 21 states have internal predecessors, (412), 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 16:25:04,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:25:04,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 88 [2024-11-12 16:25:04,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:25:14,556 INFO L124 PetriNetUnfolderBase]: 77208/102687 cut-off events. [2024-11-12 16:25:14,556 INFO L125 PetriNetUnfolderBase]: For 128299/128299 co-relation queries the response was YES. [2024-11-12 16:25:14,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290728 conditions, 102687 events. 77208/102687 cut-off events. For 128299/128299 co-relation queries the response was YES. Maximal size of possible extension queue 1781. Compared 583619 event pairs, 7441 based on Foata normal form. 1/98563 useless extension candidates. Maximal degree in co-relation 290693. Up to 51214 conditions per place. [2024-11-12 16:25:15,397 INFO L140 encePairwiseOnDemand]: 65/88 looper letters, 843 selfloop transitions, 388 changer transitions 9/1250 dead transitions. [2024-11-12 16:25:15,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 1250 transitions, 7322 flow [2024-11-12 16:25:15,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2024-11-12 16:25:15,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2024-11-12 16:25:15,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 2854 transitions. [2024-11-12 16:25:15,406 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3211071107110711 [2024-11-12 16:25:15,407 INFO L175 Difference]: Start difference. First operand has 121 places, 161 transitions, 705 flow. Second operand 101 states and 2854 transitions. [2024-11-12 16:25:15,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 1250 transitions, 7322 flow [2024-11-12 16:25:17,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 1250 transitions, 7224 flow, removed 49 selfloop flow, removed 2 redundant places. [2024-11-12 16:25:17,629 INFO L231 Difference]: Finished difference. Result has 258 places, 569 transitions, 4133 flow [2024-11-12 16:25:17,630 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=101, PETRI_FLOW=4133, PETRI_PLACES=258, PETRI_TRANSITIONS=569} [2024-11-12 16:25:17,630 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, 172 predicate places. [2024-11-12 16:25:17,631 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 569 transitions, 4133 flow [2024-11-12 16:25:17,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 19.61904761904762) internal successors, (412), 21 states have internal predecessors, (412), 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 16:25:17,631 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:25:17,631 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, 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, 1, 1, 1, 1, 1, 1] [2024-11-12 16:25:17,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 16:25:17,632 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-12 16:25:17,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:25:17,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1535986236, now seen corresponding path program 6 times [2024-11-12 16:25:17,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:25:17,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778386999] [2024-11-12 16:25:17,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:17,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:25:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:17,716 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 16:25:17,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:25:17,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778386999] [2024-11-12 16:25:17,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778386999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:25:17,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:25:17,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:25:17,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539308493] [2024-11-12 16:25:17,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:25:17,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:25:17,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:25:17,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:25:17,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:25:17,722 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 88 [2024-11-12 16:25:17,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 569 transitions, 4133 flow. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 16:25:17,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:25:17,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 88 [2024-11-12 16:25:17,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:25:24,588 INFO L124 PetriNetUnfolderBase]: 40710/57870 cut-off events. [2024-11-12 16:25:24,588 INFO L125 PetriNetUnfolderBase]: For 755384/756349 co-relation queries the response was YES. [2024-11-12 16:25:25,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222581 conditions, 57870 events. 40710/57870 cut-off events. For 755384/756349 co-relation queries the response was YES. Maximal size of possible extension queue 1624. Compared 373139 event pairs, 15860 based on Foata normal form. 2093/55917 useless extension candidates. Maximal degree in co-relation 219074. Up to 33869 conditions per place. [2024-11-12 16:25:25,424 INFO L140 encePairwiseOnDemand]: 83/88 looper letters, 277 selfloop transitions, 6 changer transitions 0/592 dead transitions. [2024-11-12 16:25:25,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 592 transitions, 4881 flow [2024-11-12 16:25:25,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:25:25,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:25:25,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2024-11-12 16:25:25,426 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5643939393939394 [2024-11-12 16:25:25,426 INFO L175 Difference]: Start difference. First operand has 258 places, 569 transitions, 4133 flow. Second operand 3 states and 149 transitions. [2024-11-12 16:25:25,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 592 transitions, 4881 flow [2024-11-12 16:25:31,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 592 transitions, 3744 flow, removed 552 selfloop flow, removed 5 redundant places. [2024-11-12 16:25:31,830 INFO L231 Difference]: Finished difference. Result has 254 places, 521 transitions, 2832 flow [2024-11-12 16:25:31,831 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=2790, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2832, PETRI_PLACES=254, PETRI_TRANSITIONS=521} [2024-11-12 16:25:31,831 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, 168 predicate places. [2024-11-12 16:25:31,831 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 521 transitions, 2832 flow [2024-11-12 16:25:31,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 16:25:31,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:25:31,832 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, 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, 1, 1, 1, 1, 1, 1] [2024-11-12 16:25:31,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 16:25:31,832 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-12 16:25:31,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:25:31,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1756051593, now seen corresponding path program 1 times [2024-11-12 16:25:31,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:25:31,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548307354] [2024-11-12 16:25:31,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:31,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:25:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:32,333 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 16:25:32,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:25:32,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548307354] [2024-11-12 16:25:32,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548307354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:25:32,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:25:32,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-12 16:25:32,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849529103] [2024-11-12 16:25:32,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:25:32,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-12 16:25:32,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:25:32,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-12 16:25:32,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-12 16:25:32,359 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 88 [2024-11-12 16:25:32,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 521 transitions, 2832 flow. Second operand has 22 states, 22 states have (on average 19.5) internal successors, (429), 22 states have internal predecessors, (429), 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 16:25:32,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:25:32,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 88 [2024-11-12 16:25:32,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand