./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/bin/uautomizer-verify-jihMAELWvX --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 981eae178b9cad0bb64b87dda8360f4f1e2e23d7b9d396f9db2ad5a6977098c4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:37:23,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:37:23,670 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-08 18:37:23,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:37:23,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:37:23,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:37:23,714 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:37:23,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:37:23,715 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:37:23,715 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:37:23,715 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:37:23,716 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:37:23,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:37:23,717 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:37:23,721 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:37:23,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:37:23,721 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:37:23,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:37:23,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:37:23,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:37:23,723 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 18:37:23,726 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 18:37:23,727 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 18:37:23,727 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:37:23,727 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:37:23,728 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:37:23,728 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:37:23,728 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:37:23,728 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:37:23,729 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:37:23,729 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:37:23,729 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:37:23,730 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:37:23,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:37:23,734 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:37:23,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:37:23,734 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:37:23,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:37:23,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:37:23,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:37:23,735 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:37:23,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:37:23,737 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 981eae178b9cad0bb64b87dda8360f4f1e2e23d7b9d396f9db2ad5a6977098c4 [2024-11-08 18:37:24,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:37:24,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:37:24,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:37:24,047 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:37:24,048 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:37:24,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c Unable to find full path for "g++" [2024-11-08 18:37:26,134 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:37:26,328 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:37:26,329 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2024-11-08 18:37:26,338 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/bin/uautomizer-verify-jihMAELWvX/data/4245e6d87/ad881eadd7e745a29a077a6e24abf873/FLAGaba3a0e75 [2024-11-08 18:37:26,351 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/bin/uautomizer-verify-jihMAELWvX/data/4245e6d87/ad881eadd7e745a29a077a6e24abf873 [2024-11-08 18:37:26,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:37:26,355 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:37:26,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:37:26,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:37:26,363 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:37:26,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:37:26" (1/1) ... [2024-11-08 18:37:26,365 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de78785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:26, skipping insertion in model container [2024-11-08 18:37:26,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:37:26" (1/1) ... [2024-11-08 18:37:26,398 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:37:26,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:37:26,627 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:37:26,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:37:26,669 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:37:26,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:26 WrapperNode [2024-11-08 18:37:26,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:37:26,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:37:26,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:37:26,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:37:26,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:26" (1/1) ... [2024-11-08 18:37:26,689 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:26" (1/1) ... [2024-11-08 18:37:26,711 INFO L138 Inliner]: procedures = 20, calls = 14, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 94 [2024-11-08 18:37:26,712 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:37:26,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:37:26,713 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:37:26,713 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:37:26,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:26" (1/1) ... [2024-11-08 18:37:26,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:26" (1/1) ... [2024-11-08 18:37:26,726 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:26" (1/1) ... [2024-11-08 18:37:26,741 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]. [2024-11-08 18:37:26,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:26" (1/1) ... [2024-11-08 18:37:26,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:26" (1/1) ... [2024-11-08 18:37:26,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:26" (1/1) ... [2024-11-08 18:37:26,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:26" (1/1) ... [2024-11-08 18:37:26,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:26" (1/1) ... [2024-11-08 18:37:26,759 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:26" (1/1) ... [2024-11-08 18:37:26,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:37:26,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:37:26,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:37:26,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:37:26,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:26" (1/1) ... [2024-11-08 18:37:26,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:37:26,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:26,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:26,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0ac88c-fa55-4f6f-ba41-b7d096431b7c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:37:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:37:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 18:37:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 18:37:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 18:37:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 18:37:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-08 18:37:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-08 18:37:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-08 18:37:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-08 18:37:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:37:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:37:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:37:26,849 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:37:26,976 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:37:26,979 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:37:27,310 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:37:27,310 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:37:27,511 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:37:27,512 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:37:27,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:37:27 BoogieIcfgContainer [2024-11-08 18:37:27,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:37:27,516 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:37:27,518 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:37:27,522 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:37:27,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:37:26" (1/3) ... [2024-11-08 18:37:27,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693ac8c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:37:27, skipping insertion in model container [2024-11-08 18:37:27,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:26" (2/3) ... [2024-11-08 18:37:27,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693ac8c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:37:27, skipping insertion in model container [2024-11-08 18:37:27,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:37:27" (3/3) ... [2024-11-08 18:37:27,527 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-counter-determinism.wvr.c [2024-11-08 18:37:27,549 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:37:27,549 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:37:27,549 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:37:27,632 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 18:37:27,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 54 transitions, 136 flow [2024-11-08 18:37:27,708 INFO L124 PetriNetUnfolderBase]: 8/50 cut-off events. [2024-11-08 18:37:27,708 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 18:37:27,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 50 events. 8/50 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 92 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-08 18:37:27,714 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 54 transitions, 136 flow [2024-11-08 18:37:27,718 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 49 transitions, 122 flow [2024-11-08 18:37:27,736 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:37:27,743 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;@3354a01b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:37:27,743 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-08 18:37:27,762 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:37:27,762 INFO L124 PetriNetUnfolderBase]: 8/46 cut-off events. [2024-11-08 18:37:27,762 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 18:37:27,762 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:37:27,763 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:37:27,764 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 18:37:27,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:27,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1980230844, now seen corresponding path program 1 times [2024-11-08 18:37:27,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:27,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246913726] [2024-11-08 18:37:27,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:27,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:37:28,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:37:28,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246913726] [2024-11-08 18:37:28,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246913726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:28,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:28,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:37:28,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973683541] [2024-11-08 18:37:28,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:28,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:37:28,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:37:28,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:37:28,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:37:28,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-11-08 18:37:28,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-08 18:37:28,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:37:28,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-11-08 18:37:28,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:37:29,283 INFO L124 PetriNetUnfolderBase]: 4388/6219 cut-off events. [2024-11-08 18:37:29,284 INFO L125 PetriNetUnfolderBase]: For 457/457 co-relation queries the response was YES. [2024-11-08 18:37:29,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12207 conditions, 6219 events. 4388/6219 cut-off events. For 457/457 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 31960 event pairs, 1080 based on Foata normal form. 153/6027 useless extension candidates. Maximal degree in co-relation 10844. Up to 4714 conditions per place. [2024-11-08 18:37:29,362 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 48 selfloop transitions, 3 changer transitions 2/68 dead transitions. [2024-11-08 18:37:29,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 287 flow [2024-11-08 18:37:29,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:37:29,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:37:29,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 117 transitions. [2024-11-08 18:37:29,377 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-11-08 18:37:29,379 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 122 flow. Second operand 3 states and 117 transitions. [2024-11-08 18:37:29,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 287 flow [2024-11-08 18:37:29,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 68 transitions, 257 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-08 18:37:29,400 INFO L231 Difference]: Finished difference. Result has 47 places, 49 transitions, 125 flow [2024-11-08 18:37:29,402 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=47, PETRI_TRANSITIONS=49} [2024-11-08 18:37:29,406 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -7 predicate places. [2024-11-08 18:37:29,407 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 49 transitions, 125 flow [2024-11-08 18:37:29,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-08 18:37:29,408 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:37:29,409 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:37:29,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:37:29,410 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 18:37:29,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:29,412 INFO L85 PathProgramCache]: Analyzing trace with hash 314038710, now seen corresponding path program 1 times [2024-11-08 18:37:29,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:29,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768612635] [2024-11-08 18:37:29,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:29,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:29,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:37:29,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:37:29,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768612635] [2024-11-08 18:37:29,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768612635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:29,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:29,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:37:29,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792952485] [2024-11-08 18:37:29,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:29,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:37:29,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:37:29,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:37:29,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:37:29,688 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-11-08 18:37:29,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 49 transitions, 125 flow. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 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) [2024-11-08 18:37:29,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:37:29,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-11-08 18:37:29,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:37:32,546 INFO L124 PetriNetUnfolderBase]: 19598/26235 cut-off events. [2024-11-08 18:37:32,546 INFO L125 PetriNetUnfolderBase]: For 2913/3047 co-relation queries the response was YES. [2024-11-08 18:37:32,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55385 conditions, 26235 events. 19598/26235 cut-off events. For 2913/3047 co-relation queries the response was YES. Maximal size of possible extension queue 1153. Compared 150039 event pairs, 5084 based on Foata normal form. 36/23828 useless extension candidates. Maximal degree in co-relation 7557. Up to 11691 conditions per place. [2024-11-08 18:37:32,740 INFO L140 encePairwiseOnDemand]: 41/54 looper letters, 135 selfloop transitions, 18 changer transitions 0/162 dead transitions. [2024-11-08 18:37:32,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 162 transitions, 718 flow [2024-11-08 18:37:32,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:37:32,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:37:32,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 233 transitions. [2024-11-08 18:37:32,743 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7191358024691358 [2024-11-08 18:37:32,744 INFO L175 Difference]: Start difference. First operand has 47 places, 49 transitions, 125 flow. Second operand 6 states and 233 transitions. [2024-11-08 18:37:32,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 162 transitions, 718 flow [2024-11-08 18:37:32,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 162 transitions, 708 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:37:32,749 INFO L231 Difference]: Finished difference. Result has 55 places, 66 transitions, 255 flow [2024-11-08 18:37:32,750 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=255, PETRI_PLACES=55, PETRI_TRANSITIONS=66} [2024-11-08 18:37:32,751 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 1 predicate places. [2024-11-08 18:37:32,751 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 66 transitions, 255 flow [2024-11-08 18:37:32,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 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) [2024-11-08 18:37:32,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:37:32,752 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:37:32,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:37:32,753 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 18:37:32,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:32,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1937850448, now seen corresponding path program 2 times [2024-11-08 18:37:32,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:32,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232542058] [2024-11-08 18:37:32,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:32,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:32,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:37:32,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:37:32,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232542058] [2024-11-08 18:37:32,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232542058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:32,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:32,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:37:32,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343638422] [2024-11-08 18:37:32,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:32,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:37:32,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:37:32,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:37:32,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:37:33,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-11-08 18:37:33,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 66 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-11-08 18:37:33,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:37:33,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-11-08 18:37:33,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:37:36,610 INFO L124 PetriNetUnfolderBase]: 24261/31904 cut-off events. [2024-11-08 18:37:36,610 INFO L125 PetriNetUnfolderBase]: For 18204/18430 co-relation queries the response was YES. [2024-11-08 18:37:36,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88183 conditions, 31904 events. 24261/31904 cut-off events. For 18204/18430 co-relation queries the response was YES. Maximal size of possible extension queue 1451. Compared 184893 event pairs, 2412 based on Foata normal form. 1702/33226 useless extension candidates. Maximal degree in co-relation 24940. Up to 9598 conditions per place. [2024-11-08 18:37:36,886 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 172 selfloop transitions, 13 changer transitions 0/194 dead transitions. [2024-11-08 18:37:36,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 194 transitions, 1046 flow [2024-11-08 18:37:36,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:37:36,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 18:37:36,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 267 transitions. [2024-11-08 18:37:36,890 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7063492063492064 [2024-11-08 18:37:36,890 INFO L175 Difference]: Start difference. First operand has 55 places, 66 transitions, 255 flow. Second operand 7 states and 267 transitions. [2024-11-08 18:37:36,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 194 transitions, 1046 flow [2024-11-08 18:37:36,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 194 transitions, 1046 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:37:36,942 INFO L231 Difference]: Finished difference. Result has 66 places, 70 transitions, 345 flow [2024-11-08 18:37:36,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=345, PETRI_PLACES=66, PETRI_TRANSITIONS=70} [2024-11-08 18:37:36,944 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 12 predicate places. [2024-11-08 18:37:36,944 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 70 transitions, 345 flow [2024-11-08 18:37:36,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-11-08 18:37:36,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:37:36,945 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:37:36,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:37:36,946 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 18:37:36,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:36,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1961598916, now seen corresponding path program 1 times [2024-11-08 18:37:36,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:36,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698409244] [2024-11-08 18:37:36,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:36,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:37,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:37:37,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:37:37,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698409244] [2024-11-08 18:37:37,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698409244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:37,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:37,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:37:37,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698686872] [2024-11-08 18:37:37,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:37,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:37:37,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:37:37,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:37:37,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:37:37,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 54 [2024-11-08 18:37:37,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 70 transitions, 345 flow. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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) [2024-11-08 18:37:37,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:37:37,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 54 [2024-11-08 18:37:37,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:37:40,811 INFO L124 PetriNetUnfolderBase]: 30130/41363 cut-off events. [2024-11-08 18:37:40,812 INFO L125 PetriNetUnfolderBase]: For 53186/53965 co-relation queries the response was YES. [2024-11-08 18:37:40,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121270 conditions, 41363 events. 30130/41363 cut-off events. For 53186/53965 co-relation queries the response was YES. Maximal size of possible extension queue 1950. Compared 266942 event pairs, 7944 based on Foata normal form. 148/39711 useless extension candidates. Maximal degree in co-relation 82738. Up to 19747 conditions per place. [2024-11-08 18:37:41,166 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 138 selfloop transitions, 17 changer transitions 0/169 dead transitions. [2024-11-08 18:37:41,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 169 transitions, 968 flow [2024-11-08 18:37:41,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:37:41,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 18:37:41,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 247 transitions. [2024-11-08 18:37:41,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6534391534391535 [2024-11-08 18:37:41,170 INFO L175 Difference]: Start difference. First operand has 66 places, 70 transitions, 345 flow. Second operand 7 states and 247 transitions. [2024-11-08 18:37:41,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 169 transitions, 968 flow [2024-11-08 18:37:41,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 169 transitions, 963 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:37:41,715 INFO L231 Difference]: Finished difference. Result has 76 places, 77 transitions, 446 flow [2024-11-08 18:37:41,715 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=446, PETRI_PLACES=76, PETRI_TRANSITIONS=77} [2024-11-08 18:37:41,716 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 22 predicate places. [2024-11-08 18:37:41,716 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 77 transitions, 446 flow [2024-11-08 18:37:41,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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) [2024-11-08 18:37:41,717 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:37:41,717 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:37:41,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:37:41,718 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 18:37:41,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:41,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1138057414, now seen corresponding path program 2 times [2024-11-08 18:37:41,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:41,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428512665] [2024-11-08 18:37:41,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:41,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:41,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:37:41,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:37:41,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428512665] [2024-11-08 18:37:41,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428512665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:41,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:41,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:37:41,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391185518] [2024-11-08 18:37:41,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:41,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:37:41,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:37:41,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:37:41,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:37:41,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 54 [2024-11-08 18:37:41,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 77 transitions, 446 flow. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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) [2024-11-08 18:37:41,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:37:41,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 54 [2024-11-08 18:37:41,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:37:47,279 INFO L124 PetriNetUnfolderBase]: 44548/59756 cut-off events. [2024-11-08 18:37:47,279 INFO L125 PetriNetUnfolderBase]: For 116961/118556 co-relation queries the response was YES. [2024-11-08 18:37:47,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198120 conditions, 59756 events. 44548/59756 cut-off events. For 116961/118556 co-relation queries the response was YES. Maximal size of possible extension queue 2362. Compared 372669 event pairs, 14073 based on Foata normal form. 980/57868 useless extension candidates. Maximal degree in co-relation 121389. Up to 24783 conditions per place. [2024-11-08 18:37:47,971 INFO L140 encePairwiseOnDemand]: 46/54 looper letters, 181 selfloop transitions, 30 changer transitions 0/226 dead transitions. [2024-11-08 18:37:47,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 226 transitions, 1617 flow [2024-11-08 18:37:47,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:37:47,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 18:37:47,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 253 transitions. [2024-11-08 18:37:47,973 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6693121693121693 [2024-11-08 18:37:47,973 INFO L175 Difference]: Start difference. First operand has 76 places, 77 transitions, 446 flow. Second operand 7 states and 253 transitions. [2024-11-08 18:37:47,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 226 transitions, 1617 flow [2024-11-08 18:37:49,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 226 transitions, 1599 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:37:49,201 INFO L231 Difference]: Finished difference. Result has 86 places, 95 transitions, 692 flow [2024-11-08 18:37:49,202 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=692, PETRI_PLACES=86, PETRI_TRANSITIONS=95} [2024-11-08 18:37:49,202 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 32 predicate places. [2024-11-08 18:37:49,202 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 95 transitions, 692 flow [2024-11-08 18:37:49,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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) [2024-11-08 18:37:49,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:37:49,203 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:37:49,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:37:49,204 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 18:37:49,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:49,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1538840120, now seen corresponding path program 3 times [2024-11-08 18:37:49,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:49,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411897507] [2024-11-08 18:37:49,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:49,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:49,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:37:49,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:37:49,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411897507] [2024-11-08 18:37:49,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411897507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:49,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:49,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:37:49,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133752029] [2024-11-08 18:37:49,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:49,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:37:49,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:37:49,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:37:49,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:37:49,343 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-11-08 18:37:49,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 95 transitions, 692 flow. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 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) [2024-11-08 18:37:49,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:37:49,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-11-08 18:37:49,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:37:58,183 INFO L124 PetriNetUnfolderBase]: 65796/88238 cut-off events. [2024-11-08 18:37:58,184 INFO L125 PetriNetUnfolderBase]: For 269580/272397 co-relation queries the response was YES. [2024-11-08 18:37:58,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319479 conditions, 88238 events. 65796/88238 cut-off events. For 269580/272397 co-relation queries the response was YES. Maximal size of possible extension queue 3447. Compared 574152 event pairs, 17284 based on Foata normal form. 449/82691 useless extension candidates. Maximal degree in co-relation 246257. Up to 43466 conditions per place. [2024-11-08 18:37:59,158 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 178 selfloop transitions, 50 changer transitions 2/244 dead transitions. [2024-11-08 18:37:59,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 244 transitions, 2114 flow [2024-11-08 18:37:59,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:37:59,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:37:59,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 225 transitions. [2024-11-08 18:37:59,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2024-11-08 18:37:59,160 INFO L175 Difference]: Start difference. First operand has 86 places, 95 transitions, 692 flow. Second operand 6 states and 225 transitions. [2024-11-08 18:37:59,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 244 transitions, 2114 flow [2024-11-08 18:38:00,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 244 transitions, 2100 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-11-08 18:38:00,970 INFO L231 Difference]: Finished difference. Result has 95 places, 128 transitions, 1204 flow [2024-11-08 18:38:00,971 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1204, PETRI_PLACES=95, PETRI_TRANSITIONS=128} [2024-11-08 18:38:00,971 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 41 predicate places. [2024-11-08 18:38:00,972 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 128 transitions, 1204 flow [2024-11-08 18:38:00,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 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) [2024-11-08 18:38:00,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:38:00,972 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:38:00,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:38:00,973 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 18:38:00,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:00,973 INFO L85 PathProgramCache]: Analyzing trace with hash -603253338, now seen corresponding path program 4 times [2024-11-08 18:38:00,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:38:00,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119649962] [2024-11-08 18:38:00,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:00,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:38:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:01,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:38:01,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:38:01,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119649962] [2024-11-08 18:38:01,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119649962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:38:01,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:38:01,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:38:01,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019769984] [2024-11-08 18:38:01,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:01,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:38:01,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:38:01,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:38:01,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:38:01,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-11-08 18:38:01,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 128 transitions, 1204 flow. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 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) [2024-11-08 18:38:01,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:38:01,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-11-08 18:38:01,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:38:14,836 INFO L124 PetriNetUnfolderBase]: 91851/122581 cut-off events. [2024-11-08 18:38:14,836 INFO L125 PetriNetUnfolderBase]: For 535347/537641 co-relation queries the response was YES. [2024-11-08 18:38:15,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502434 conditions, 122581 events. 91851/122581 cut-off events. For 535347/537641 co-relation queries the response was YES. Maximal size of possible extension queue 4572. Compared 807720 event pairs, 25320 based on Foata normal form. 1346/118476 useless extension candidates. Maximal degree in co-relation 324569. Up to 49738 conditions per place. [2024-11-08 18:38:16,340 INFO L140 encePairwiseOnDemand]: 41/54 looper letters, 229 selfloop transitions, 76 changer transitions 8/329 dead transitions. [2024-11-08 18:38:16,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 329 transitions, 3433 flow [2024-11-08 18:38:16,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:38:16,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:38:16,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 229 transitions. [2024-11-08 18:38:16,342 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7067901234567902 [2024-11-08 18:38:16,342 INFO L175 Difference]: Start difference. First operand has 95 places, 128 transitions, 1204 flow. Second operand 6 states and 229 transitions. [2024-11-08 18:38:16,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 329 transitions, 3433 flow