./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a 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_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU --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 103efe8931e099ca6c2446ad32c4c46818a6d213fc850bc42032bda38d601e6f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:06:38,297 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:06:38,409 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:06:38,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:06:38,414 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:06:38,434 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:06:38,435 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:06:38,435 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:06:38,437 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:06:38,437 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:06:38,437 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:06:38,439 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:06:38,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:06:38,440 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:06:38,442 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:06:38,443 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:06:38,443 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:06:38,443 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:06:38,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:06:38,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:06:38,448 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:06:38,449 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:06:38,449 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:06:38,450 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:06:38,450 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:06:38,450 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:06:38,450 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:06:38,450 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:06:38,451 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:06:38,451 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:06:38,451 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:06:38,451 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:06:38,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:06:38,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:38,452 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:06:38,452 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:06:38,452 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:06:38,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:06:38,455 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:06:38,456 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:06:38,456 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:06:38,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:06:38,456 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_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 103efe8931e099ca6c2446ad32c4c46818a6d213fc850bc42032bda38d601e6f [2024-10-31 22:06:38,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:06:38,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:06:38,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:06:38,758 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:06:38,759 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:06:38,760 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/parallel-misc-5.wvr.c Unable to find full path for "g++" [2024-10-31 22:06:40,700 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:06:40,918 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:06:40,919 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/sv-benchmarks/c/weaver/parallel-misc-5.wvr.c [2024-10-31 22:06:40,927 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/data/a8d04e32a/c58fa7f16c084bcdb3339aa79ae5c769/FLAGd5ab64f24 [2024-10-31 22:06:41,279 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/data/a8d04e32a/c58fa7f16c084bcdb3339aa79ae5c769 [2024-10-31 22:06:41,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:06:41,283 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:06:41,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:41,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:06:41,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:06:41,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:41" (1/1) ... [2024-10-31 22:06:41,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c8aded0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:41, skipping insertion in model container [2024-10-31 22:06:41,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:41" (1/1) ... [2024-10-31 22:06:41,320 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:06:41,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:41,571 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:06:41,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:41,657 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:06:41,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:41 WrapperNode [2024-10-31 22:06:41,661 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:41,662 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:41,663 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:06:41,663 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:06:41,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:41" (1/1) ... [2024-10-31 22:06:41,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:41" (1/1) ... [2024-10-31 22:06:41,722 INFO L138 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 137 [2024-10-31 22:06:41,722 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:41,723 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:06:41,723 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:06:41,723 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:06:41,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:41" (1/1) ... [2024-10-31 22:06:41,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:41" (1/1) ... [2024-10-31 22:06:41,742 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:41" (1/1) ... [2024-10-31 22:06:41,764 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:06:41,764 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:41" (1/1) ... [2024-10-31 22:06:41,765 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:41" (1/1) ... [2024-10-31 22:06:41,770 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:41" (1/1) ... [2024-10-31 22:06:41,774 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:41" (1/1) ... [2024-10-31 22:06:41,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:41" (1/1) ... [2024-10-31 22:06:41,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:41" (1/1) ... [2024-10-31 22:06:41,779 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:06:41,782 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:06:41,783 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:06:41,783 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:06:41,784 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:41" (1/1) ... [2024-10-31 22:06:41,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:41,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:41,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:41,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:06:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:06:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:06:41,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:06:41,868 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:06:41,869 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:06:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:06:41,869 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:06:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:06:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:06:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:06:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:06:41,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:06:41,874 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:06:42,020 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:06:42,023 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:06:42,286 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:06:42,286 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:06:42,564 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:06:42,564 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:06:42,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:42 BoogieIcfgContainer [2024-10-31 22:06:42,565 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:06:42,569 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:06:42,569 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:06:42,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:06:42,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:06:41" (1/3) ... [2024-10-31 22:06:42,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d58acc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:42, skipping insertion in model container [2024-10-31 22:06:42,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:41" (2/3) ... [2024-10-31 22:06:42,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d58acc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:42, skipping insertion in model container [2024-10-31 22:06:42,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:42" (3/3) ... [2024-10-31 22:06:42,578 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-5.wvr.c [2024-10-31 22:06:42,599 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:06:42,599 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:06:42,599 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:06:42,696 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:06:42,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 39 transitions, 99 flow [2024-10-31 22:06:42,784 INFO L124 PetriNetUnfolderBase]: 4/36 cut-off events. [2024-10-31 22:06:42,784 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:06:42,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 36 events. 4/36 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 69 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2024-10-31 22:06:42,788 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 39 transitions, 99 flow [2024-10-31 22:06:42,792 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 35 transitions, 88 flow [2024-10-31 22:06:42,801 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:42,808 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;@397cac65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:42,809 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-31 22:06:42,831 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:06:42,832 INFO L124 PetriNetUnfolderBase]: 4/32 cut-off events. [2024-10-31 22:06:42,832 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:06:42,832 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:42,833 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] [2024-10-31 22:06:42,834 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:42,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:42,839 INFO L85 PathProgramCache]: Analyzing trace with hash -912570270, now seen corresponding path program 1 times [2024-10-31 22:06:42,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:42,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939315520] [2024-10-31 22:06:42,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:42,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:43,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:43,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:43,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939315520] [2024-10-31 22:06:43,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939315520] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:43,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:43,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:06:43,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162543568] [2024-10-31 22:06:43,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:43,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:43,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:43,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:43,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:43,699 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-10-31 22:06:43,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:43,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:43,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-10-31 22:06:43,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:44,448 INFO L124 PetriNetUnfolderBase]: 2009/2876 cut-off events. [2024-10-31 22:06:44,449 INFO L125 PetriNetUnfolderBase]: For 195/195 co-relation queries the response was YES. [2024-10-31 22:06:44,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5916 conditions, 2876 events. 2009/2876 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 13733 event pairs, 73 based on Foata normal form. 1/2342 useless extension candidates. Maximal degree in co-relation 5564. Up to 990 conditions per place. [2024-10-31 22:06:44,477 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 73 selfloop transitions, 8 changer transitions 6/94 dead transitions. [2024-10-31 22:06:44,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 94 transitions, 404 flow [2024-10-31 22:06:44,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:44,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:44,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions. [2024-10-31 22:06:44,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-31 22:06:44,497 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 88 flow. Second operand 6 states and 156 transitions. [2024-10-31 22:06:44,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 94 transitions, 404 flow [2024-10-31 22:06:44,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 94 transitions, 376 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 22:06:44,515 INFO L231 Difference]: Finished difference. Result has 41 places, 39 transitions, 122 flow [2024-10-31 22:06:44,517 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=122, PETRI_PLACES=41, PETRI_TRANSITIONS=39} [2024-10-31 22:06:44,523 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2024-10-31 22:06:44,524 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 39 transitions, 122 flow [2024-10-31 22:06:44,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:44,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:44,525 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:44,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:06:44,525 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:44,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:44,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1854899698, now seen corresponding path program 1 times [2024-10-31 22:06:44,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:44,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479807595] [2024-10-31 22:06:44,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:44,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:44,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:44,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479807595] [2024-10-31 22:06:44,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479807595] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:44,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:44,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:44,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092189561] [2024-10-31 22:06:44,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:44,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:44,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:44,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:44,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:44,684 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-10-31 22:06:44,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:44,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:44,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-10-31 22:06:44,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:44,966 INFO L124 PetriNetUnfolderBase]: 1279/2023 cut-off events. [2024-10-31 22:06:44,966 INFO L125 PetriNetUnfolderBase]: For 614/661 co-relation queries the response was YES. [2024-10-31 22:06:44,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4481 conditions, 2023 events. 1279/2023 cut-off events. For 614/661 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 10410 event pairs, 423 based on Foata normal form. 88/1764 useless extension candidates. Maximal degree in co-relation 3193. Up to 1126 conditions per place. [2024-10-31 22:06:44,981 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 45 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2024-10-31 22:06:44,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 60 transitions, 273 flow [2024-10-31 22:06:44,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:44,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:44,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-10-31 22:06:44,983 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7350427350427351 [2024-10-31 22:06:44,984 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 122 flow. Second operand 3 states and 86 transitions. [2024-10-31 22:06:44,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 60 transitions, 273 flow [2024-10-31 22:06:44,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 60 transitions, 273 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:06:44,987 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 138 flow [2024-10-31 22:06:44,988 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2024-10-31 22:06:44,988 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 3 predicate places. [2024-10-31 22:06:44,989 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 138 flow [2024-10-31 22:06:44,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:44,989 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:44,989 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:44,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:06:44,991 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:44,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:44,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1337608478, now seen corresponding path program 1 times [2024-10-31 22:06:44,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:44,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905613223] [2024-10-31 22:06:44,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:44,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:45,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:45,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:45,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905613223] [2024-10-31 22:06:45,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905613223] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:45,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:45,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:45,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400212513] [2024-10-31 22:06:45,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:45,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:45,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:45,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:45,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:45,113 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-10-31 22:06:45,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:45,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:45,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-10-31 22:06:45,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:45,453 INFO L124 PetriNetUnfolderBase]: 1740/2768 cut-off events. [2024-10-31 22:06:45,454 INFO L125 PetriNetUnfolderBase]: For 1030/1063 co-relation queries the response was YES. [2024-10-31 22:06:45,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6391 conditions, 2768 events. 1740/2768 cut-off events. For 1030/1063 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 14866 event pairs, 585 based on Foata normal form. 107/2338 useless extension candidates. Maximal degree in co-relation 4769. Up to 1579 conditions per place. [2024-10-31 22:06:45,474 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 44 selfloop transitions, 2 changer transitions 1/60 dead transitions. [2024-10-31 22:06:45,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 60 transitions, 297 flow [2024-10-31 22:06:45,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:45,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:45,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-10-31 22:06:45,478 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.717948717948718 [2024-10-31 22:06:45,479 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 138 flow. Second operand 3 states and 84 transitions. [2024-10-31 22:06:45,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 60 transitions, 297 flow [2024-10-31 22:06:45,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 60 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:06:45,485 INFO L231 Difference]: Finished difference. Result has 46 places, 41 transitions, 150 flow [2024-10-31 22:06:45,485 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=46, PETRI_TRANSITIONS=41} [2024-10-31 22:06:45,486 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 5 predicate places. [2024-10-31 22:06:45,487 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 150 flow [2024-10-31 22:06:45,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:45,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:45,488 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:45,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:06:45,489 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:45,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:45,490 INFO L85 PathProgramCache]: Analyzing trace with hash -752747674, now seen corresponding path program 1 times [2024-10-31 22:06:45,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:45,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795389919] [2024-10-31 22:06:45,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:45,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:45,714 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:06:45,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:45,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795389919] [2024-10-31 22:06:45,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795389919] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:45,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372263090] [2024-10-31 22:06:45,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:45,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:45,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:45,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:45,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:06:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:45,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:06:45,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:45,957 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:06:45,957 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:46,096 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:06:46,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372263090] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:46,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:46,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 5] total 9 [2024-10-31 22:06:46,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789980010] [2024-10-31 22:06:46,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:46,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:06:46,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:46,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:06:46,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:06:46,124 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-10-31 22:06:46,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 150 flow. Second operand has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:46,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:46,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-10-31 22:06:46,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:46,911 INFO L124 PetriNetUnfolderBase]: 3359/4934 cut-off events. [2024-10-31 22:06:46,912 INFO L125 PetriNetUnfolderBase]: For 2391/2431 co-relation queries the response was YES. [2024-10-31 22:06:46,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12396 conditions, 4934 events. 3359/4934 cut-off events. For 2391/2431 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 24558 event pairs, 63 based on Foata normal form. 40/4300 useless extension candidates. Maximal degree in co-relation 10943. Up to 1697 conditions per place. [2024-10-31 22:06:46,937 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 84 selfloop transitions, 9 changer transitions 15/117 dead transitions. [2024-10-31 22:06:46,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 117 transitions, 624 flow [2024-10-31 22:06:46,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:06:46,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:06:46,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 185 transitions. [2024-10-31 22:06:46,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.592948717948718 [2024-10-31 22:06:46,941 INFO L175 Difference]: Start difference. First operand has 46 places, 41 transitions, 150 flow. Second operand 8 states and 185 transitions. [2024-10-31 22:06:46,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 117 transitions, 624 flow [2024-10-31 22:06:46,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 117 transitions, 617 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:06:46,951 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 203 flow [2024-10-31 22:06:46,951 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=203, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2024-10-31 22:06:46,952 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 16 predicate places. [2024-10-31 22:06:46,953 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 203 flow [2024-10-31 22:06:46,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:46,954 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:46,954 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:46,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:06:47,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:47,159 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:47,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:47,159 INFO L85 PathProgramCache]: Analyzing trace with hash -366690366, now seen corresponding path program 2 times [2024-10-31 22:06:47,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:47,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319838186] [2024-10-31 22:06:47,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:47,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:47,363 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:06:47,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:47,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319838186] [2024-10-31 22:06:47,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319838186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:47,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:47,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:47,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787051772] [2024-10-31 22:06:47,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:47,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:06:47,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:47,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:06:47,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:06:47,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-10-31 22:06:47,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 203 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:47,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:47,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-10-31 22:06:47,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:48,339 INFO L124 PetriNetUnfolderBase]: 4986/7387 cut-off events. [2024-10-31 22:06:48,340 INFO L125 PetriNetUnfolderBase]: For 6100/6244 co-relation queries the response was YES. [2024-10-31 22:06:48,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19641 conditions, 7387 events. 4986/7387 cut-off events. For 6100/6244 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 39119 event pairs, 1208 based on Foata normal form. 298/6747 useless extension candidates. Maximal degree in co-relation 14595. Up to 3065 conditions per place. [2024-10-31 22:06:48,387 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 68 selfloop transitions, 7 changer transitions 3/87 dead transitions. [2024-10-31 22:06:48,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 87 transitions, 503 flow [2024-10-31 22:06:48,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:06:48,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:06:48,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2024-10-31 22:06:48,389 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6102564102564103 [2024-10-31 22:06:48,390 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 203 flow. Second operand 5 states and 119 transitions. [2024-10-31 22:06:48,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 87 transitions, 503 flow [2024-10-31 22:06:48,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 87 transitions, 503 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:06:48,420 INFO L231 Difference]: Finished difference. Result has 62 places, 45 transitions, 214 flow [2024-10-31 22:06:48,420 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=214, PETRI_PLACES=62, PETRI_TRANSITIONS=45} [2024-10-31 22:06:48,421 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 21 predicate places. [2024-10-31 22:06:48,422 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 45 transitions, 214 flow [2024-10-31 22:06:48,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:48,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:48,422 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:48,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:06:48,423 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:48,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:48,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1309263434, now seen corresponding path program 3 times [2024-10-31 22:06:48,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:48,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771004282] [2024-10-31 22:06:48,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:48,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:48,723 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:48,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:48,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771004282] [2024-10-31 22:06:48,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771004282] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:48,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116679253] [2024-10-31 22:06:48,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:06:48,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:48,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:48,729 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:48,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:06:48,843 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-31 22:06:48,844 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:06:48,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:06:48,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:49,032 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:49,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:49,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:49,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116679253] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:49,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:49,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 10 [2024-10-31 22:06:49,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436832002] [2024-10-31 22:06:49,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:49,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:06:49,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:49,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:06:49,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:06:49,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 39 [2024-10-31 22:06:49,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 45 transitions, 214 flow. Second operand has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:49,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:49,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 39 [2024-10-31 22:06:49,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:51,206 INFO L124 PetriNetUnfolderBase]: 8731/12844 cut-off events. [2024-10-31 22:06:51,207 INFO L125 PetriNetUnfolderBase]: For 15324/15324 co-relation queries the response was YES. [2024-10-31 22:06:51,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35739 conditions, 12844 events. 8731/12844 cut-off events. For 15324/15324 co-relation queries the response was YES. Maximal size of possible extension queue 555. Compared 72545 event pairs, 964 based on Foata normal form. 532/11897 useless extension candidates. Maximal degree in co-relation 33993. Up to 3880 conditions per place. [2024-10-31 22:06:51,276 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 173 selfloop transitions, 40 changer transitions 37/255 dead transitions. [2024-10-31 22:06:51,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 255 transitions, 1511 flow [2024-10-31 22:06:51,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-31 22:06:51,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-31 22:06:51,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 381 transitions. [2024-10-31 22:06:51,279 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5746606334841629 [2024-10-31 22:06:51,279 INFO L175 Difference]: Start difference. First operand has 62 places, 45 transitions, 214 flow. Second operand 17 states and 381 transitions. [2024-10-31 22:06:51,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 255 transitions, 1511 flow [2024-10-31 22:06:51,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 255 transitions, 1460 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:51,389 INFO L231 Difference]: Finished difference. Result has 85 places, 74 transitions, 581 flow [2024-10-31 22:06:51,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=581, PETRI_PLACES=85, PETRI_TRANSITIONS=74} [2024-10-31 22:06:51,390 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 44 predicate places. [2024-10-31 22:06:51,390 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 74 transitions, 581 flow [2024-10-31 22:06:51,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:51,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:51,391 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:51,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:06:51,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:51,592 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:51,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:51,592 INFO L85 PathProgramCache]: Analyzing trace with hash -224581316, now seen corresponding path program 4 times [2024-10-31 22:06:51,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:51,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081162969] [2024-10-31 22:06:51,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:51,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:51,714 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:06:51,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:51,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081162969] [2024-10-31 22:06:51,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081162969] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:51,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122077004] [2024-10-31 22:06:51,715 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-31 22:06:51,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:51,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:51,717 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:51,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:06:51,814 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-31 22:06:51,814 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:06:51,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:06:51,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:51,872 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:51,872 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:51,917 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:06:51,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122077004] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:51,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:51,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 3] total 4 [2024-10-31 22:06:51,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70368436] [2024-10-31 22:06:51,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:51,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:51,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:51,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:51,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:51,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-10-31 22:06:51,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 74 transitions, 581 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:51,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:51,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-10-31 22:06:51,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:53,266 INFO L124 PetriNetUnfolderBase]: 5679/9135 cut-off events. [2024-10-31 22:06:53,267 INFO L125 PetriNetUnfolderBase]: For 35507/35773 co-relation queries the response was YES. [2024-10-31 22:06:53,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32381 conditions, 9135 events. 5679/9135 cut-off events. For 35507/35773 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 55810 event pairs, 2143 based on Foata normal form. 272/8035 useless extension candidates. Maximal degree in co-relation 28081. Up to 3267 conditions per place. [2024-10-31 22:06:53,344 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 93 selfloop transitions, 16 changer transitions 0/135 dead transitions. [2024-10-31 22:06:53,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 135 transitions, 1222 flow [2024-10-31 22:06:53,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:06:53,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:06:53,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 121 transitions. [2024-10-31 22:06:53,346 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7756410256410257 [2024-10-31 22:06:53,346 INFO L175 Difference]: Start difference. First operand has 85 places, 74 transitions, 581 flow. Second operand 4 states and 121 transitions. [2024-10-31 22:06:53,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 135 transitions, 1222 flow [2024-10-31 22:06:53,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 135 transitions, 1154 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-10-31 22:06:53,571 INFO L231 Difference]: Finished difference. Result has 86 places, 85 transitions, 721 flow [2024-10-31 22:06:53,571 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=721, PETRI_PLACES=86, PETRI_TRANSITIONS=85} [2024-10-31 22:06:53,572 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 45 predicate places. [2024-10-31 22:06:53,572 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 85 transitions, 721 flow [2024-10-31 22:06:53,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:53,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:53,572 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:53,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:53,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:53,773 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:53,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:53,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1092846932, now seen corresponding path program 1 times [2024-10-31 22:06:53,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:53,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011016775] [2024-10-31 22:06:53,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:53,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:53,875 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:06:53,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:53,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011016775] [2024-10-31 22:06:53,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011016775] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:53,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704916047] [2024-10-31 22:06:53,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:53,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:53,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:53,881 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:53,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:06:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:53,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:06:53,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:54,019 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:54,022 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:54,063 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:06:54,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704916047] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:54,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:54,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 3] total 4 [2024-10-31 22:06:54,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170745768] [2024-10-31 22:06:54,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:54,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:54,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:54,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:54,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:54,069 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-10-31 22:06:54,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 85 transitions, 721 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:54,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:54,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-10-31 22:06:54,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:56,082 INFO L124 PetriNetUnfolderBase]: 11271/18043 cut-off events. [2024-10-31 22:06:56,083 INFO L125 PetriNetUnfolderBase]: For 81666/82148 co-relation queries the response was YES. [2024-10-31 22:06:56,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66151 conditions, 18043 events. 11271/18043 cut-off events. For 81666/82148 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 123560 event pairs, 4341 based on Foata normal form. 626/15855 useless extension candidates. Maximal degree in co-relation 58308. Up to 6229 conditions per place. [2024-10-31 22:06:56,298 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 114 selfloop transitions, 16 changer transitions 0/156 dead transitions. [2024-10-31 22:06:56,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 156 transitions, 1614 flow [2024-10-31 22:06:56,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:06:56,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:06:56,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2024-10-31 22:06:56,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-10-31 22:06:56,299 INFO L175 Difference]: Start difference. First operand has 86 places, 85 transitions, 721 flow. Second operand 4 states and 117 transitions. [2024-10-31 22:06:56,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 156 transitions, 1614 flow [2024-10-31 22:06:56,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 156 transitions, 1578 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-10-31 22:06:56,551 INFO L231 Difference]: Finished difference. Result has 91 places, 96 transitions, 894 flow [2024-10-31 22:06:56,552 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=894, PETRI_PLACES=91, PETRI_TRANSITIONS=96} [2024-10-31 22:06:56,552 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 50 predicate places. [2024-10-31 22:06:56,552 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 96 transitions, 894 flow [2024-10-31 22:06:56,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:56,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:56,553 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:56,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:56,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:56,754 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:56,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:56,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1016476110, now seen corresponding path program 5 times [2024-10-31 22:06:56,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:56,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069303113] [2024-10-31 22:06:56,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:56,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:06:57,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:57,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069303113] [2024-10-31 22:06:57,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069303113] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:57,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594697490] [2024-10-31 22:06:57,028 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-31 22:06:57,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:57,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:57,031 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:57,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ffdf8c-dae7-4978-ac56-3399405a1a06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:06:57,115 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-10-31 22:06:57,115 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:06:57,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-31 22:06:57,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:57,447 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:57,448 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:57,844 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:06:57,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594697490] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:57,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:57,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 9] total 21 [2024-10-31 22:06:57,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691207236] [2024-10-31 22:06:57,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:57,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-31 22:06:57,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:57,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-31 22:06:57,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-10-31 22:06:57,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 39 [2024-10-31 22:06:57,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 96 transitions, 894 flow. Second operand has 22 states, 22 states have (on average 12.818181818181818) internal successors, (282), 22 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:57,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:57,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 39 [2024-10-31 22:06:57,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand