./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/mult-dist.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_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/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_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/mult-dist.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/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_45a8ca50-328c-477f-99fb-55d509270ca4/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 c31f1603fd15e011308b2e8fcd1cd45b23f0b00ac0b8b466c4f212460081639c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:00:04,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:00:04,478 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:00:04,484 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:00:04,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:00:04,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:00:04,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:00:04,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:00:04,528 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:00:04,532 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:00:04,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:00:04,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:00:04,533 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:00:04,534 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:00:04,534 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:00:04,534 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:00:04,537 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:00:04,541 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:00:04,542 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:00:04,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:00:04,542 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:00:04,543 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:00:04,543 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:00:04,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:00:04,544 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:00:04,544 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:00:04,544 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:00:04,556 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:00:04,557 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:00:04,558 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:00:04,558 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:00:04,559 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:00:04,559 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:00:04,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:04,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:00:04,560 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:00:04,560 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:00:04,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:00:04,561 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:00:04,561 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:00:04,562 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:00:04,562 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:00:04,562 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_45a8ca50-328c-477f-99fb-55d509270ca4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c31f1603fd15e011308b2e8fcd1cd45b23f0b00ac0b8b466c4f212460081639c [2024-10-31 22:00:04,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:00:04,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:00:04,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:00:04,897 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:00:04,897 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:00:04,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/mult-dist.wvr.c Unable to find full path for "g++" [2024-10-31 22:00:06,955 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:00:07,138 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:00:07,139 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/sv-benchmarks/c/weaver/mult-dist.wvr.c [2024-10-31 22:00:07,148 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/data/0a9d45f32/0efeb640e8d348959d454d7a9b26f3d7/FLAG2c255f6af [2024-10-31 22:00:07,523 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/data/0a9d45f32/0efeb640e8d348959d454d7a9b26f3d7 [2024-10-31 22:00:07,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:00:07,527 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:00:07,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:07,529 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:00:07,535 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:00:07,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:07" (1/1) ... [2024-10-31 22:00:07,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f46753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:07, skipping insertion in model container [2024-10-31 22:00:07,537 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:07" (1/1) ... [2024-10-31 22:00:07,561 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:00:07,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:07,827 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:00:07,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:07,868 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:00:07,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:07 WrapperNode [2024-10-31 22:00:07,869 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:07,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:07,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:00:07,870 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:00:07,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:07" (1/1) ... [2024-10-31 22:00:07,887 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:07" (1/1) ... [2024-10-31 22:00:07,907 INFO L138 Inliner]: procedures = 21, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2024-10-31 22:00:07,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:07,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:00:07,909 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:00:07,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:00:07,921 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:07" (1/1) ... [2024-10-31 22:00:07,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:07" (1/1) ... [2024-10-31 22:00:07,923 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:07" (1/1) ... [2024-10-31 22:00:07,937 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 22:00:07,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:07" (1/1) ... [2024-10-31 22:00:07,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:07" (1/1) ... [2024-10-31 22:00:07,944 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:07" (1/1) ... [2024-10-31 22:00:07,954 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:07" (1/1) ... [2024-10-31 22:00:07,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:07" (1/1) ... [2024-10-31 22:00:07,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:07" (1/1) ... [2024-10-31 22:00:07,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:00:07,960 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:00:07,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:00:07,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:00:07,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:07" (1/1) ... [2024-10-31 22:00:07,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:07,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:08,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:08,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:00:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:00:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:00:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:00:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:00:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:00:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:00:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:00:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:00:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:00:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:00:08,046 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 22:00:08,181 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:00:08,184 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:00:08,463 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:00:08,463 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:00:08,692 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:00:08,692 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 22:00:08,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:08 BoogieIcfgContainer [2024-10-31 22:00:08,697 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:00:08,699 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:00:08,699 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:00:08,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:00:08,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:00:07" (1/3) ... [2024-10-31 22:00:08,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1522cad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:08, skipping insertion in model container [2024-10-31 22:00:08,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:07" (2/3) ... [2024-10-31 22:00:08,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1522cad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:08, skipping insertion in model container [2024-10-31 22:00:08,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:08" (3/3) ... [2024-10-31 22:00:08,715 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-dist.wvr.c [2024-10-31 22:00:08,738 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:00:08,738 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:00:08,740 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:00:08,860 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:00:08,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 27 transitions, 75 flow [2024-10-31 22:00:08,985 INFO L124 PetriNetUnfolderBase]: 3/24 cut-off events. [2024-10-31 22:00:08,990 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:00:08,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 24 events. 3/24 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2024-10-31 22:00:08,993 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 27 transitions, 75 flow [2024-10-31 22:00:09,001 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 23 transitions, 64 flow [2024-10-31 22:00:09,032 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:00:09,051 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;@51350546, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:00:09,051 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-31 22:00:09,071 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:00:09,074 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2024-10-31 22:00:09,074 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:00:09,074 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:09,075 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:09,075 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 22:00:09,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:09,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1812680405, now seen corresponding path program 1 times [2024-10-31 22:00:09,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:09,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950642014] [2024-10-31 22:00:09,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:09,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,795 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 22:00:09,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:09,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950642014] [2024-10-31 22:00:09,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950642014] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:09,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:09,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:09,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847289427] [2024-10-31 22:00:09,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:09,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:09,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:09,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:09,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:09,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-31 22:00:09,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 22:00:09,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:09,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-31 22:00:09,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:10,082 INFO L124 PetriNetUnfolderBase]: 386/565 cut-off events. [2024-10-31 22:00:10,083 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2024-10-31 22:00:10,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1206 conditions, 565 events. 386/565 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1786 event pairs, 124 based on Foata normal form. 2/417 useless extension candidates. Maximal degree in co-relation 1030. Up to 349 conditions per place. [2024-10-31 22:00:10,093 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 32 selfloop transitions, 4 changer transitions 1/38 dead transitions. [2024-10-31 22:00:10,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 38 transitions, 183 flow [2024-10-31 22:00:10,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:10,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:10,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2024-10-31 22:00:10,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-31 22:00:10,114 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 64 flow. Second operand 3 states and 54 transitions. [2024-10-31 22:00:10,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 38 transitions, 183 flow [2024-10-31 22:00:10,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 38 transitions, 161 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 22:00:10,133 INFO L231 Difference]: Finished difference. Result has 25 places, 24 transitions, 74 flow [2024-10-31 22:00:10,136 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=25, PETRI_TRANSITIONS=24} [2024-10-31 22:00:10,142 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -5 predicate places. [2024-10-31 22:00:10,143 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 24 transitions, 74 flow [2024-10-31 22:00:10,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 22:00:10,143 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:10,143 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:10,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:00:10,144 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 22:00:10,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:10,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1505537698, now seen corresponding path program 1 times [2024-10-31 22:00:10,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:10,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551399583] [2024-10-31 22:00:10,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:10,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,615 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 22:00:10,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:10,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551399583] [2024-10-31 22:00:10,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551399583] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:10,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:10,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:00:10,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903620246] [2024-10-31 22:00:10,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:10,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:00:10,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:10,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:00:10,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:00:10,621 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-31 22:00:10,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 24 transitions, 74 flow. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 22:00:10,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:10,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-31 22:00:10,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:11,096 INFO L124 PetriNetUnfolderBase]: 544/771 cut-off events. [2024-10-31 22:00:11,096 INFO L125 PetriNetUnfolderBase]: For 144/144 co-relation queries the response was YES. [2024-10-31 22:00:11,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1913 conditions, 771 events. 544/771 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2530 event pairs, 203 based on Foata normal form. 2/773 useless extension candidates. Maximal degree in co-relation 545. Up to 554 conditions per place. [2024-10-31 22:00:11,105 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 47 selfloop transitions, 18 changer transitions 3/69 dead transitions. [2024-10-31 22:00:11,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 69 transitions, 347 flow [2024-10-31 22:00:11,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:00:11,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:00:11,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 94 transitions. [2024-10-31 22:00:11,110 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4973544973544973 [2024-10-31 22:00:11,111 INFO L175 Difference]: Start difference. First operand has 25 places, 24 transitions, 74 flow. Second operand 7 states and 94 transitions. [2024-10-31 22:00:11,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 69 transitions, 347 flow [2024-10-31 22:00:11,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 69 transitions, 334 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:11,117 INFO L231 Difference]: Finished difference. Result has 34 places, 40 transitions, 198 flow [2024-10-31 22:00:11,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=198, PETRI_PLACES=34, PETRI_TRANSITIONS=40} [2024-10-31 22:00:11,118 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 4 predicate places. [2024-10-31 22:00:11,120 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 40 transitions, 198 flow [2024-10-31 22:00:11,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 22:00:11,121 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:11,121 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:11,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:00:11,122 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 22:00:11,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:11,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1455921082, now seen corresponding path program 2 times [2024-10-31 22:00:11,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:11,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263636368] [2024-10-31 22:00:11,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:11,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:11,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:11,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263636368] [2024-10-31 22:00:11,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263636368] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:11,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690777789] [2024-10-31 22:00:11,514 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:11,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:11,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:11,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:11,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:00:11,627 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:00:11,627 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:11,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 22:00:11,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:11,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:11,891 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:13,024 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 22:00:13,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690777789] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:13,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:00:13,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 8] total 14 [2024-10-31 22:00:13,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927436026] [2024-10-31 22:00:13,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:13,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:13,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:13,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:13,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:00:13,028 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-31 22:00:13,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 40 transitions, 198 flow. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 22:00:13,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:13,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-31 22:00:13,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:13,633 INFO L124 PetriNetUnfolderBase]: 849/1221 cut-off events. [2024-10-31 22:00:13,634 INFO L125 PetriNetUnfolderBase]: For 1223/1223 co-relation queries the response was YES. [2024-10-31 22:00:13,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3952 conditions, 1221 events. 849/1221 cut-off events. For 1223/1223 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4445 event pairs, 231 based on Foata normal form. 6/1227 useless extension candidates. Maximal degree in co-relation 2238. Up to 454 conditions per place. [2024-10-31 22:00:13,648 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 90 selfloop transitions, 21 changer transitions 0/112 dead transitions. [2024-10-31 22:00:13,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 112 transitions, 700 flow [2024-10-31 22:00:13,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:00:13,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:00:13,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 131 transitions. [2024-10-31 22:00:13,655 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6064814814814815 [2024-10-31 22:00:13,655 INFO L175 Difference]: Start difference. First operand has 34 places, 40 transitions, 198 flow. Second operand 8 states and 131 transitions. [2024-10-31 22:00:13,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 112 transitions, 700 flow [2024-10-31 22:00:13,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 112 transitions, 678 flow, removed 11 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:13,668 INFO L231 Difference]: Finished difference. Result has 45 places, 54 transitions, 331 flow [2024-10-31 22:00:13,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=331, PETRI_PLACES=45, PETRI_TRANSITIONS=54} [2024-10-31 22:00:13,670 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 15 predicate places. [2024-10-31 22:00:13,671 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 54 transitions, 331 flow [2024-10-31 22:00:13,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 22:00:13,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:13,672 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:13,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:00:13,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:13,877 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 22:00:13,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:13,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1391237324, now seen corresponding path program 3 times [2024-10-31 22:00:13,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:13,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943880464] [2024-10-31 22:00:13,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:13,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,280 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 22:00:14,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:14,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943880464] [2024-10-31 22:00:14,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943880464] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:14,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:14,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:00:14,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441933064] [2024-10-31 22:00:14,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:14,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:00:14,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:14,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:00:14,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:00:14,289 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-31 22:00:14,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 54 transitions, 331 flow. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 22:00:14,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:14,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-31 22:00:14,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:14,848 INFO L124 PetriNetUnfolderBase]: 1031/1462 cut-off events. [2024-10-31 22:00:14,848 INFO L125 PetriNetUnfolderBase]: For 3745/3745 co-relation queries the response was YES. [2024-10-31 22:00:14,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5870 conditions, 1462 events. 1031/1462 cut-off events. For 3745/3745 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5404 event pairs, 368 based on Foata normal form. 2/1464 useless extension candidates. Maximal degree in co-relation 3820. Up to 1080 conditions per place. [2024-10-31 22:00:14,863 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 67 selfloop transitions, 28 changer transitions 3/99 dead transitions. [2024-10-31 22:00:14,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 99 transitions, 778 flow [2024-10-31 22:00:14,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:00:14,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:00:14,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 93 transitions. [2024-10-31 22:00:14,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204 [2024-10-31 22:00:14,865 INFO L175 Difference]: Start difference. First operand has 45 places, 54 transitions, 331 flow. Second operand 7 states and 93 transitions. [2024-10-31 22:00:14,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 99 transitions, 778 flow [2024-10-31 22:00:14,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 99 transitions, 758 flow, removed 10 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:14,889 INFO L231 Difference]: Finished difference. Result has 54 places, 70 transitions, 529 flow [2024-10-31 22:00:14,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=529, PETRI_PLACES=54, PETRI_TRANSITIONS=70} [2024-10-31 22:00:14,890 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 24 predicate places. [2024-10-31 22:00:14,891 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 70 transitions, 529 flow [2024-10-31 22:00:14,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 22:00:14,891 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:14,891 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:14,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:00:14,892 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 22:00:14,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:14,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1422138076, now seen corresponding path program 4 times [2024-10-31 22:00:14,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:14,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51300294] [2024-10-31 22:00:14,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:14,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:15,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:15,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:15,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51300294] [2024-10-31 22:00:15,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51300294] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:15,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589018301] [2024-10-31 22:00:15,110 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-31 22:00:15,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:15,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:15,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:15,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:00:15,209 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-31 22:00:15,210 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:15,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:00:15,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:15,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:15,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:16,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:16,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589018301] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:16,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:16,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 15 [2024-10-31 22:00:16,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262098305] [2024-10-31 22:00:16,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:16,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-31 22:00:16,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:16,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-31 22:00:16,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:00:16,210 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-31 22:00:16,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 70 transitions, 529 flow. Second operand has 15 states, 15 states have (on average 7.066666666666666) internal successors, (106), 15 states have internal predecessors, (106), 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 22:00:16,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:16,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-31 22:00:16,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:17,821 INFO L124 PetriNetUnfolderBase]: 1622/2427 cut-off events. [2024-10-31 22:00:17,821 INFO L125 PetriNetUnfolderBase]: For 8334/8334 co-relation queries the response was YES. [2024-10-31 22:00:17,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10751 conditions, 2427 events. 1622/2427 cut-off events. For 8334/8334 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 10951 event pairs, 205 based on Foata normal form. 20/2447 useless extension candidates. Maximal degree in co-relation 6855. Up to 828 conditions per place. [2024-10-31 22:00:17,846 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 195 selfloop transitions, 78 changer transitions 0/274 dead transitions. [2024-10-31 22:00:17,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 274 transitions, 2215 flow [2024-10-31 22:00:17,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-31 22:00:17,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-31 22:00:17,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 311 transitions. [2024-10-31 22:00:17,852 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5235690235690236 [2024-10-31 22:00:17,852 INFO L175 Difference]: Start difference. First operand has 54 places, 70 transitions, 529 flow. Second operand 22 states and 311 transitions. [2024-10-31 22:00:17,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 274 transitions, 2215 flow [2024-10-31 22:00:17,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 274 transitions, 2129 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:17,908 INFO L231 Difference]: Finished difference. Result has 91 places, 125 transitions, 1239 flow [2024-10-31 22:00:17,908 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1239, PETRI_PLACES=91, PETRI_TRANSITIONS=125} [2024-10-31 22:00:17,909 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 61 predicate places. [2024-10-31 22:00:17,909 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 125 transitions, 1239 flow [2024-10-31 22:00:17,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.066666666666666) internal successors, (106), 15 states have internal predecessors, (106), 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 22:00:17,910 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:17,910 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:17,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:00:18,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:18,112 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 22:00:18,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:18,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1794847529, now seen corresponding path program 1 times [2024-10-31 22:00:18,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:18,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870373623] [2024-10-31 22:00:18,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:18,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:18,313 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 22:00:18,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:18,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870373623] [2024-10-31 22:00:18,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870373623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:18,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:18,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:00:18,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778805009] [2024-10-31 22:00:18,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:18,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:00:18,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:18,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:00:18,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:00:18,318 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-31 22:00:18,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 125 transitions, 1239 flow. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 22:00:18,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:18,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-31 22:00:18,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:19,139 INFO L124 PetriNetUnfolderBase]: 1691/2554 cut-off events. [2024-10-31 22:00:19,139 INFO L125 PetriNetUnfolderBase]: For 22464/22464 co-relation queries the response was YES. [2024-10-31 22:00:19,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14661 conditions, 2554 events. 1691/2554 cut-off events. For 22464/22464 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 11908 event pairs, 534 based on Foata normal form. 12/2566 useless extension candidates. Maximal degree in co-relation 11955. Up to 1538 conditions per place. [2024-10-31 22:00:19,181 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 157 selfloop transitions, 41 changer transitions 5/204 dead transitions. [2024-10-31 22:00:19,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 204 transitions, 2311 flow [2024-10-31 22:00:19,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:00:19,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:00:19,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 103 transitions. [2024-10-31 22:00:19,183 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.544973544973545 [2024-10-31 22:00:19,184 INFO L175 Difference]: Start difference. First operand has 91 places, 125 transitions, 1239 flow. Second operand 7 states and 103 transitions. [2024-10-31 22:00:19,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 204 transitions, 2311 flow [2024-10-31 22:00:19,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 204 transitions, 2199 flow, removed 56 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:19,351 INFO L231 Difference]: Finished difference. Result has 101 places, 133 transitions, 1385 flow [2024-10-31 22:00:19,352 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=1151, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1385, PETRI_PLACES=101, PETRI_TRANSITIONS=133} [2024-10-31 22:00:19,353 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 71 predicate places. [2024-10-31 22:00:19,354 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 133 transitions, 1385 flow [2024-10-31 22:00:19,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 22:00:19,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:19,355 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:19,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:00:19,356 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 22:00:19,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:19,356 INFO L85 PathProgramCache]: Analyzing trace with hash 670652976, now seen corresponding path program 5 times [2024-10-31 22:00:19,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:19,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001478708] [2024-10-31 22:00:19,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:19,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:19,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:19,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:19,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001478708] [2024-10-31 22:00:19,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001478708] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:19,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852317144] [2024-10-31 22:00:19,648 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-31 22:00:19,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:19,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:19,651 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:19,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:00:19,792 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:00:19,793 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:19,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 22:00:19,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:19,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:19,963 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:20,131 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 22:00:20,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852317144] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:20,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:00:20,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 8] total 15 [2024-10-31 22:00:20,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492110063] [2024-10-31 22:00:20,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:20,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:20,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:20,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:20,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:00:20,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-31 22:00:20,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 133 transitions, 1385 flow. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 22:00:20,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:20,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-31 22:00:20,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:20,863 INFO L124 PetriNetUnfolderBase]: 1724/2601 cut-off events. [2024-10-31 22:00:20,863 INFO L125 PetriNetUnfolderBase]: For 28627/28627 co-relation queries the response was YES. [2024-10-31 22:00:20,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15658 conditions, 2601 events. 1724/2601 cut-off events. For 28627/28627 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 11940 event pairs, 599 based on Foata normal form. 12/2613 useless extension candidates. Maximal degree in co-relation 14939. Up to 1250 conditions per place. [2024-10-31 22:00:20,904 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 146 selfloop transitions, 30 changer transitions 0/177 dead transitions. [2024-10-31 22:00:20,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 177 transitions, 2099 flow [2024-10-31 22:00:20,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:20,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 93 transitions. [2024-10-31 22:00:20,907 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2024-10-31 22:00:20,907 INFO L175 Difference]: Start difference. First operand has 101 places, 133 transitions, 1385 flow. Second operand 6 states and 93 transitions. [2024-10-31 22:00:20,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 177 transitions, 2099 flow [2024-10-31 22:00:21,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 177 transitions, 1991 flow, removed 26 selfloop flow, removed 3 redundant places. [2024-10-31 22:00:21,023 INFO L231 Difference]: Finished difference. Result has 105 places, 140 transitions, 1456 flow [2024-10-31 22:00:21,024 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=1279, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1456, PETRI_PLACES=105, PETRI_TRANSITIONS=140} [2024-10-31 22:00:21,024 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 75 predicate places. [2024-10-31 22:00:21,025 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 140 transitions, 1456 flow [2024-10-31 22:00:21,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 22:00:21,025 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:21,025 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:21,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:00:21,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-31 22:00:21,229 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 22:00:21,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:21,230 INFO L85 PathProgramCache]: Analyzing trace with hash 431310106, now seen corresponding path program 6 times [2024-10-31 22:00:21,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:21,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815037329] [2024-10-31 22:00:21,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:21,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:21,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:21,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:21,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815037329] [2024-10-31 22:00:21,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815037329] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:21,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791651553] [2024-10-31 22:00:21,436 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-31 22:00:21,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:21,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:21,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:21,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:00:21,539 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-10-31 22:00:21,539 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:21,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 22:00:21,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:21,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:21,660 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:22,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:22,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791651553] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:22,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:22,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 15 [2024-10-31 22:00:22,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605788406] [2024-10-31 22:00:22,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:22,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-31 22:00:22,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:22,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-31 22:00:22,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:00:22,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-31 22:00:22,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 140 transitions, 1456 flow. Second operand has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 states have internal predecessors, (109), 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 22:00:22,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:22,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-31 22:00:22,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:23,926 INFO L124 PetriNetUnfolderBase]: 2427/3690 cut-off events. [2024-10-31 22:00:23,926 INFO L125 PetriNetUnfolderBase]: For 43545/43545 co-relation queries the response was YES. [2024-10-31 22:00:23,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22814 conditions, 3690 events. 2427/3690 cut-off events. For 43545/43545 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 18620 event pairs, 267 based on Foata normal form. 29/3719 useless extension candidates. Maximal degree in co-relation 21833. Up to 1281 conditions per place. [2024-10-31 22:00:23,971 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 211 selfloop transitions, 214 changer transitions 4/430 dead transitions. [2024-10-31 22:00:23,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 430 transitions, 5280 flow [2024-10-31 22:00:23,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-31 22:00:23,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-31 22:00:23,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 286 transitions. [2024-10-31 22:00:23,974 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5044091710758377 [2024-10-31 22:00:23,974 INFO L175 Difference]: Start difference. First operand has 105 places, 140 transitions, 1456 flow. Second operand 21 states and 286 transitions. [2024-10-31 22:00:23,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 430 transitions, 5280 flow [2024-10-31 22:00:24,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 430 transitions, 5178 flow, removed 31 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:24,266 INFO L231 Difference]: Finished difference. Result has 139 places, 294 transitions, 4102 flow [2024-10-31 22:00:24,266 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=1401, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4102, PETRI_PLACES=139, PETRI_TRANSITIONS=294} [2024-10-31 22:00:24,267 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 109 predicate places. [2024-10-31 22:00:24,267 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 294 transitions, 4102 flow [2024-10-31 22:00:24,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 states have internal predecessors, (109), 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 22:00:24,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:24,268 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:24,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:00:24,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:24,468 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 22:00:24,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:24,469 INFO L85 PathProgramCache]: Analyzing trace with hash 18483039, now seen corresponding path program 2 times [2024-10-31 22:00:24,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:24,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106466124] [2024-10-31 22:00:24,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:24,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:24,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:24,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106466124] [2024-10-31 22:00:24,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106466124] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:24,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862142241] [2024-10-31 22:00:24,648 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:24,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:24,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:24,651 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:24,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:00:24,734 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:00:24,734 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:24,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 22:00:24,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:24,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:24,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:25,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:25,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862142241] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:25,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:25,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 15 [2024-10-31 22:00:25,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638938265] [2024-10-31 22:00:25,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:25,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-31 22:00:25,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:25,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-31 22:00:25,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:00:25,489 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-31 22:00:25,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 294 transitions, 4102 flow. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 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 22:00:25,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:25,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-31 22:00:25,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:28,020 INFO L124 PetriNetUnfolderBase]: 3803/5798 cut-off events. [2024-10-31 22:00:28,020 INFO L125 PetriNetUnfolderBase]: For 114186/114186 co-relation queries the response was YES. [2024-10-31 22:00:28,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43681 conditions, 5798 events. 3803/5798 cut-off events. For 114186/114186 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 32061 event pairs, 510 based on Foata normal form. 31/5829 useless extension candidates. Maximal degree in co-relation 41483. Up to 2067 conditions per place. [2024-10-31 22:00:28,163 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 345 selfloop transitions, 304 changer transitions 0/650 dead transitions. [2024-10-31 22:00:28,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 650 transitions, 9778 flow [2024-10-31 22:00:28,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-31 22:00:28,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-31 22:00:28,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 322 transitions. [2024-10-31 22:00:28,166 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5420875420875421 [2024-10-31 22:00:28,166 INFO L175 Difference]: Start difference. First operand has 139 places, 294 transitions, 4102 flow. Second operand 22 states and 322 transitions. [2024-10-31 22:00:28,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 650 transitions, 9778 flow [2024-10-31 22:00:29,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 650 transitions, 9092 flow, removed 343 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:29,351 INFO L231 Difference]: Finished difference. Result has 178 places, 428 transitions, 6810 flow [2024-10-31 22:00:29,352 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=3720, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=181, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=6810, PETRI_PLACES=178, PETRI_TRANSITIONS=428} [2024-10-31 22:00:29,353 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 148 predicate places. [2024-10-31 22:00:29,353 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 428 transitions, 6810 flow [2024-10-31 22:00:29,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 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 22:00:29,354 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:29,354 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:29,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:29,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:29,558 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:00:29,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:29,559 INFO L85 PathProgramCache]: Analyzing trace with hash -927218028, now seen corresponding path program 7 times [2024-10-31 22:00:29,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:29,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047055308] [2024-10-31 22:00:29,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:29,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:29,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:29,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:29,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047055308] [2024-10-31 22:00:29,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047055308] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:29,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570696827] [2024-10-31 22:00:29,773 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-31 22:00:29,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:29,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:29,776 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:29,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:00:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:29,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 22:00:29,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:30,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:30,021 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:30,285 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 22:00:30,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570696827] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:30,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:00:30,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 8] total 16 [2024-10-31 22:00:30,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559259986] [2024-10-31 22:00:30,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:30,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:00:30,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:30,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:00:30,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:00:30,288 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-31 22:00:30,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 428 transitions, 6810 flow. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 22:00:30,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:30,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-31 22:00:30,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:31,944 INFO L124 PetriNetUnfolderBase]: 3830/5848 cut-off events. [2024-10-31 22:00:31,945 INFO L125 PetriNetUnfolderBase]: For 126500/126500 co-relation queries the response was YES. [2024-10-31 22:00:31,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47069 conditions, 5848 events. 3830/5848 cut-off events. For 126500/126500 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 32412 event pairs, 929 based on Foata normal form. 26/5874 useless extension candidates. Maximal degree in co-relation 46270. Up to 3301 conditions per place. [2024-10-31 22:00:32,029 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 407 selfloop transitions, 84 changer transitions 0/492 dead transitions. [2024-10-31 22:00:32,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 492 transitions, 8626 flow [2024-10-31 22:00:32,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:32,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:32,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 92 transitions. [2024-10-31 22:00:32,031 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5679012345679012 [2024-10-31 22:00:32,031 INFO L175 Difference]: Start difference. First operand has 178 places, 428 transitions, 6810 flow. Second operand 6 states and 92 transitions. [2024-10-31 22:00:32,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 492 transitions, 8626 flow [2024-10-31 22:00:32,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 492 transitions, 8414 flow, removed 106 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:32,689 INFO L231 Difference]: Finished difference. Result has 183 places, 433 transitions, 6908 flow [2024-10-31 22:00:32,689 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=6644, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6908, PETRI_PLACES=183, PETRI_TRANSITIONS=433} [2024-10-31 22:00:32,690 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 153 predicate places. [2024-10-31 22:00:32,690 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 433 transitions, 6908 flow [2024-10-31 22:00:32,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 22:00:32,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:32,691 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:32,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 22:00:32,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 22:00:32,892 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:00:32,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:32,892 INFO L85 PathProgramCache]: Analyzing trace with hash -105940396, now seen corresponding path program 8 times [2024-10-31 22:00:32,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:32,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397372969] [2024-10-31 22:00:32,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:32,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:33,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:33,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:33,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397372969] [2024-10-31 22:00:33,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397372969] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:33,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697735006] [2024-10-31 22:00:33,158 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:33,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:33,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:33,160 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:33,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 22:00:33,239 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:00:33,239 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:33,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 22:00:33,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:33,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:33,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:33,528 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 22:00:33,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697735006] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:33,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:00:33,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 8] total 15 [2024-10-31 22:00:33,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359748567] [2024-10-31 22:00:33,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:33,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:33,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:33,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:33,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:00:33,531 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-31 22:00:33,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 433 transitions, 6908 flow. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 22:00:33,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:33,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-31 22:00:33,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:35,083 INFO L124 PetriNetUnfolderBase]: 4197/6341 cut-off events. [2024-10-31 22:00:35,083 INFO L125 PetriNetUnfolderBase]: For 131212/131212 co-relation queries the response was YES. [2024-10-31 22:00:35,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50616 conditions, 6341 events. 4197/6341 cut-off events. For 131212/131212 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 35005 event pairs, 869 based on Foata normal form. 26/6367 useless extension candidates. Maximal degree in co-relation 50029. Up to 3526 conditions per place. [2024-10-31 22:00:35,175 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 396 selfloop transitions, 146 changer transitions 0/543 dead transitions. [2024-10-31 22:00:35,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 543 transitions, 9613 flow [2024-10-31 22:00:35,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:35,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:35,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 92 transitions. [2024-10-31 22:00:35,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5679012345679012 [2024-10-31 22:00:35,177 INFO L175 Difference]: Start difference. First operand has 183 places, 433 transitions, 6908 flow. Second operand 6 states and 92 transitions. [2024-10-31 22:00:35,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 543 transitions, 9613 flow [2024-10-31 22:00:36,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 543 transitions, 9431 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:00:36,036 INFO L231 Difference]: Finished difference. Result has 188 places, 486 transitions, 8321 flow [2024-10-31 22:00:36,037 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=6740, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8321, PETRI_PLACES=188, PETRI_TRANSITIONS=486} [2024-10-31 22:00:36,037 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 158 predicate places. [2024-10-31 22:00:36,037 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 486 transitions, 8321 flow [2024-10-31 22:00:36,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 22:00:36,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:36,038 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:36,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a8ca50-328c-477f-99fb-55d509270ca4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0