./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/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_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/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_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/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 0f1f05cefb3bd84a08d6d936499ca6f215f6edf0bfbf58f9874b646b6408f7c8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:06:29,422 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:06:29,521 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:06:29,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:06:29,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:06:29,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:06:29,568 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:06:29,568 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:06:29,569 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:06:29,571 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:06:29,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:06:29,571 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:06:29,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:06:29,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:06:29,573 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:06:29,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:06:29,576 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:06:29,578 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:06:29,579 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:06:29,579 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:06:29,579 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:06:29,580 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:06:29,580 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:06:29,580 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:06:29,581 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:06:29,581 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:06:29,581 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:06:29,582 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:06:29,583 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:06:29,583 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:06:29,584 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:06:29,584 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:06:29,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:06:29,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:29,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:06:29,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:06:29,586 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:06:29,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:06:29,586 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:06:29,588 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:06:29,588 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:06:29,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:06:29,589 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_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f1f05cefb3bd84a08d6d936499ca6f215f6edf0bfbf58f9874b646b6408f7c8 [2024-10-31 22:06:29,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:06:29,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:06:29,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:06:29,947 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:06:29,947 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:06:29,948 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c Unable to find full path for "g++" [2024-10-31 22:06:32,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:06:32,269 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:06:32,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2024-10-31 22:06:32,278 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/bin/uautomizer-verify-4GaUIPS5ZU/data/bb6cd2b79/86d9434deeac486d946ff8fe4b9924a3/FLAG402d6e6a4 [2024-10-31 22:06:32,293 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/bin/uautomizer-verify-4GaUIPS5ZU/data/bb6cd2b79/86d9434deeac486d946ff8fe4b9924a3 [2024-10-31 22:06:32,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:06:32,299 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:06:32,301 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:32,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:06:32,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:06:32,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:32" (1/1) ... [2024-10-31 22:06:32,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a6c7bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:32, skipping insertion in model container [2024-10-31 22:06:32,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:32" (1/1) ... [2024-10-31 22:06:32,355 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:06:32,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:32,686 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:06:32,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:32,753 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:06:32,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:32 WrapperNode [2024-10-31 22:06:32,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:32,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:32,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:06:32,756 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:06:32,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:32" (1/1) ... [2024-10-31 22:06:32,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:32" (1/1) ... [2024-10-31 22:06:32,814 INFO L138 Inliner]: procedures = 21, calls = 96, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 254 [2024-10-31 22:06:32,814 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:32,815 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:06:32,815 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:06:32,815 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:06:32,831 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:32" (1/1) ... [2024-10-31 22:06:32,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:32" (1/1) ... [2024-10-31 22:06:32,837 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:32" (1/1) ... [2024-10-31 22:06:32,865 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:06:32,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:32" (1/1) ... [2024-10-31 22:06:32,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:32" (1/1) ... [2024-10-31 22:06:32,879 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:32" (1/1) ... [2024-10-31 22:06:32,885 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:32" (1/1) ... [2024-10-31 22:06:32,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:32" (1/1) ... [2024-10-31 22:06:32,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:32" (1/1) ... [2024-10-31 22:06:32,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:06:32,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:06:32,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:06:32,897 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:06:32,898 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:32" (1/1) ... [2024-10-31 22:06:32,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:32,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:32,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:32,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eef16c-dc35-47c4-90c0-291b6b5e1c2a/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:06:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:06:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:06:32,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:06:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:06:32,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:06:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:06:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:06:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:06:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:06:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:06:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:06:32,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:06:32,977 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:06:33,086 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:06:33,088 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:06:33,486 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:06:33,486 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:06:33,893 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:06:33,894 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:06:33,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:33 BoogieIcfgContainer [2024-10-31 22:06:33,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:06:33,898 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:06:33,898 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:06:33,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:06:33,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:06:32" (1/3) ... [2024-10-31 22:06:33,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303830b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:33, skipping insertion in model container [2024-10-31 22:06:33,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:32" (2/3) ... [2024-10-31 22:06:33,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303830b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:33, skipping insertion in model container [2024-10-31 22:06:33,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:33" (3/3) ... [2024-10-31 22:06:33,909 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2024-10-31 22:06:33,929 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:06:33,930 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:06:33,930 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:06:34,002 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:06:34,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 60 transitions, 141 flow [2024-10-31 22:06:34,097 INFO L124 PetriNetUnfolderBase]: 0/57 cut-off events. [2024-10-31 22:06:34,109 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:06:34,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 57 events. 0/57 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-31 22:06:34,115 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 60 transitions, 141 flow [2024-10-31 22:06:34,122 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 56 transitions, 130 flow [2024-10-31 22:06:34,139 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:34,149 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;@3bdce8c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:34,150 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-31 22:06:34,192 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:06:34,192 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2024-10-31 22:06:34,193 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:06:34,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:34,194 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:34,195 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:34,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:34,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1618045045, now seen corresponding path program 1 times [2024-10-31 22:06:34,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:34,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298876225] [2024-10-31 22:06:34,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:34,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:35,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:35,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298876225] [2024-10-31 22:06:35,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298876225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:35,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:35,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:06:35,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038775600] [2024-10-31 22:06:35,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:35,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:06:35,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:35,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:06:35,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:06:35,375 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 60 [2024-10-31 22:06:35,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 130 flow. Second operand has 9 states, 9 states have (on average 26.88888888888889) internal successors, (242), 9 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:35,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:35,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 60 [2024-10-31 22:06:35,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:37,381 INFO L124 PetriNetUnfolderBase]: 4441/7447 cut-off events. [2024-10-31 22:06:37,381 INFO L125 PetriNetUnfolderBase]: For 414/414 co-relation queries the response was YES. [2024-10-31 22:06:37,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14555 conditions, 7447 events. 4441/7447 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 50319 event pairs, 1599 based on Foata normal form. 6/7364 useless extension candidates. Maximal degree in co-relation 13435. Up to 2233 conditions per place. [2024-10-31 22:06:37,445 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 135 selfloop transitions, 15 changer transitions 18/187 dead transitions. [2024-10-31 22:06:37,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 187 transitions, 782 flow [2024-10-31 22:06:37,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:06:37,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-31 22:06:37,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 427 transitions. [2024-10-31 22:06:37,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.646969696969697 [2024-10-31 22:06:37,468 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 130 flow. Second operand 11 states and 427 transitions. [2024-10-31 22:06:37,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 187 transitions, 782 flow [2024-10-31 22:06:37,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 187 transitions, 734 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 22:06:37,535 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 206 flow [2024-10-31 22:06:37,537 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=206, PETRI_PLACES=72, PETRI_TRANSITIONS=70} [2024-10-31 22:06:37,541 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 6 predicate places. [2024-10-31 22:06:37,541 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 206 flow [2024-10-31 22:06:37,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 26.88888888888889) internal successors, (242), 9 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:37,542 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:37,542 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:37,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:06:37,543 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:37,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:37,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1373225363, now seen corresponding path program 2 times [2024-10-31 22:06:37,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:37,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723269269] [2024-10-31 22:06:37,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:37,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:38,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:38,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:38,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723269269] [2024-10-31 22:06:38,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723269269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:38,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:38,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:06:38,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555723999] [2024-10-31 22:06:38,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:38,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:06:38,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:38,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:06:38,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:06:38,540 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-10-31 22:06:38,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 70 transitions, 206 flow. Second operand has 8 states, 8 states have (on average 26.625) internal successors, (213), 8 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:38,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:38,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-10-31 22:06:38,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:40,255 INFO L124 PetriNetUnfolderBase]: 6540/10846 cut-off events. [2024-10-31 22:06:40,256 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-10-31 22:06:40,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21747 conditions, 10846 events. 6540/10846 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 73844 event pairs, 2248 based on Foata normal form. 122/10702 useless extension candidates. Maximal degree in co-relation 21720. Up to 8293 conditions per place. [2024-10-31 22:06:40,329 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 99 selfloop transitions, 21 changer transitions 0/154 dead transitions. [2024-10-31 22:06:40,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 154 transitions, 620 flow [2024-10-31 22:06:40,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:06:40,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:06:40,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 297 transitions. [2024-10-31 22:06:40,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.61875 [2024-10-31 22:06:40,332 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 206 flow. Second operand 8 states and 297 transitions. [2024-10-31 22:06:40,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 154 transitions, 620 flow [2024-10-31 22:06:40,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 154 transitions, 618 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-31 22:06:40,345 INFO L231 Difference]: Finished difference. Result has 80 places, 91 transitions, 330 flow [2024-10-31 22:06:40,346 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=330, PETRI_PLACES=80, PETRI_TRANSITIONS=91} [2024-10-31 22:06:40,346 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 14 predicate places. [2024-10-31 22:06:40,347 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 91 transitions, 330 flow [2024-10-31 22:06:40,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 26.625) internal successors, (213), 8 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:40,348 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:40,348 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:40,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:06:40,349 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:40,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:40,350 INFO L85 PathProgramCache]: Analyzing trace with hash 607216483, now seen corresponding path program 3 times [2024-10-31 22:06:40,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:40,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487206618] [2024-10-31 22:06:40,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:40,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:40,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:40,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487206618] [2024-10-31 22:06:40,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487206618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:40,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:40,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:40,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184797289] [2024-10-31 22:06:40,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:40,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:40,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:40,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:40,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:40,553 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2024-10-31 22:06:40,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 91 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:40,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:40,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2024-10-31 22:06:40,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:41,525 INFO L124 PetriNetUnfolderBase]: 3715/7293 cut-off events. [2024-10-31 22:06:41,528 INFO L125 PetriNetUnfolderBase]: For 1174/1207 co-relation queries the response was YES. [2024-10-31 22:06:41,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15505 conditions, 7293 events. 3715/7293 cut-off events. For 1174/1207 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 56496 event pairs, 2476 based on Foata normal form. 121/7111 useless extension candidates. Maximal degree in co-relation 12316. Up to 4345 conditions per place. [2024-10-31 22:06:41,598 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 58 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-10-31 22:06:41,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 109 transitions, 504 flow [2024-10-31 22:06:41,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:41,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:41,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-10-31 22:06:41,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7111111111111111 [2024-10-31 22:06:41,600 INFO L175 Difference]: Start difference. First operand has 80 places, 91 transitions, 330 flow. Second operand 3 states and 128 transitions. [2024-10-31 22:06:41,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 109 transitions, 504 flow [2024-10-31 22:06:41,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 109 transitions, 504 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:06:41,617 INFO L231 Difference]: Finished difference. Result has 83 places, 91 transitions, 340 flow [2024-10-31 22:06:41,617 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=83, PETRI_TRANSITIONS=91} [2024-10-31 22:06:41,618 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 17 predicate places. [2024-10-31 22:06:41,618 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 91 transitions, 340 flow [2024-10-31 22:06:41,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:41,619 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:41,619 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:41,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:06:41,620 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:41,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:41,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1819799741, now seen corresponding path program 4 times [2024-10-31 22:06:41,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:41,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956855093] [2024-10-31 22:06:41,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:41,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:41,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:41,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:41,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956855093] [2024-10-31 22:06:41,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956855093] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:41,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:41,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:41,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968706616] [2024-10-31 22:06:41,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:41,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:41,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:41,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:41,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:41,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2024-10-31 22:06:41,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 91 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:41,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:41,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2024-10-31 22:06:41,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:42,895 INFO L124 PetriNetUnfolderBase]: 3611/7230 cut-off events. [2024-10-31 22:06:42,896 INFO L125 PetriNetUnfolderBase]: For 1524/1582 co-relation queries the response was YES. [2024-10-31 22:06:42,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15955 conditions, 7230 events. 3611/7230 cut-off events. For 1524/1582 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 57341 event pairs, 2624 based on Foata normal form. 102/7017 useless extension candidates. Maximal degree in co-relation 12615. Up to 4482 conditions per place. [2024-10-31 22:06:42,967 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 58 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-10-31 22:06:42,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 109 transitions, 523 flow [2024-10-31 22:06:42,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:42,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:42,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 127 transitions. [2024-10-31 22:06:42,969 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7055555555555556 [2024-10-31 22:06:42,969 INFO L175 Difference]: Start difference. First operand has 83 places, 91 transitions, 340 flow. Second operand 3 states and 127 transitions. [2024-10-31 22:06:42,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 109 transitions, 523 flow [2024-10-31 22:06:42,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 109 transitions, 519 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:42,984 INFO L231 Difference]: Finished difference. Result has 84 places, 91 transitions, 346 flow [2024-10-31 22:06:42,985 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=84, PETRI_TRANSITIONS=91} [2024-10-31 22:06:42,986 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 18 predicate places. [2024-10-31 22:06:42,987 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 91 transitions, 346 flow [2024-10-31 22:06:42,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:42,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:42,989 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:42,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:06:42,990 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:42,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:42,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1160101649, now seen corresponding path program 5 times [2024-10-31 22:06:42,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:42,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937916195] [2024-10-31 22:06:42,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:42,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:43,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:43,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:43,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937916195] [2024-10-31 22:06:43,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937916195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:43,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:43,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:06:43,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838700439] [2024-10-31 22:06:43,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:43,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:06:43,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:43,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:06:43,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:06:43,345 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 60 [2024-10-31 22:06:43,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 91 transitions, 346 flow. Second operand has 9 states, 9 states have (on average 26.88888888888889) internal successors, (242), 9 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:43,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:43,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 60 [2024-10-31 22:06:43,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:45,619 INFO L124 PetriNetUnfolderBase]: 7144/12461 cut-off events. [2024-10-31 22:06:45,619 INFO L125 PetriNetUnfolderBase]: For 3536/3617 co-relation queries the response was YES. [2024-10-31 22:06:45,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29498 conditions, 12461 events. 7144/12461 cut-off events. For 3536/3617 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 94199 event pairs, 2320 based on Foata normal form. 22/12227 useless extension candidates. Maximal degree in co-relation 19386. Up to 3074 conditions per place. [2024-10-31 22:06:45,876 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 184 selfloop transitions, 26 changer transitions 18/257 dead transitions. [2024-10-31 22:06:45,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 257 transitions, 1326 flow [2024-10-31 22:06:45,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:06:45,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-31 22:06:45,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 436 transitions. [2024-10-31 22:06:45,879 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6606060606060606 [2024-10-31 22:06:45,879 INFO L175 Difference]: Start difference. First operand has 84 places, 91 transitions, 346 flow. Second operand 11 states and 436 transitions. [2024-10-31 22:06:45,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 257 transitions, 1326 flow [2024-10-31 22:06:45,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 257 transitions, 1322 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:45,897 INFO L231 Difference]: Finished difference. Result has 98 places, 112 transitions, 549 flow [2024-10-31 22:06:45,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=549, PETRI_PLACES=98, PETRI_TRANSITIONS=112} [2024-10-31 22:06:45,898 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 32 predicate places. [2024-10-31 22:06:45,899 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 112 transitions, 549 flow [2024-10-31 22:06:45,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 26.88888888888889) internal successors, (242), 9 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:45,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:45,900 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:45,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:06:45,900 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:45,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:45,901 INFO L85 PathProgramCache]: Analyzing trace with hash -596923145, now seen corresponding path program 6 times [2024-10-31 22:06:45,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:45,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297869131] [2024-10-31 22:06:45,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:45,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:46,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:46,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297869131] [2024-10-31 22:06:46,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297869131] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:46,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:46,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:06:46,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648282334] [2024-10-31 22:06:46,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:46,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:06:46,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:46,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:06:46,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:46,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 60 [2024-10-31 22:06:46,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 112 transitions, 549 flow. Second operand has 7 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:46,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:46,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 60 [2024-10-31 22:06:46,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:48,945 INFO L124 PetriNetUnfolderBase]: 10731/19003 cut-off events. [2024-10-31 22:06:48,946 INFO L125 PetriNetUnfolderBase]: For 5536/5594 co-relation queries the response was YES. [2024-10-31 22:06:49,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45129 conditions, 19003 events. 10731/19003 cut-off events. For 5536/5594 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 150488 event pairs, 2411 based on Foata normal form. 144/18704 useless extension candidates. Maximal degree in co-relation 44997. Up to 4897 conditions per place. [2024-10-31 22:06:49,118 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 127 selfloop transitions, 36 changer transitions 2/227 dead transitions. [2024-10-31 22:06:49,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 227 transitions, 1239 flow [2024-10-31 22:06:49,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:06:49,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:06:49,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 344 transitions. [2024-10-31 22:06:49,121 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6370370370370371 [2024-10-31 22:06:49,122 INFO L175 Difference]: Start difference. First operand has 98 places, 112 transitions, 549 flow. Second operand 9 states and 344 transitions. [2024-10-31 22:06:49,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 227 transitions, 1239 flow [2024-10-31 22:06:49,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 227 transitions, 1231 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-10-31 22:06:49,200 INFO L231 Difference]: Finished difference. Result has 108 places, 139 transitions, 814 flow [2024-10-31 22:06:49,200 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=814, PETRI_PLACES=108, PETRI_TRANSITIONS=139} [2024-10-31 22:06:49,201 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 42 predicate places. [2024-10-31 22:06:49,202 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 139 transitions, 814 flow [2024-10-31 22:06:49,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:49,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:49,202 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:49,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:06:49,203 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:49,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:49,204 INFO L85 PathProgramCache]: Analyzing trace with hash 232964883, now seen corresponding path program 7 times [2024-10-31 22:06:49,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:49,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160819390] [2024-10-31 22:06:49,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:49,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:49,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:49,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:49,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160819390] [2024-10-31 22:06:49,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160819390] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:49,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:49,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:06:49,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815030841] [2024-10-31 22:06:49,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:49,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:06:49,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:49,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:06:49,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:06:49,543 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 60 [2024-10-31 22:06:49,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 139 transitions, 814 flow. Second operand has 9 states, 9 states have (on average 26.88888888888889) internal successors, (242), 9 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:49,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:49,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 60 [2024-10-31 22:06:49,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:52,604 INFO L124 PetriNetUnfolderBase]: 12725/21517 cut-off events. [2024-10-31 22:06:52,605 INFO L125 PetriNetUnfolderBase]: For 18748/19410 co-relation queries the response was YES. [2024-10-31 22:06:52,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59319 conditions, 21517 events. 12725/21517 cut-off events. For 18748/19410 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 167556 event pairs, 4560 based on Foata normal form. 445/21405 useless extension candidates. Maximal degree in co-relation 56416. Up to 6250 conditions per place. [2024-10-31 22:06:52,789 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 221 selfloop transitions, 29 changer transitions 23/311 dead transitions. [2024-10-31 22:06:52,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 311 transitions, 2130 flow [2024-10-31 22:06:52,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:06:52,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-31 22:06:52,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 432 transitions. [2024-10-31 22:06:52,794 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2024-10-31 22:06:52,794 INFO L175 Difference]: Start difference. First operand has 108 places, 139 transitions, 814 flow. Second operand 11 states and 432 transitions. [2024-10-31 22:06:52,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 311 transitions, 2130 flow [2024-10-31 22:06:53,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 311 transitions, 2121 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-10-31 22:06:53,032 INFO L231 Difference]: Finished difference. Result has 121 places, 142 transitions, 917 flow [2024-10-31 22:06:53,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=917, PETRI_PLACES=121, PETRI_TRANSITIONS=142} [2024-10-31 22:06:53,033 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 55 predicate places. [2024-10-31 22:06:53,034 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 142 transitions, 917 flow [2024-10-31 22:06:53,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 26.88888888888889) internal successors, (242), 9 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:53,034 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:53,034 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:53,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:06:53,035 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:53,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:53,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1290321525, now seen corresponding path program 8 times [2024-10-31 22:06:53,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:53,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377108590] [2024-10-31 22:06:53,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:53,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:53,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:53,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:53,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377108590] [2024-10-31 22:06:53,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377108590] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:53,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:53,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:53,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577669581] [2024-10-31 22:06:53,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:53,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:53,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:53,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:53,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:53,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2024-10-31 22:06:53,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 142 transitions, 917 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:53,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:53,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2024-10-31 22:06:53,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:55,452 INFO L124 PetriNetUnfolderBase]: 8387/16424 cut-off events. [2024-10-31 22:06:55,453 INFO L125 PetriNetUnfolderBase]: For 14702/15239 co-relation queries the response was YES. [2024-10-31 22:06:55,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43666 conditions, 16424 events. 8387/16424 cut-off events. For 14702/15239 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 140761 event pairs, 5886 based on Foata normal form. 522/16045 useless extension candidates. Maximal degree in co-relation 43509. Up to 10868 conditions per place. [2024-10-31 22:06:55,605 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 96 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2024-10-31 22:06:55,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 182 transitions, 1365 flow [2024-10-31 22:06:55,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:55,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:55,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions. [2024-10-31 22:06:55,607 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7166666666666667 [2024-10-31 22:06:55,607 INFO L175 Difference]: Start difference. First operand has 121 places, 142 transitions, 917 flow. Second operand 3 states and 129 transitions. [2024-10-31 22:06:55,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 182 transitions, 1365 flow [2024-10-31 22:06:55,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 182 transitions, 1328 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-10-31 22:06:55,859 INFO L231 Difference]: Finished difference. Result has 118 places, 142 transitions, 890 flow [2024-10-31 22:06:55,860 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=890, PETRI_PLACES=118, PETRI_TRANSITIONS=142} [2024-10-31 22:06:55,861 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 52 predicate places. [2024-10-31 22:06:55,863 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 142 transitions, 890 flow [2024-10-31 22:06:55,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:55,864 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:55,864 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:55,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:06:55,865 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:06:55,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:55,869 INFO L85 PathProgramCache]: Analyzing trace with hash 100541631, now seen corresponding path program 9 times [2024-10-31 22:06:55,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:55,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704332486] [2024-10-31 22:06:55,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:55,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:56,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:56,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:56,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704332486] [2024-10-31 22:06:56,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704332486] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:56,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:56,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-31 22:06:56,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060095979] [2024-10-31 22:06:56,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:56,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:06:56,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:56,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:06:56,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:06:56,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 60 [2024-10-31 22:06:56,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 142 transitions, 890 flow. Second operand has 12 states, 12 states have (on average 23.166666666666668) internal successors, (278), 12 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:56,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:56,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 60 [2024-10-31 22:06:56,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand