./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-theta/exponential-4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-theta/exponential-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB --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 6e0717c26865b2b98bbf38ebc229049821d555def6fcecec3e56a64fb6f63f98 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:38:26,288 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:38:26,384 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-27 23:38:26,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:38:26,394 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:38:26,427 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:38:26,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:38:26,428 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:38:26,428 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:38:26,428 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:38:26,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:38:26,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:38:26,429 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:38:26,429 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:38:26,429 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:38:26,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:38:26,429 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:38:26,430 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:38:26,431 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:38:26,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:38:26,431 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 23:38:26,431 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 23:38:26,432 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 23:38:26,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:38:26,432 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 23:38:26,432 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:38:26,432 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:38:26,432 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:38:26,432 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:38:26,432 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:38:26,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:38:26,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:38:26,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:38:26,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:38:26,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:38:26,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:38:26,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:38:26,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:38:26,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:38:26,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:38:26,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:38:26,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:38:26,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:38:26,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:38:26,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:38:26,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:38:26,435 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:38:26,435 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 6e0717c26865b2b98bbf38ebc229049821d555def6fcecec3e56a64fb6f63f98 [2024-11-27 23:38:26,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:38:26,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:38:26,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:38:26,761 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:38:26,761 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:38:26,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-theta/exponential-4.i [2024-11-27 23:38:29,575 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/data/1b06ae39c/e7e41d85eade443bba1a29b1caf0a9ac/FLAG71ec7acca [2024-11-27 23:38:29,956 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:38:29,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/sv-benchmarks/c/pthread-theta/exponential-4.i [2024-11-27 23:38:29,973 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/data/1b06ae39c/e7e41d85eade443bba1a29b1caf0a9ac/FLAG71ec7acca [2024-11-27 23:38:29,997 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/data/1b06ae39c/e7e41d85eade443bba1a29b1caf0a9ac [2024-11-27 23:38:30,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:38:30,003 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:38:30,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:38:30,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:38:30,010 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:38:30,012 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:38:29" (1/1) ... [2024-11-27 23:38:30,013 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@222ed6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30, skipping insertion in model container [2024-11-27 23:38:30,013 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:38:29" (1/1) ... [2024-11-27 23:38:30,062 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:38:30,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:38:30,400 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:38:30,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:38:30,523 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:38:30,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30 WrapperNode [2024-11-27 23:38:30,525 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:38:30,526 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:38:30,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:38:30,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:38:30,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30" (1/1) ... [2024-11-27 23:38:30,552 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30" (1/1) ... [2024-11-27 23:38:30,568 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2024-11-27 23:38:30,569 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:38:30,569 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:38:30,569 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:38:30,570 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:38:30,578 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30" (1/1) ... [2024-11-27 23:38:30,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30" (1/1) ... [2024-11-27 23:38:30,580 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30" (1/1) ... [2024-11-27 23:38:30,591 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:38:30,591 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30" (1/1) ... [2024-11-27 23:38:30,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30" (1/1) ... [2024-11-27 23:38:30,596 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30" (1/1) ... [2024-11-27 23:38:30,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30" (1/1) ... [2024-11-27 23:38:30,603 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30" (1/1) ... [2024-11-27 23:38:30,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30" (1/1) ... [2024-11-27 23:38:30,607 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30" (1/1) ... [2024-11-27 23:38:30,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:38:30,614 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:38:30,614 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:38:30,614 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:38:30,617 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30" (1/1) ... [2024-11-27 23:38:30,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:38:30,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:30,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:38:30,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:38:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:38:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-27 23:38:30,687 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-27 23:38:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-27 23:38:30,687 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-27 23:38:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:38:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:38:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:38:30,690 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 23:38:30,847 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:38:30,849 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:38:31,007 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 23:38:31,007 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:38:31,130 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:38:31,130 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:38:31,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:38:31 BoogieIcfgContainer [2024-11-27 23:38:31,131 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:38:31,135 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:38:31,135 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:38:31,141 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:38:31,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:38:29" (1/3) ... [2024-11-27 23:38:31,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654e7987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:38:31, skipping insertion in model container [2024-11-27 23:38:31,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30" (2/3) ... [2024-11-27 23:38:31,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654e7987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:38:31, skipping insertion in model container [2024-11-27 23:38:31,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:38:31" (3/3) ... [2024-11-27 23:38:31,145 INFO L128 eAbstractionObserver]: Analyzing ICFG exponential-4.i [2024-11-27 23:38:31,161 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:38:31,163 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG exponential-4.i that has 3 procedures, 24 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-27 23:38:31,163 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 23:38:31,216 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 23:38:31,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 62 flow [2024-11-27 23:38:31,286 INFO L124 PetriNetUnfolderBase]: 6/40 cut-off events. [2024-11-27 23:38:31,288 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:38:31,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 40 events. 6/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 84 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 25. Up to 4 conditions per place. [2024-11-27 23:38:31,291 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 62 flow [2024-11-27 23:38:31,294 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 25 transitions, 57 flow [2024-11-27 23:38:31,302 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:38:31,316 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;@522d535b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:38:31,316 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-27 23:38:31,332 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:38:31,332 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2024-11-27 23:38:31,332 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:38:31,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:31,333 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-27 23:38:31,333 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:31,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:31,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1728643728, now seen corresponding path program 1 times [2024-11-27 23:38:31,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:31,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531111916] [2024-11-27 23:38:31,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:31,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:31,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:31,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:31,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531111916] [2024-11-27 23:38:31,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531111916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:31,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:31,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:38:31,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059170185] [2024-11-27 23:38:31,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:31,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:38:31,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:31,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:38:31,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:38:31,701 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 27 [2024-11-27 23:38:31,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 25 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:31,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:31,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 27 [2024-11-27 23:38:31,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:31,809 INFO L124 PetriNetUnfolderBase]: 31/91 cut-off events. [2024-11-27 23:38:31,810 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:38:31,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 91 events. 31/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 340 event pairs, 13 based on Foata normal form. 8/90 useless extension candidates. Maximal degree in co-relation 150. Up to 53 conditions per place. [2024-11-27 23:38:31,816 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 14 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2024-11-27 23:38:31,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 25 transitions, 89 flow [2024-11-27 23:38:31,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:38:31,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:38:31,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2024-11-27 23:38:31,829 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6049382716049383 [2024-11-27 23:38:31,830 INFO L175 Difference]: Start difference. First operand has 28 places, 25 transitions, 57 flow. Second operand 3 states and 49 transitions. [2024-11-27 23:38:31,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 25 transitions, 89 flow [2024-11-27 23:38:31,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 25 transitions, 88 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:38:31,837 INFO L231 Difference]: Finished difference. Result has 29 places, 22 transitions, 58 flow [2024-11-27 23:38:31,840 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=29, PETRI_TRANSITIONS=22} [2024-11-27 23:38:31,848 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2024-11-27 23:38:31,848 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 22 transitions, 58 flow [2024-11-27 23:38:31,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:31,848 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:31,849 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:31,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:38:31,849 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:31,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:31,854 INFO L85 PathProgramCache]: Analyzing trace with hash 682274316, now seen corresponding path program 1 times [2024-11-27 23:38:31,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:31,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105345312] [2024-11-27 23:38:31,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:31,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:31,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:38:31,889 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:38:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:38:31,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 23:38:31,941 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:38:31,943 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-11-27 23:38:31,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-27 23:38:31,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2024-11-27 23:38:31,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-27 23:38:31,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:38:31,949 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-27 23:38:31,951 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-27 23:38:31,951 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-27 23:38:31,989 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 23:38:31,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 35 transitions, 90 flow [2024-11-27 23:38:32,019 INFO L124 PetriNetUnfolderBase]: 9/64 cut-off events. [2024-11-27 23:38:32,019 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-27 23:38:32,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 64 events. 9/64 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 147 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 53. Up to 6 conditions per place. [2024-11-27 23:38:32,020 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 35 transitions, 90 flow [2024-11-27 23:38:32,021 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 33 transitions, 84 flow [2024-11-27 23:38:32,022 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:38:32,023 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;@522d535b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:38:32,023 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-27 23:38:32,033 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:38:32,033 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2024-11-27 23:38:32,033 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:38:32,033 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:32,033 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-27 23:38:32,034 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:32,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:32,037 INFO L85 PathProgramCache]: Analyzing trace with hash -693222768, now seen corresponding path program 1 times [2024-11-27 23:38:32,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:32,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461937101] [2024-11-27 23:38:32,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:32,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:32,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:32,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:32,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461937101] [2024-11-27 23:38:32,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461937101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:32,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:32,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:38:32,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791459823] [2024-11-27 23:38:32,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:32,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:38:32,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:32,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:38:32,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:38:32,153 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-27 23:38:32,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:32,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:32,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-27 23:38:32,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:32,330 INFO L124 PetriNetUnfolderBase]: 283/571 cut-off events. [2024-11-27 23:38:32,331 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-27 23:38:32,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1064 conditions, 571 events. 283/571 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3224 event pairs, 111 based on Foata normal form. 40/537 useless extension candidates. Maximal degree in co-relation 444. Up to 433 conditions per place. [2024-11-27 23:38:32,341 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 20 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2024-11-27 23:38:32,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 35 transitions, 132 flow [2024-11-27 23:38:32,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:38:32,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:38:32,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-27 23:38:32,346 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.638095238095238 [2024-11-27 23:38:32,346 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 84 flow. Second operand 3 states and 67 transitions. [2024-11-27 23:38:32,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 35 transitions, 132 flow [2024-11-27 23:38:32,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 35 transitions, 131 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:38:32,348 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 89 flow [2024-11-27 23:38:32,348 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2024-11-27 23:38:32,350 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2024-11-27 23:38:32,351 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 89 flow [2024-11-27 23:38:32,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:32,351 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:32,352 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:32,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:38:32,352 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:32,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:32,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1831102606, now seen corresponding path program 1 times [2024-11-27 23:38:32,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:32,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090081175] [2024-11-27 23:38:32,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:32,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:32,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:32,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:32,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090081175] [2024-11-27 23:38:32,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090081175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:32,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:32,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:38:32,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036513984] [2024-11-27 23:38:32,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:32,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:38:32,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:32,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:38:32,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:38:32,491 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-27 23:38:32,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 89 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:32,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:32,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-27 23:38:32,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:32,675 INFO L124 PetriNetUnfolderBase]: 319/627 cut-off events. [2024-11-27 23:38:32,676 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-27 23:38:32,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1222 conditions, 627 events. 319/627 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3607 event pairs, 263 based on Foata normal form. 0/577 useless extension candidates. Maximal degree in co-relation 512. Up to 445 conditions per place. [2024-11-27 23:38:32,685 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 20 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2024-11-27 23:38:32,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 36 transitions, 145 flow [2024-11-27 23:38:32,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:38:32,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:38:32,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2024-11-27 23:38:32,690 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5642857142857143 [2024-11-27 23:38:32,691 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 89 flow. Second operand 4 states and 79 transitions. [2024-11-27 23:38:32,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 36 transitions, 145 flow [2024-11-27 23:38:32,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 36 transitions, 143 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:38:32,694 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 101 flow [2024-11-27 23:38:32,695 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=101, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2024-11-27 23:38:32,696 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2024-11-27 23:38:32,696 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 101 flow [2024-11-27 23:38:32,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:32,697 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:32,697 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:32,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:38:32,698 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:32,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:32,699 INFO L85 PathProgramCache]: Analyzing trace with hash 928934617, now seen corresponding path program 1 times [2024-11-27 23:38:32,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:32,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893862346] [2024-11-27 23:38:32,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:32,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:32,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:38:32,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:32,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893862346] [2024-11-27 23:38:32,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893862346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:32,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:32,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 23:38:32,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907876940] [2024-11-27 23:38:32,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:32,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:38:32,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:32,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:38:32,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:38:32,765 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-27 23:38:32,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:32,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:32,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-27 23:38:32,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:32,893 INFO L124 PetriNetUnfolderBase]: 319/607 cut-off events. [2024-11-27 23:38:32,893 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-27 23:38:32,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1300 conditions, 607 events. 319/607 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3432 event pairs, 299 based on Foata normal form. 20/567 useless extension candidates. Maximal degree in co-relation 550. Up to 501 conditions per place. [2024-11-27 23:38:32,900 INFO L140 encePairwiseOnDemand]: 33/35 looper letters, 17 selfloop transitions, 1 changer transitions 1/31 dead transitions. [2024-11-27 23:38:32,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 137 flow [2024-11-27 23:38:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:38:32,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:38:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2024-11-27 23:38:32,901 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2024-11-27 23:38:32,901 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 101 flow. Second operand 3 states and 57 transitions. [2024-11-27 23:38:32,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 137 flow [2024-11-27 23:38:32,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 31 transitions, 131 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-27 23:38:32,907 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 93 flow [2024-11-27 23:38:32,907 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2024-11-27 23:38:32,908 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2024-11-27 23:38:32,908 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 93 flow [2024-11-27 23:38:32,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:32,909 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:32,909 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:32,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:38:32,910 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:32,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:32,910 INFO L85 PathProgramCache]: Analyzing trace with hash 928935193, now seen corresponding path program 1 times [2024-11-27 23:38:32,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:32,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088248017] [2024-11-27 23:38:32,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:32,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:33,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:38:33,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:33,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088248017] [2024-11-27 23:38:33,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088248017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:33,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:33,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:38:33,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429377625] [2024-11-27 23:38:33,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:33,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:38:33,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:33,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:38:33,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:38:33,051 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-27 23:38:33,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 93 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:33,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:33,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-27 23:38:33,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:33,214 INFO L124 PetriNetUnfolderBase]: 263/503 cut-off events. [2024-11-27 23:38:33,214 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-27 23:38:33,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1048 conditions, 503 events. 263/503 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2626 event pairs, 33 based on Foata normal form. 4/467 useless extension candidates. Maximal degree in co-relation 1036. Up to 305 conditions per place. [2024-11-27 23:38:33,221 INFO L140 encePairwiseOnDemand]: 32/35 looper letters, 24 selfloop transitions, 3 changer transitions 0/39 dead transitions. [2024-11-27 23:38:33,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 39 transitions, 165 flow [2024-11-27 23:38:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:38:33,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:38:33,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2024-11-27 23:38:33,223 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5928571428571429 [2024-11-27 23:38:33,223 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 93 flow. Second operand 4 states and 83 transitions. [2024-11-27 23:38:33,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 39 transitions, 165 flow [2024-11-27 23:38:33,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 39 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:38:33,228 INFO L231 Difference]: Finished difference. Result has 45 places, 30 transitions, 102 flow [2024-11-27 23:38:33,228 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=102, PETRI_PLACES=45, PETRI_TRANSITIONS=30} [2024-11-27 23:38:33,229 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 5 predicate places. [2024-11-27 23:38:33,229 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 30 transitions, 102 flow [2024-11-27 23:38:33,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:33,231 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:33,231 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:33,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:38:33,231 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:33,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:33,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1261190750, now seen corresponding path program 1 times [2024-11-27 23:38:33,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:33,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768609961] [2024-11-27 23:38:33,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:33,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:38:33,253 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:38:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:38:33,275 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 23:38:33,275 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:38:33,275 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-11-27 23:38:33,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-27 23:38:33,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2024-11-27 23:38:33,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-27 23:38:33,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:38:33,276 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-27 23:38:33,277 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-27 23:38:33,277 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-27 23:38:33,328 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 23:38:33,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 43 transitions, 122 flow [2024-11-27 23:38:33,342 INFO L124 PetriNetUnfolderBase]: 12/88 cut-off events. [2024-11-27 23:38:33,343 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-27 23:38:33,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 88 events. 12/88 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 209 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 85. Up to 8 conditions per place. [2024-11-27 23:38:33,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 43 transitions, 122 flow [2024-11-27 23:38:33,345 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 41 transitions, 115 flow [2024-11-27 23:38:33,346 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:38:33,347 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;@522d535b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:38:33,347 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-27 23:38:33,350 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:38:33,350 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2024-11-27 23:38:33,350 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:38:33,350 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:33,350 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-27 23:38:33,351 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:33,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:33,351 INFO L85 PathProgramCache]: Analyzing trace with hash 578865840, now seen corresponding path program 1 times [2024-11-27 23:38:33,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:33,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366029253] [2024-11-27 23:38:33,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:33,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:33,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:33,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:33,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366029253] [2024-11-27 23:38:33,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366029253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:33,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:33,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:38:33,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632407369] [2024-11-27 23:38:33,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:33,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:38:33,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:33,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:38:33,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:38:33,415 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-27 23:38:33,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 115 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:33,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:33,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-27 23:38:33,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:33,937 INFO L124 PetriNetUnfolderBase]: 1803/3003 cut-off events. [2024-11-27 23:38:33,937 INFO L125 PetriNetUnfolderBase]: For 348/348 co-relation queries the response was YES. [2024-11-27 23:38:33,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5722 conditions, 3003 events. 1803/3003 cut-off events. For 348/348 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 18963 event pairs, 1385 based on Foata normal form. 168/2846 useless extension candidates. Maximal degree in co-relation 2516. Up to 2465 conditions per place. [2024-11-27 23:38:33,970 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 24 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2024-11-27 23:38:33,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 43 transitions, 171 flow [2024-11-27 23:38:33,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:38:33,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:38:33,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2024-11-27 23:38:33,972 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6434108527131783 [2024-11-27 23:38:33,972 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 115 flow. Second operand 3 states and 83 transitions. [2024-11-27 23:38:33,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 43 transitions, 171 flow [2024-11-27 23:38:33,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 43 transitions, 166 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-27 23:38:33,978 INFO L231 Difference]: Finished difference. Result has 53 places, 39 transitions, 116 flow [2024-11-27 23:38:33,979 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=53, PETRI_TRANSITIONS=39} [2024-11-27 23:38:33,979 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places. [2024-11-27 23:38:33,979 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 39 transitions, 116 flow [2024-11-27 23:38:33,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:33,980 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:33,980 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:33,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:38:33,980 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:33,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:33,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1274578534, now seen corresponding path program 1 times [2024-11-27 23:38:33,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:33,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668895416] [2024-11-27 23:38:33,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:33,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:34,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:34,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:34,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668895416] [2024-11-27 23:38:34,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668895416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:34,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:34,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:38:34,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870984705] [2024-11-27 23:38:34,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:34,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:38:34,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:34,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:38:34,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:38:34,078 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-27 23:38:34,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 39 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:34,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:34,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-27 23:38:34,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:34,575 INFO L124 PetriNetUnfolderBase]: 2031/3315 cut-off events. [2024-11-27 23:38:34,575 INFO L125 PetriNetUnfolderBase]: For 262/262 co-relation queries the response was YES. [2024-11-27 23:38:34,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6472 conditions, 3315 events. 2031/3315 cut-off events. For 262/262 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 21067 event pairs, 1719 based on Foata normal form. 0/3106 useless extension candidates. Maximal degree in co-relation 2848. Up to 2477 conditions per place. [2024-11-27 23:38:34,608 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 26 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2024-11-27 23:38:34,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 46 transitions, 188 flow [2024-11-27 23:38:34,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:38:34,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:38:34,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-11-27 23:38:34,610 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5872093023255814 [2024-11-27 23:38:34,610 INFO L175 Difference]: Start difference. First operand has 53 places, 39 transitions, 116 flow. Second operand 4 states and 101 transitions. [2024-11-27 23:38:34,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 46 transitions, 188 flow [2024-11-27 23:38:34,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 46 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:38:34,615 INFO L231 Difference]: Finished difference. Result has 56 places, 40 transitions, 128 flow [2024-11-27 23:38:34,615 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=56, PETRI_TRANSITIONS=40} [2024-11-27 23:38:34,615 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 4 predicate places. [2024-11-27 23:38:34,615 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 40 transitions, 128 flow [2024-11-27 23:38:34,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:34,616 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:34,616 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:34,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:38:34,616 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:34,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:34,616 INFO L85 PathProgramCache]: Analyzing trace with hash 856557612, now seen corresponding path program 1 times [2024-11-27 23:38:34,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:34,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045173429] [2024-11-27 23:38:34,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:34,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:34,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:38:34,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:34,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045173429] [2024-11-27 23:38:34,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045173429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:34,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:34,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 23:38:34,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236498596] [2024-11-27 23:38:34,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:34,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:38:34,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:34,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:38:34,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:38:34,680 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-11-27 23:38:34,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 40 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:34,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:34,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-11-27 23:38:34,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:35,060 INFO L124 PetriNetUnfolderBase]: 2031/3231 cut-off events. [2024-11-27 23:38:35,060 INFO L125 PetriNetUnfolderBase]: For 346/346 co-relation queries the response was YES. [2024-11-27 23:38:35,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6806 conditions, 3231 events. 2031/3231 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 19832 event pairs, 1947 based on Foata normal form. 84/3066 useless extension candidates. Maximal degree in co-relation 3014. Up to 2789 conditions per place. [2024-11-27 23:38:35,090 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 21 selfloop transitions, 1 changer transitions 1/39 dead transitions. [2024-11-27 23:38:35,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 39 transitions, 172 flow [2024-11-27 23:38:35,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:38:35,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:38:35,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-27 23:38:35,091 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5658914728682171 [2024-11-27 23:38:35,091 INFO L175 Difference]: Start difference. First operand has 56 places, 40 transitions, 128 flow. Second operand 3 states and 73 transitions. [2024-11-27 23:38:35,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 39 transitions, 172 flow [2024-11-27 23:38:35,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 39 transitions, 166 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-27 23:38:35,105 INFO L231 Difference]: Finished difference. Result has 55 places, 38 transitions, 120 flow [2024-11-27 23:38:35,105 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=55, PETRI_TRANSITIONS=38} [2024-11-27 23:38:35,106 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 3 predicate places. [2024-11-27 23:38:35,106 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 38 transitions, 120 flow [2024-11-27 23:38:35,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:35,109 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:35,109 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:35,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:38:35,109 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:35,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:35,110 INFO L85 PathProgramCache]: Analyzing trace with hash 856558188, now seen corresponding path program 1 times [2024-11-27 23:38:35,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:35,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709628336] [2024-11-27 23:38:35,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:35,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:35,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:38:35,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:35,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709628336] [2024-11-27 23:38:35,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709628336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:35,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:35,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:38:35,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147306532] [2024-11-27 23:38:35,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:35,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:38:35,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:35,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:38:35,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:38:35,192 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-27 23:38:35,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 38 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:35,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:35,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-27 23:38:35,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:35,547 INFO L124 PetriNetUnfolderBase]: 1783/2871 cut-off events. [2024-11-27 23:38:35,547 INFO L125 PetriNetUnfolderBase]: For 292/292 co-relation queries the response was YES. [2024-11-27 23:38:35,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5914 conditions, 2871 events. 1783/2871 cut-off events. For 292/292 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 17240 event pairs, 761 based on Foata normal form. 4/2674 useless extension candidates. Maximal degree in co-relation 5900. Up to 2337 conditions per place. [2024-11-27 23:38:35,570 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 30 selfloop transitions, 3 changer transitions 0/49 dead transitions. [2024-11-27 23:38:35,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 49 transitions, 210 flow [2024-11-27 23:38:35,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:38:35,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:38:35,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 105 transitions. [2024-11-27 23:38:35,572 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6104651162790697 [2024-11-27 23:38:35,572 INFO L175 Difference]: Start difference. First operand has 55 places, 38 transitions, 120 flow. Second operand 4 states and 105 transitions. [2024-11-27 23:38:35,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 49 transitions, 210 flow [2024-11-27 23:38:35,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 49 transitions, 209 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:38:35,579 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 135 flow [2024-11-27 23:38:35,579 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=135, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2024-11-27 23:38:35,579 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 5 predicate places. [2024-11-27 23:38:35,580 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 135 flow [2024-11-27 23:38:35,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:35,580 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:35,580 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:35,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:38:35,580 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:35,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:35,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1281770400, now seen corresponding path program 1 times [2024-11-27 23:38:35,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:35,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671577301] [2024-11-27 23:38:35,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:35,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:35,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:38:35,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:35,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671577301] [2024-11-27 23:38:35,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671577301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:35,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:35,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:38:35,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891758298] [2024-11-27 23:38:35,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:35,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:38:35,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:35,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:38:35,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:38:35,702 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-27 23:38:35,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 39 transitions, 135 flow. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 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) [2024-11-27 23:38:35,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:35,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-27 23:38:35,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:36,045 INFO L124 PetriNetUnfolderBase]: 1639/2615 cut-off events. [2024-11-27 23:38:36,046 INFO L125 PetriNetUnfolderBase]: For 590/590 co-relation queries the response was YES. [2024-11-27 23:38:36,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5552 conditions, 2615 events. 1639/2615 cut-off events. For 590/590 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 15063 event pairs, 241 based on Foata normal form. 16/2542 useless extension candidates. Maximal degree in co-relation 5536. Up to 1601 conditions per place. [2024-11-27 23:38:36,071 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 36 selfloop transitions, 4 changer transitions 0/56 dead transitions. [2024-11-27 23:38:36,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 56 transitions, 249 flow [2024-11-27 23:38:36,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:38:36,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 23:38:36,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2024-11-27 23:38:36,072 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6046511627906976 [2024-11-27 23:38:36,072 INFO L175 Difference]: Start difference. First operand has 57 places, 39 transitions, 135 flow. Second operand 5 states and 130 transitions. [2024-11-27 23:38:36,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 56 transitions, 249 flow [2024-11-27 23:38:36,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 56 transitions, 243 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-27 23:38:36,077 INFO L231 Difference]: Finished difference. Result has 60 places, 39 transitions, 141 flow [2024-11-27 23:38:36,077 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=141, PETRI_PLACES=60, PETRI_TRANSITIONS=39} [2024-11-27 23:38:36,078 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 8 predicate places. [2024-11-27 23:38:36,078 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 39 transitions, 141 flow [2024-11-27 23:38:36,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 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) [2024-11-27 23:38:36,079 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:36,079 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:36,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:38:36,080 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:36,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:36,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1316007870, now seen corresponding path program 1 times [2024-11-27 23:38:36,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:36,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840320731] [2024-11-27 23:38:36,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:36,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:38:36,096 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:38:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:38:36,118 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 23:38:36,118 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:38:36,118 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-11-27 23:38:36,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-27 23:38:36,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2024-11-27 23:38:36,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-27 23:38:36,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:38:36,119 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-27 23:38:36,120 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-27 23:38:36,120 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-27 23:38:36,162 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 23:38:36,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 51 transitions, 158 flow [2024-11-27 23:38:36,176 INFO L124 PetriNetUnfolderBase]: 15/112 cut-off events. [2024-11-27 23:38:36,176 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-27 23:38:36,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 112 events. 15/112 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 279 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 119. Up to 10 conditions per place. [2024-11-27 23:38:36,176 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 51 transitions, 158 flow [2024-11-27 23:38:36,177 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 49 transitions, 150 flow [2024-11-27 23:38:36,180 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:38:36,180 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;@522d535b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:38:36,180 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-27 23:38:36,183 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:38:36,183 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2024-11-27 23:38:36,183 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:38:36,183 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:36,183 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-27 23:38:36,184 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:36,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:36,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2087622096, now seen corresponding path program 1 times [2024-11-27 23:38:36,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:36,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285783328] [2024-11-27 23:38:36,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:36,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:36,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:36,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:36,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285783328] [2024-11-27 23:38:36,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285783328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:36,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:36,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:38:36,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303180083] [2024-11-27 23:38:36,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:36,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:38:36,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:36,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:38:36,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:38:36,230 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 51 [2024-11-27 23:38:36,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 49 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:36,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:36,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 51 [2024-11-27 23:38:36,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:37,919 INFO L124 PetriNetUnfolderBase]: 9931/14779 cut-off events. [2024-11-27 23:38:37,919 INFO L125 PetriNetUnfolderBase]: For 2844/2844 co-relation queries the response was YES. [2024-11-27 23:38:37,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28636 conditions, 14779 events. 9931/14779 cut-off events. For 2844/2844 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 98413 event pairs, 8233 based on Foata normal form. 680/14101 useless extension candidates. Maximal degree in co-relation 12948. Up to 12641 conditions per place. [2024-11-27 23:38:38,053 INFO L140 encePairwiseOnDemand]: 46/51 looper letters, 28 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2024-11-27 23:38:38,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 51 transitions, 214 flow [2024-11-27 23:38:38,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:38:38,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:38:38,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2024-11-27 23:38:38,055 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6470588235294118 [2024-11-27 23:38:38,055 INFO L175 Difference]: Start difference. First operand has 64 places, 49 transitions, 150 flow. Second operand 3 states and 99 transitions. [2024-11-27 23:38:38,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 51 transitions, 214 flow [2024-11-27 23:38:38,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 51 transitions, 201 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-27 23:38:38,067 INFO L231 Difference]: Finished difference. Result has 65 places, 47 transitions, 143 flow [2024-11-27 23:38:38,067 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=65, PETRI_TRANSITIONS=47} [2024-11-27 23:38:38,069 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places. [2024-11-27 23:38:38,070 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 47 transitions, 143 flow [2024-11-27 23:38:38,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:38,070 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:38,071 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:38,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:38:38,071 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:38,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:38,072 INFO L85 PathProgramCache]: Analyzing trace with hash 179814214, now seen corresponding path program 1 times [2024-11-27 23:38:38,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:38,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983048245] [2024-11-27 23:38:38,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:38,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:38,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:38,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:38,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983048245] [2024-11-27 23:38:38,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983048245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:38,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:38,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:38:38,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267608245] [2024-11-27 23:38:38,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:38,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:38:38,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:38,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:38:38,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:38:38,151 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 51 [2024-11-27 23:38:38,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 47 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:38,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:38,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 51 [2024-11-27 23:38:38,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:40,044 INFO L124 PetriNetUnfolderBase]: 11183/16371 cut-off events. [2024-11-27 23:38:40,044 INFO L125 PetriNetUnfolderBase]: For 1830/1830 co-relation queries the response was YES. [2024-11-27 23:38:40,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32074 conditions, 16371 events. 11183/16371 cut-off events. For 1830/1830 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 108401 event pairs, 9591 based on Foata normal form. 0/15521 useless extension candidates. Maximal degree in co-relation 14496. Up to 12653 conditions per place. [2024-11-27 23:38:40,195 INFO L140 encePairwiseOnDemand]: 47/51 looper letters, 32 selfloop transitions, 3 changer transitions 0/56 dead transitions. [2024-11-27 23:38:40,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 56 transitions, 231 flow [2024-11-27 23:38:40,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:38:40,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:38:40,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2024-11-27 23:38:40,196 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6029411764705882 [2024-11-27 23:38:40,196 INFO L175 Difference]: Start difference. First operand has 65 places, 47 transitions, 143 flow. Second operand 4 states and 123 transitions. [2024-11-27 23:38:40,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 56 transitions, 231 flow [2024-11-27 23:38:40,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 56 transitions, 229 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:38:40,202 INFO L231 Difference]: Finished difference. Result has 68 places, 48 transitions, 155 flow [2024-11-27 23:38:40,202 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=155, PETRI_PLACES=68, PETRI_TRANSITIONS=48} [2024-11-27 23:38:40,203 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 4 predicate places. [2024-11-27 23:38:40,203 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 48 transitions, 155 flow [2024-11-27 23:38:40,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:40,203 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:40,203 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:40,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:38:40,204 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:40,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:40,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1278602111, now seen corresponding path program 1 times [2024-11-27 23:38:40,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:40,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027824576] [2024-11-27 23:38:40,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:40,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:40,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:38:40,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:40,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027824576] [2024-11-27 23:38:40,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027824576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:40,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:40,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 23:38:40,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032803182] [2024-11-27 23:38:40,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:40,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:38:40,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:40,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:38:40,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:38:40,249 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 51 [2024-11-27 23:38:40,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 48 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:40,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:40,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 51 [2024-11-27 23:38:40,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:41,587 INFO L124 PetriNetUnfolderBase]: 11183/16031 cut-off events. [2024-11-27 23:38:41,587 INFO L125 PetriNetUnfolderBase]: For 2170/2170 co-relation queries the response was YES. [2024-11-27 23:38:41,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33432 conditions, 16031 events. 11183/16031 cut-off events. For 2170/2170 co-relation queries the response was YES. Maximal size of possible extension queue 740. Compared 102406 event pairs, 10843 based on Foata normal form. 340/15351 useless extension candidates. Maximal degree in co-relation 15174. Up to 14245 conditions per place. [2024-11-27 23:38:41,712 INFO L140 encePairwiseOnDemand]: 49/51 looper letters, 25 selfloop transitions, 1 changer transitions 1/47 dead transitions. [2024-11-27 23:38:41,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 47 transitions, 207 flow [2024-11-27 23:38:41,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:38:41,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:38:41,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-11-27 23:38:41,713 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5816993464052288 [2024-11-27 23:38:41,713 INFO L175 Difference]: Start difference. First operand has 68 places, 48 transitions, 155 flow. Second operand 3 states and 89 transitions. [2024-11-27 23:38:41,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 47 transitions, 207 flow [2024-11-27 23:38:42,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 47 transitions, 201 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-27 23:38:42,002 INFO L231 Difference]: Finished difference. Result has 67 places, 46 transitions, 147 flow [2024-11-27 23:38:42,002 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=67, PETRI_TRANSITIONS=46} [2024-11-27 23:38:42,003 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 3 predicate places. [2024-11-27 23:38:42,003 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 46 transitions, 147 flow [2024-11-27 23:38:42,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:42,003 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:42,003 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:42,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 23:38:42,004 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:42,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:42,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1278602687, now seen corresponding path program 1 times [2024-11-27 23:38:42,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:42,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497649434] [2024-11-27 23:38:42,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:42,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:38:42,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:42,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497649434] [2024-11-27 23:38:42,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497649434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:42,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:42,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:38:42,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75148846] [2024-11-27 23:38:42,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:42,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:38:42,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:42,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:38:42,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:38:42,068 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 51 [2024-11-27 23:38:42,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 46 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:42,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:42,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 51 [2024-11-27 23:38:42,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:43,033 INFO L124 PetriNetUnfolderBase]: 9911/14391 cut-off events. [2024-11-27 23:38:43,034 INFO L125 PetriNetUnfolderBase]: For 1830/1830 co-relation queries the response was YES. [2024-11-27 23:38:43,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29468 conditions, 14391 events. 9911/14391 cut-off events. For 1830/1830 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 91831 event pairs, 4223 based on Foata normal form. 4/13407 useless extension candidates. Maximal degree in co-relation 29452. Up to 12513 conditions per place. [2024-11-27 23:38:43,155 INFO L140 encePairwiseOnDemand]: 48/51 looper letters, 34 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2024-11-27 23:38:43,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 57 transitions, 245 flow [2024-11-27 23:38:43,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:38:43,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:38:43,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2024-11-27 23:38:43,156 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6127450980392157 [2024-11-27 23:38:43,156 INFO L175 Difference]: Start difference. First operand has 67 places, 46 transitions, 147 flow. Second operand 4 states and 125 transitions. [2024-11-27 23:38:43,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 57 transitions, 245 flow [2024-11-27 23:38:43,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 57 transitions, 244 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:38:43,193 INFO L231 Difference]: Finished difference. Result has 69 places, 47 transitions, 162 flow [2024-11-27 23:38:43,194 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=162, PETRI_PLACES=69, PETRI_TRANSITIONS=47} [2024-11-27 23:38:43,194 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 5 predicate places. [2024-11-27 23:38:43,194 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 47 transitions, 162 flow [2024-11-27 23:38:43,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:43,195 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:43,195 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:43,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 23:38:43,195 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:43,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:43,196 INFO L85 PathProgramCache]: Analyzing trace with hash -578403149, now seen corresponding path program 1 times [2024-11-27 23:38:43,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:43,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230958302] [2024-11-27 23:38:43,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:43,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:43,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:38:43,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:43,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230958302] [2024-11-27 23:38:43,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230958302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:43,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:43,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:38:43,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376061776] [2024-11-27 23:38:43,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:43,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:38:43,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:43,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:38:43,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:38:43,312 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 51 [2024-11-27 23:38:43,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 47 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:43,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:43,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 51 [2024-11-27 23:38:43,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:44,600 INFO L124 PetriNetUnfolderBase]: 9767/14135 cut-off events. [2024-11-27 23:38:44,600 INFO L125 PetriNetUnfolderBase]: For 2398/2398 co-relation queries the response was YES. [2024-11-27 23:38:44,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29618 conditions, 14135 events. 9767/14135 cut-off events. For 2398/2398 co-relation queries the response was YES. Maximal size of possible extension queue 656. Compared 89276 event pairs, 1863 based on Foata normal form. 16/13349 useless extension candidates. Maximal degree in co-relation 29600. Up to 11777 conditions per place. [2024-11-27 23:38:44,684 INFO L140 encePairwiseOnDemand]: 48/51 looper letters, 42 selfloop transitions, 4 changer transitions 0/66 dead transitions. [2024-11-27 23:38:44,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 66 transitions, 296 flow [2024-11-27 23:38:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:38:44,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 23:38:44,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2024-11-27 23:38:44,686 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.611764705882353 [2024-11-27 23:38:44,686 INFO L175 Difference]: Start difference. First operand has 69 places, 47 transitions, 162 flow. Second operand 5 states and 156 transitions. [2024-11-27 23:38:44,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 66 transitions, 296 flow [2024-11-27 23:38:44,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 66 transitions, 290 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-27 23:38:44,709 INFO L231 Difference]: Finished difference. Result has 72 places, 48 transitions, 176 flow [2024-11-27 23:38:44,709 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=72, PETRI_TRANSITIONS=48} [2024-11-27 23:38:44,710 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 8 predicate places. [2024-11-27 23:38:44,710 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 48 transitions, 176 flow [2024-11-27 23:38:44,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:44,710 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:44,710 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:44,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 23:38:44,710 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:44,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:44,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1535427645, now seen corresponding path program 1 times [2024-11-27 23:38:44,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:44,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832575792] [2024-11-27 23:38:44,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:44,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:44,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:38:44,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:44,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832575792] [2024-11-27 23:38:44,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832575792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:44,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:44,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:38:44,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739315308] [2024-11-27 23:38:44,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:44,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:38:44,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:44,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:38:44,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:38:44,849 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 51 [2024-11-27 23:38:44,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 48 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:44,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:44,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 51 [2024-11-27 23:38:44,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:46,131 INFO L124 PetriNetUnfolderBase]: 8935/12855 cut-off events. [2024-11-27 23:38:46,131 INFO L125 PetriNetUnfolderBase]: For 3190/3190 co-relation queries the response was YES. [2024-11-27 23:38:46,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27559 conditions, 12855 events. 8935/12855 cut-off events. For 3190/3190 co-relation queries the response was YES. Maximal size of possible extension queue 612. Compared 78991 event pairs, 601 based on Foata normal form. 64/12565 useless extension candidates. Maximal degree in co-relation 27540. Up to 6657 conditions per place. [2024-11-27 23:38:46,203 INFO L140 encePairwiseOnDemand]: 47/51 looper letters, 49 selfloop transitions, 6 changer transitions 0/75 dead transitions. [2024-11-27 23:38:46,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 75 transitions, 340 flow [2024-11-27 23:38:46,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:38:46,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:38:46,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 187 transitions. [2024-11-27 23:38:46,205 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-11-27 23:38:46,205 INFO L175 Difference]: Start difference. First operand has 72 places, 48 transitions, 176 flow. Second operand 6 states and 187 transitions. [2024-11-27 23:38:46,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 75 transitions, 340 flow [2024-11-27 23:38:46,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 75 transitions, 330 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-27 23:38:46,226 INFO L231 Difference]: Finished difference. Result has 76 places, 49 transitions, 190 flow [2024-11-27 23:38:46,226 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=190, PETRI_PLACES=76, PETRI_TRANSITIONS=49} [2024-11-27 23:38:46,227 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 12 predicate places. [2024-11-27 23:38:46,227 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 49 transitions, 190 flow [2024-11-27 23:38:46,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:46,227 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:46,227 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:46,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 23:38:46,227 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:46,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:46,228 INFO L85 PathProgramCache]: Analyzing trace with hash 818689676, now seen corresponding path program 1 times [2024-11-27 23:38:46,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:46,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668252511] [2024-11-27 23:38:46,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:46,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:46,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:46,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:46,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668252511] [2024-11-27 23:38:46,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668252511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:46,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:46,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:38:46,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356343635] [2024-11-27 23:38:46,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:46,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:38:46,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:46,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:38:46,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:38:46,374 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 51 [2024-11-27 23:38:46,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 49 transitions, 190 flow. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:46,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:46,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 51 [2024-11-27 23:38:46,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:47,657 INFO L124 PetriNetUnfolderBase]: 7911/11319 cut-off events. [2024-11-27 23:38:47,657 INFO L125 PetriNetUnfolderBase]: For 6014/6014 co-relation queries the response was YES. [2024-11-27 23:38:47,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25486 conditions, 11319 events. 7911/11319 cut-off events. For 6014/6014 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 66778 event pairs, 839 based on Foata normal form. 256/11091 useless extension candidates. Maximal degree in co-relation 25465. Up to 6656 conditions per place. [2024-11-27 23:38:47,770 INFO L140 encePairwiseOnDemand]: 48/51 looper letters, 49 selfloop transitions, 5 changer transitions 0/73 dead transitions. [2024-11-27 23:38:47,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 73 transitions, 344 flow [2024-11-27 23:38:47,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:38:47,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-27 23:38:47,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 208 transitions. [2024-11-27 23:38:47,772 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5826330532212886 [2024-11-27 23:38:47,772 INFO L175 Difference]: Start difference. First operand has 76 places, 49 transitions, 190 flow. Second operand 7 states and 208 transitions. [2024-11-27 23:38:47,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 73 transitions, 344 flow [2024-11-27 23:38:47,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 73 transitions, 329 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-27 23:38:47,794 INFO L231 Difference]: Finished difference. Result has 76 places, 47 transitions, 173 flow [2024-11-27 23:38:47,794 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=173, PETRI_PLACES=76, PETRI_TRANSITIONS=47} [2024-11-27 23:38:47,795 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 12 predicate places. [2024-11-27 23:38:47,795 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 47 transitions, 173 flow [2024-11-27 23:38:47,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:47,795 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:47,795 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:47,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 23:38:47,796 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:47,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:47,796 INFO L85 PathProgramCache]: Analyzing trace with hash -345700111, now seen corresponding path program 1 times [2024-11-27 23:38:47,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:47,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429796681] [2024-11-27 23:38:47,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:47,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:47,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:47,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:47,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429796681] [2024-11-27 23:38:47,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429796681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:47,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800605822] [2024-11-27 23:38:47,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:47,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:47,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:47,883 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:47,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:38:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:47,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:38:48,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:48,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:48,092 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:38:48,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:48,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800605822] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:38:48,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:38:48,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-27 23:38:48,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047238704] [2024-11-27 23:38:48,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:38:48,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:38:48,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:48,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:38:48,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:38:48,171 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 51 [2024-11-27 23:38:48,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 47 transitions, 173 flow. Second operand has 10 states, 10 states have (on average 25.4) internal successors, (254), 10 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:48,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:48,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 51 [2024-11-27 23:38:48,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:49,790 INFO L124 PetriNetUnfolderBase]: 10983/15159 cut-off events. [2024-11-27 23:38:49,790 INFO L125 PetriNetUnfolderBase]: For 3126/3126 co-relation queries the response was YES. [2024-11-27 23:38:49,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33229 conditions, 15159 events. 10983/15159 cut-off events. For 3126/3126 co-relation queries the response was YES. Maximal size of possible extension queue 631. Compared 88200 event pairs, 6631 based on Foata normal form. 0/14521 useless extension candidates. Maximal degree in co-relation 33209. Up to 8761 conditions per place. [2024-11-27 23:38:49,853 INFO L140 encePairwiseOnDemand]: 47/51 looper letters, 57 selfloop transitions, 6 changer transitions 0/82 dead transitions. [2024-11-27 23:38:49,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 82 transitions, 375 flow [2024-11-27 23:38:49,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:38:49,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-27 23:38:49,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 217 transitions. [2024-11-27 23:38:49,855 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6078431372549019 [2024-11-27 23:38:49,855 INFO L175 Difference]: Start difference. First operand has 76 places, 47 transitions, 173 flow. Second operand 7 states and 217 transitions. [2024-11-27 23:38:49,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 82 transitions, 375 flow [2024-11-27 23:38:49,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 82 transitions, 366 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-27 23:38:49,880 INFO L231 Difference]: Finished difference. Result has 80 places, 50 transitions, 202 flow [2024-11-27 23:38:49,880 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=202, PETRI_PLACES=80, PETRI_TRANSITIONS=50} [2024-11-27 23:38:49,880 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 16 predicate places. [2024-11-27 23:38:49,880 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 50 transitions, 202 flow [2024-11-27 23:38:49,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 25.4) internal successors, (254), 10 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:49,881 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:49,881 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:49,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:38:50,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-27 23:38:50,081 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:50,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:50,082 INFO L85 PathProgramCache]: Analyzing trace with hash -104118444, now seen corresponding path program 2 times [2024-11-27 23:38:50,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:50,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829445347] [2024-11-27 23:38:50,082 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:38:50,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:50,107 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:38:50,107 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:38:50,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [799356735] [2024-11-27 23:38:50,110 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:38:50,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:50,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:50,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:50,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:38:50,228 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:38:50,228 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:38:50,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:38:50,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:50,299 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 23:38:50,300 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:38:50,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:50,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829445347] [2024-11-27 23:38:50,301 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:38:50,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799356735] [2024-11-27 23:38:50,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799356735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:50,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:50,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:38:50,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405939818] [2024-11-27 23:38:50,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:50,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:38:50,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:50,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:38:50,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:38:50,339 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 51 [2024-11-27 23:38:50,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 50 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:50,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:50,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 51 [2024-11-27 23:38:50,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:58,236 INFO L124 PetriNetUnfolderBase]: 67668/86827 cut-off events. [2024-11-27 23:38:58,237 INFO L125 PetriNetUnfolderBase]: For 72958/72958 co-relation queries the response was YES. [2024-11-27 23:38:58,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204757 conditions, 86827 events. 67668/86827 cut-off events. For 72958/72958 co-relation queries the response was YES. Maximal size of possible extension queue 3401. Compared 501191 event pairs, 46574 based on Foata normal form. 1296/88080 useless extension candidates. Maximal degree in co-relation 204734. Up to 76367 conditions per place. [2024-11-27 23:38:58,820 INFO L140 encePairwiseOnDemand]: 44/51 looper letters, 57 selfloop transitions, 5 changer transitions 21/98 dead transitions. [2024-11-27 23:38:58,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 98 transitions, 557 flow [2024-11-27 23:38:58,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:38:58,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 23:38:58,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 161 transitions. [2024-11-27 23:38:58,821 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6313725490196078 [2024-11-27 23:38:58,821 INFO L175 Difference]: Start difference. First operand has 80 places, 50 transitions, 202 flow. Second operand 5 states and 161 transitions. [2024-11-27 23:38:58,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 98 transitions, 557 flow [2024-11-27 23:38:58,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 98 transitions, 528 flow, removed 12 selfloop flow, removed 2 redundant places. [2024-11-27 23:38:58,862 INFO L231 Difference]: Finished difference. Result has 85 places, 54 transitions, 232 flow [2024-11-27 23:38:58,862 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=232, PETRI_PLACES=85, PETRI_TRANSITIONS=54} [2024-11-27 23:38:58,862 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 21 predicate places. [2024-11-27 23:38:58,862 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 54 transitions, 232 flow [2024-11-27 23:38:58,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:58,862 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:58,863 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:58,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 23:38:59,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-27 23:38:59,066 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:38:59,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:59,067 INFO L85 PathProgramCache]: Analyzing trace with hash -880948171, now seen corresponding path program 1 times [2024-11-27 23:38:59,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:59,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707303989] [2024-11-27 23:38:59,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:59,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:38:59,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844057711] [2024-11-27 23:38:59,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:59,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:59,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:59,115 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:59,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:38:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:59,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 23:38:59,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:59,375 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 23:38:59,375 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:38:59,506 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 23:38:59,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:59,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707303989] [2024-11-27 23:38:59,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:38:59,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844057711] [2024-11-27 23:38:59,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844057711] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:59,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:38:59,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-27 23:38:59,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848805266] [2024-11-27 23:38:59,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:59,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:38:59,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:59,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:38:59,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:38:59,513 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 51 [2024-11-27 23:38:59,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 54 transitions, 232 flow. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:38:59,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:59,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 51 [2024-11-27 23:38:59,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:39:03,085 INFO L124 PetriNetUnfolderBase]: 27051/35681 cut-off events. [2024-11-27 23:39:03,086 INFO L125 PetriNetUnfolderBase]: For 37884/40496 co-relation queries the response was YES. [2024-11-27 23:39:03,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90372 conditions, 35681 events. 27051/35681 cut-off events. For 37884/40496 co-relation queries the response was YES. Maximal size of possible extension queue 2207. Compared 225935 event pairs, 11297 based on Foata normal form. 1512/32561 useless extension candidates. Maximal degree in co-relation 90352. Up to 17696 conditions per place. [2024-11-27 23:39:03,289 INFO L140 encePairwiseOnDemand]: 48/51 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2024-11-27 23:39:03,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 67 transitions, 346 flow [2024-11-27 23:39:03,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:39:03,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:39:03,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 128 transitions. [2024-11-27 23:39:03,290 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6274509803921569 [2024-11-27 23:39:03,291 INFO L175 Difference]: Start difference. First operand has 85 places, 54 transitions, 232 flow. Second operand 4 states and 128 transitions. [2024-11-27 23:39:03,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 67 transitions, 346 flow [2024-11-27 23:39:03,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 67 transitions, 333 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-27 23:39:03,677 INFO L231 Difference]: Finished difference. Result has 81 places, 0 transitions, 0 flow [2024-11-27 23:39:03,677 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=81, PETRI_TRANSITIONS=0} [2024-11-27 23:39:03,678 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 17 predicate places. [2024-11-27 23:39:03,678 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 0 transitions, 0 flow [2024-11-27 23:39:03,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:39:03,678 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-27 23:39:03,678 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-27 23:39:03,678 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-27 23:39:03,678 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-27 23:39:03,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:39:03,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:39:03,879 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:39:03,881 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2024-11-27 23:39:03,881 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:39:03,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:39:03 BasicIcfg [2024-11-27 23:39:03,899 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:39:03,899 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:39:03,899 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:39:03,900 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:39:03,901 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:38:31" (3/4) ... [2024-11-27 23:39:03,903 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 23:39:03,914 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-27 23:39:03,914 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-27 23:39:03,922 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 51 nodes and edges [2024-11-27 23:39:03,924 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-27 23:39:03,928 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-27 23:39:03,929 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-27 23:39:04,029 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:39:04,030 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 23:39:04,030 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:39:04,031 INFO L158 Benchmark]: Toolchain (without parser) took 34028.05ms. Allocated memory was 142.6MB in the beginning and 12.5GB in the end (delta: 12.3GB). Free memory was 117.0MB in the beginning and 10.3GB in the end (delta: -10.2GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2024-11-27 23:39:04,032 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:39:04,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.62ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 96.8MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:39:04,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.51ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 95.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:39:04,034 INFO L158 Benchmark]: Boogie Preprocessor took 43.93ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 93.7MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:39:04,034 INFO L158 Benchmark]: RCFGBuilder took 517.13ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 74.3MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:39:04,035 INFO L158 Benchmark]: TraceAbstraction took 32764.11ms. Allocated memory was 142.6MB in the beginning and 12.5GB in the end (delta: 12.3GB). Free memory was 73.5MB in the beginning and 10.3GB in the end (delta: -10.2GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2024-11-27 23:39:04,036 INFO L158 Benchmark]: Witness Printer took 130.58ms. Allocated memory is still 12.5GB. Free memory was 10.3GB in the beginning and 10.3GB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:39:04,038 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 520.62ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 96.8MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.51ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 95.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.93ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 93.7MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 517.13ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 74.3MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 32764.11ms. Allocated memory was 142.6MB in the beginning and 12.5GB in the end (delta: 12.3GB). Free memory was 73.5MB in the beginning and 10.3GB in the end (delta: -10.2GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. * Witness Printer took 130.58ms. Allocated memory is still 12.5GB. Free memory was 10.3GB in the beginning and 10.3GB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 763]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 752]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 34 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=1, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 121 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 9 procedures, 50 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 214 IncrementalHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1 mSDtfsCounter, 214 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=5, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 11 procedures, 58 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 27.7s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 25.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 284 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 263 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 885 IncrementalHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 14 mSDtfsCounter, 885 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=232occurred in iteration=9, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 281 NumberOfCodeBlocks, 277 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 265 ConstructedInterpolants, 0 QuantifiedInterpolants, 883 SizeOfPredicates, 9 NumberOfNonLiveVariables, 525 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 30/37 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-27 23:39:04,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41a422-4c94-4de0-b9a4-2f8729f6a0f3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE