./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c --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_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/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_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/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_9cd8ca46-1e30-439d-9fca-63578c117c33/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 df63a9317cd159d15f0c87211084d5e90c66afa781f3187352107d14a3f61024 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:50:41,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:50:41,460 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-27 19:50:41,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:50:41,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:50:41,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:50:41,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:50:41,504 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:50:41,504 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:50:41,505 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:50:41,505 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:50:41,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:50:41,506 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:50:41,506 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:50:41,506 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:50:41,506 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:50:41,506 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:50:41,506 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:50:41,507 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:50:41,507 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:50:41,507 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 19:50:41,507 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 19:50:41,507 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 19:50:41,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:50:41,507 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 19:50:41,507 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 19:50:41,507 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:50:41,507 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:50:41,507 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:50:41,507 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:50:41,507 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:41,507 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:41,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:41,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:41,508 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:50:41,508 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:41,508 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:41,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:41,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:41,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:50:41,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:50:41,508 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:50:41,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:50:41,508 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:50:41,508 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:50:41,508 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:50:41,508 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:50:41,509 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_9cd8ca46-1e30-439d-9fca-63578c117c33/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 -> df63a9317cd159d15f0c87211084d5e90c66afa781f3187352107d14a3f61024 [2024-11-27 19:50:41,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:50:41,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:50:41,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:50:41,866 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:50:41,866 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:50:41,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c [2024-11-27 19:50:44,988 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/data/8b2327e38/c1b6aed5e685406cac6f0295e8352d08/FLAG4acb8cc93 [2024-11-27 19:50:45,280 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:50:45,281 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c [2024-11-27 19:50:45,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/data/8b2327e38/c1b6aed5e685406cac6f0295e8352d08/FLAG4acb8cc93 [2024-11-27 19:50:45,590 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/data/8b2327e38/c1b6aed5e685406cac6f0295e8352d08 [2024-11-27 19:50:45,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:50:45,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:50:45,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:45,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:50:45,601 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:50:45,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:45" (1/1) ... [2024-11-27 19:50:45,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bbb01bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45, skipping insertion in model container [2024-11-27 19:50:45,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:45" (1/1) ... [2024-11-27 19:50:45,628 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:50:45,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:45,912 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:50:45,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:45,977 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:50:45,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45 WrapperNode [2024-11-27 19:50:45,979 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:45,980 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:45,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:50:45,980 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:50:45,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45" (1/1) ... [2024-11-27 19:50:45,996 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45" (1/1) ... [2024-11-27 19:50:46,024 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 97 [2024-11-27 19:50:46,025 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:46,026 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:50:46,026 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:50:46,026 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:50:46,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45" (1/1) ... [2024-11-27 19:50:46,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45" (1/1) ... [2024-11-27 19:50:46,037 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45" (1/1) ... [2024-11-27 19:50:46,055 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 19:50:46,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45" (1/1) ... [2024-11-27 19:50:46,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45" (1/1) ... [2024-11-27 19:50:46,064 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45" (1/1) ... [2024-11-27 19:50:46,066 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45" (1/1) ... [2024-11-27 19:50:46,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45" (1/1) ... [2024-11-27 19:50:46,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45" (1/1) ... [2024-11-27 19:50:46,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45" (1/1) ... [2024-11-27 19:50:46,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:50:46,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:50:46,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:50:46,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:50:46,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45" (1/1) ... [2024-11-27 19:50:46,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:46,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:46,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:50:46,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:50:46,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:50:46,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 19:50:46,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 19:50:46,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 19:50:46,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 19:50:46,155 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-27 19:50:46,155 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-27 19:50:46,155 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-27 19:50:46,155 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-27 19:50:46,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:50:46,155 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-27 19:50:46,155 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-27 19:50:46,155 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-27 19:50:46,155 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-27 19:50:46,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:50:46,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:50:46,157 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 19:50:46,250 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:50:46,252 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:50:46,534 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 19:50:46,534 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:50:46,755 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:50:46,756 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-27 19:50:46,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:46 BoogieIcfgContainer [2024-11-27 19:50:46,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:50:46,760 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:50:46,760 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:50:46,766 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:50:46,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:50:45" (1/3) ... [2024-11-27 19:50:46,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34445379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:46, skipping insertion in model container [2024-11-27 19:50:46,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:45" (2/3) ... [2024-11-27 19:50:46,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34445379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:46, skipping insertion in model container [2024-11-27 19:50:46,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:46" (3/3) ... [2024-11-27 19:50:46,770 INFO L128 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2024-11-27 19:50:46,787 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:50:46,789 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bench-exp3x3-opt.wvr.c that has 7 procedures, 43 locations, 1 initial locations, 6 loop locations, and 2 error locations. [2024-11-27 19:50:46,789 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 19:50:46,916 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-27 19:50:46,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 48 transitions, 138 flow [2024-11-27 19:50:47,000 INFO L124 PetriNetUnfolderBase]: 6/42 cut-off events. [2024-11-27 19:50:47,005 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-27 19:50:47,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 42 events. 6/42 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-11-27 19:50:47,014 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 48 transitions, 138 flow [2024-11-27 19:50:47,021 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 41 transitions, 118 flow [2024-11-27 19:50:47,031 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:50:47,048 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;@1bf1321c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:50:47,048 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-27 19:50:47,078 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 19:50:47,082 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2024-11-27 19:50:47,083 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-27 19:50:47,083 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:47,083 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:47,084 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-27 19:50:47,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:47,093 INFO L85 PathProgramCache]: Analyzing trace with hash -545614155, now seen corresponding path program 1 times [2024-11-27 19:50:47,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:47,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155878680] [2024-11-27 19:50:47,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:47,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:47,717 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 19:50:47,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:47,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155878680] [2024-11-27 19:50:47,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155878680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:47,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:47,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:50:47,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802963698] [2024-11-27 19:50:47,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:47,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:47,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:47,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:47,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:47,763 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-27 19:50:47,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 41 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 19:50:47,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:47,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-27 19:50:47,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:50,615 INFO L124 PetriNetUnfolderBase]: 21775/25313 cut-off events. [2024-11-27 19:50:50,616 INFO L125 PetriNetUnfolderBase]: For 1331/1331 co-relation queries the response was YES. [2024-11-27 19:50:50,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51763 conditions, 25313 events. 21775/25313 cut-off events. For 1331/1331 co-relation queries the response was YES. Maximal size of possible extension queue 886. Compared 88595 event pairs, 3993 based on Foata normal form. 2/13753 useless extension candidates. Maximal degree in co-relation 44769. Up to 16365 conditions per place. [2024-11-27 19:50:50,820 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 49 selfloop transitions, 3 changer transitions 1/60 dead transitions. [2024-11-27 19:50:50,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 283 flow [2024-11-27 19:50:50,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:50,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 19:50:50,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-11-27 19:50:50,885 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6736111111111112 [2024-11-27 19:50:50,888 INFO L175 Difference]: Start difference. First operand has 54 places, 41 transitions, 118 flow. Second operand 3 states and 97 transitions. [2024-11-27 19:50:50,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 283 flow [2024-11-27 19:50:50,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 60 transitions, 245 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-27 19:50:50,945 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 109 flow [2024-11-27 19:50:50,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2024-11-27 19:50:50,954 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -11 predicate places. [2024-11-27 19:50:50,954 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 109 flow [2024-11-27 19:50:50,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 19:50:50,955 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:50,956 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:50,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 19:50:50,956 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-27 19:50:50,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:50,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1455934557, now seen corresponding path program 1 times [2024-11-27 19:50:50,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:50,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004869562] [2024-11-27 19:50:50,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:50,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:51,263 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 19:50:51,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:51,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004869562] [2024-11-27 19:50:51,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004869562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:51,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:51,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:50:51,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959677658] [2024-11-27 19:50:51,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:51,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:51,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:51,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:51,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:51,268 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-27 19:50:51,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 19:50:51,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:51,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-27 19:50:51,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:53,876 INFO L124 PetriNetUnfolderBase]: 27277/31857 cut-off events. [2024-11-27 19:50:53,876 INFO L125 PetriNetUnfolderBase]: For 4136/4136 co-relation queries the response was YES. [2024-11-27 19:50:53,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69523 conditions, 31857 events. 27277/31857 cut-off events. For 4136/4136 co-relation queries the response was YES. Maximal size of possible extension queue 1136. Compared 118199 event pairs, 4193 based on Foata normal form. 1/21381 useless extension candidates. Maximal degree in co-relation 22978. Up to 23229 conditions per place. [2024-11-27 19:50:54,053 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 55 selfloop transitions, 3 changer transitions 3/68 dead transitions. [2024-11-27 19:50:54,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 68 transitions, 304 flow [2024-11-27 19:50:54,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:54,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 19:50:54,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-11-27 19:50:54,055 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2024-11-27 19:50:54,055 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 109 flow. Second operand 3 states and 100 transitions. [2024-11-27 19:50:54,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 68 transitions, 304 flow [2024-11-27 19:50:54,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 68 transitions, 299 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 19:50:54,061 INFO L231 Difference]: Finished difference. Result has 45 places, 43 transitions, 125 flow [2024-11-27 19:50:54,061 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=45, PETRI_TRANSITIONS=43} [2024-11-27 19:50:54,062 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -9 predicate places. [2024-11-27 19:50:54,062 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 43 transitions, 125 flow [2024-11-27 19:50:54,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 19:50:54,062 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:54,062 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:54,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:50:54,062 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-27 19:50:54,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:54,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1520982486, now seen corresponding path program 1 times [2024-11-27 19:50:54,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:54,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528360848] [2024-11-27 19:50:54,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:54,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:54,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:50:54,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:54,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528360848] [2024-11-27 19:50:54,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528360848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:54,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:54,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:50:54,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696271019] [2024-11-27 19:50:54,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:54,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:54,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:54,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:54,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:54,281 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-27 19:50:54,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 43 transitions, 125 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 19:50:54,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:54,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-27 19:50:54,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:56,808 INFO L124 PetriNetUnfolderBase]: 36121/42503 cut-off events. [2024-11-27 19:50:56,808 INFO L125 PetriNetUnfolderBase]: For 12442/12442 co-relation queries the response was YES. [2024-11-27 19:50:56,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100268 conditions, 42503 events. 36121/42503 cut-off events. For 12442/12442 co-relation queries the response was YES. Maximal size of possible extension queue 1537. Compared 170545 event pairs, 5994 based on Foata normal form. 1/35884 useless extension candidates. Maximal degree in co-relation 33662. Up to 30322 conditions per place. [2024-11-27 19:50:57,001 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 61 selfloop transitions, 3 changer transitions 5/76 dead transitions. [2024-11-27 19:50:57,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 76 transitions, 358 flow [2024-11-27 19:50:57,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:57,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 19:50:57,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-27 19:50:57,004 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-11-27 19:50:57,004 INFO L175 Difference]: Start difference. First operand has 45 places, 43 transitions, 125 flow. Second operand 3 states and 104 transitions. [2024-11-27 19:50:57,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 76 transitions, 358 flow [2024-11-27 19:50:57,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 76 transitions, 353 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 19:50:57,009 INFO L231 Difference]: Finished difference. Result has 47 places, 45 transitions, 141 flow [2024-11-27 19:50:57,010 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=47, PETRI_TRANSITIONS=45} [2024-11-27 19:50:57,011 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -7 predicate places. [2024-11-27 19:50:57,011 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 45 transitions, 141 flow [2024-11-27 19:50:57,012 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 19:50:57,012 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:57,012 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:57,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:50:57,012 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-27 19:50:57,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:57,013 INFO L85 PathProgramCache]: Analyzing trace with hash 771290550, now seen corresponding path program 1 times [2024-11-27 19:50:57,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:57,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896040118] [2024-11-27 19:50:57,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:57,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:57,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:50:57,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:57,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896040118] [2024-11-27 19:50:57,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896040118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:57,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:57,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:57,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098671551] [2024-11-27 19:50:57,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:57,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:50:57,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:57,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:50:57,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:50:57,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-27 19:50:57,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 45 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 19:50:57,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:57,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-27 19:50:57,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:59,688 INFO L124 PetriNetUnfolderBase]: 36155/42425 cut-off events. [2024-11-27 19:50:59,688 INFO L125 PetriNetUnfolderBase]: For 16785/16785 co-relation queries the response was YES. [2024-11-27 19:50:59,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105484 conditions, 42425 events. 36155/42425 cut-off events. For 16785/16785 co-relation queries the response was YES. Maximal size of possible extension queue 1521. Compared 166188 event pairs, 973 based on Foata normal form. 562/42859 useless extension candidates. Maximal degree in co-relation 35269. Up to 17349 conditions per place. [2024-11-27 19:50:59,869 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 102 selfloop transitions, 6 changer transitions 11/126 dead transitions. [2024-11-27 19:50:59,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 126 transitions, 615 flow [2024-11-27 19:50:59,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:50:59,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 19:50:59,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2024-11-27 19:50:59,875 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.725 [2024-11-27 19:50:59,875 INFO L175 Difference]: Start difference. First operand has 47 places, 45 transitions, 141 flow. Second operand 5 states and 174 transitions. [2024-11-27 19:50:59,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 126 transitions, 615 flow [2024-11-27 19:50:59,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 126 transitions, 611 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 19:50:59,881 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 162 flow [2024-11-27 19:50:59,883 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2024-11-27 19:50:59,884 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -3 predicate places. [2024-11-27 19:50:59,884 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 162 flow [2024-11-27 19:50:59,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 19:50:59,886 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:59,886 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:00,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 19:51:00,071 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-27 19:51:00,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:00,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1951046153, now seen corresponding path program 1 times [2024-11-27 19:51:00,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:00,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702679615] [2024-11-27 19:51:00,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:00,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:00,213 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:51:00,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:00,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702679615] [2024-11-27 19:51:00,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702679615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:00,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204491064] [2024-11-27 19:51:00,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:00,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:00,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:00,217 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:00,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:51:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:00,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:51:00,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:00,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:51:00,467 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:00,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:51:00,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204491064] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:00,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:00,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-27 19:51:00,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649622265] [2024-11-27 19:51:00,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:00,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:51:00,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:00,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:51:00,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:51:00,569 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-27 19:51:00,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:00,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:00,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-27 19:51:00,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:03,306 INFO L124 PetriNetUnfolderBase]: 36057/42843 cut-off events. [2024-11-27 19:51:03,307 INFO L125 PetriNetUnfolderBase]: For 25512/25512 co-relation queries the response was YES. [2024-11-27 19:51:03,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114986 conditions, 42843 events. 36057/42843 cut-off events. For 25512/25512 co-relation queries the response was YES. Maximal size of possible extension queue 1551. Compared 178038 event pairs, 4846 based on Foata normal form. 917/43254 useless extension candidates. Maximal degree in co-relation 39089. Up to 20874 conditions per place. [2024-11-27 19:51:03,447 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 108 selfloop transitions, 6 changer transitions 7/128 dead transitions. [2024-11-27 19:51:03,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 128 transitions, 693 flow [2024-11-27 19:51:03,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:51:03,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 19:51:03,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2024-11-27 19:51:03,450 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-27 19:51:03,450 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 162 flow. Second operand 5 states and 170 transitions. [2024-11-27 19:51:03,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 128 transitions, 693 flow [2024-11-27 19:51:03,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 128 transitions, 680 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 19:51:03,456 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 195 flow [2024-11-27 19:51:03,456 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=195, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2024-11-27 19:51:03,457 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2024-11-27 19:51:03,457 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 195 flow [2024-11-27 19:51:03,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:03,457 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:03,457 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:03,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:51:03,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:03,662 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-27 19:51:03,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:03,662 INFO L85 PathProgramCache]: Analyzing trace with hash -2047214296, now seen corresponding path program 1 times [2024-11-27 19:51:03,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:03,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889162992] [2024-11-27 19:51:03,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:03,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:03,774 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:51:03,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:03,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889162992] [2024-11-27 19:51:03,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889162992] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:03,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322799653] [2024-11-27 19:51:03,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:03,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:03,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:03,777 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:03,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:51:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:03,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:51:03,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:03,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:51:03,981 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:04,048 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:51:04,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322799653] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:04,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:04,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-27 19:51:04,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796237771] [2024-11-27 19:51:04,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:04,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:51:04,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:04,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:51:04,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:51:04,052 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-27 19:51:04,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 195 flow. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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 19:51:04,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:04,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-27 19:51:04,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:07,272 INFO L124 PetriNetUnfolderBase]: 40859/49047 cut-off events. [2024-11-27 19:51:07,273 INFO L125 PetriNetUnfolderBase]: For 50195/50195 co-relation queries the response was YES. [2024-11-27 19:51:07,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146843 conditions, 49047 events. 40859/49047 cut-off events. For 50195/50195 co-relation queries the response was YES. Maximal size of possible extension queue 1834. Compared 217484 event pairs, 5075 based on Foata normal form. 1141/49357 useless extension candidates. Maximal degree in co-relation 64565. Up to 24931 conditions per place. [2024-11-27 19:51:07,429 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 116 selfloop transitions, 6 changer transitions 14/143 dead transitions. [2024-11-27 19:51:07,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 143 transitions, 818 flow [2024-11-27 19:51:07,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:51:07,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 19:51:07,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 180 transitions. [2024-11-27 19:51:07,431 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-27 19:51:07,431 INFO L175 Difference]: Start difference. First operand has 56 places, 50 transitions, 195 flow. Second operand 5 states and 180 transitions. [2024-11-27 19:51:07,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 143 transitions, 818 flow [2024-11-27 19:51:07,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 143 transitions, 801 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-11-27 19:51:07,461 INFO L231 Difference]: Finished difference. Result has 61 places, 51 transitions, 219 flow [2024-11-27 19:51:07,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=219, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2024-11-27 19:51:07,462 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 7 predicate places. [2024-11-27 19:51:07,462 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 219 flow [2024-11-27 19:51:07,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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 19:51:07,462 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:07,462 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:07,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:51:07,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-27 19:51:07,667 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-27 19:51:07,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:07,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1604124661, now seen corresponding path program 1 times [2024-11-27 19:51:07,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:07,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467308323] [2024-11-27 19:51:07,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:07,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:07,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:51:07,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:07,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467308323] [2024-11-27 19:51:07,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467308323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:07,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:07,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:07,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196749191] [2024-11-27 19:51:07,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:07,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:07,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:07,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:07,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:07,778 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-27 19:51:07,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 19:51:07,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:07,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-27 19:51:07,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:10,073 INFO L124 PetriNetUnfolderBase]: 28133/33361 cut-off events. [2024-11-27 19:51:10,073 INFO L125 PetriNetUnfolderBase]: For 46086/46090 co-relation queries the response was YES. [2024-11-27 19:51:10,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110724 conditions, 33361 events. 28133/33361 cut-off events. For 46086/46090 co-relation queries the response was YES. Maximal size of possible extension queue 1208. Compared 131702 event pairs, 674 based on Foata normal form. 367/33624 useless extension candidates. Maximal degree in co-relation 56630. Up to 13091 conditions per place. [2024-11-27 19:51:10,227 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 89 selfloop transitions, 4 changer transitions 34/134 dead transitions. [2024-11-27 19:51:10,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 134 transitions, 841 flow [2024-11-27 19:51:10,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:51:10,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 19:51:10,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2024-11-27 19:51:10,229 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2024-11-27 19:51:10,229 INFO L175 Difference]: Start difference. First operand has 61 places, 51 transitions, 219 flow. Second operand 5 states and 166 transitions. [2024-11-27 19:51:10,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 134 transitions, 841 flow [2024-11-27 19:51:10,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 134 transitions, 812 flow, removed 10 selfloop flow, removed 1 redundant places. [2024-11-27 19:51:10,512 INFO L231 Difference]: Finished difference. Result has 64 places, 51 transitions, 221 flow [2024-11-27 19:51:10,512 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=64, PETRI_TRANSITIONS=51} [2024-11-27 19:51:10,513 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 10 predicate places. [2024-11-27 19:51:10,513 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 51 transitions, 221 flow [2024-11-27 19:51:10,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 19:51:10,513 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:10,513 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:10,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 19:51:10,514 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-27 19:51:10,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:10,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1974540011, now seen corresponding path program 2 times [2024-11-27 19:51:10,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:10,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484413900] [2024-11-27 19:51:10,515 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:51:10,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:10,548 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:51:10,549 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:10,663 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:51:10,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:10,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484413900] [2024-11-27 19:51:10,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484413900] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:10,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145500231] [2024-11-27 19:51:10,663 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:51:10,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:10,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:10,668 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:10,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 19:51:10,782 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:51:10,783 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:10,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:51:10,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:10,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:51:10,931 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:11,074 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:51:11,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145500231] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:11,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:11,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-27 19:51:11,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545100304] [2024-11-27 19:51:11,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:11,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:51:11,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:11,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:51:11,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:51:11,078 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-27 19:51:11,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 51 transitions, 221 flow. Second operand has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 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 19:51:11,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:11,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-27 19:51:11,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:13,440 INFO L124 PetriNetUnfolderBase]: 19916/23672 cut-off events. [2024-11-27 19:51:13,440 INFO L125 PetriNetUnfolderBase]: For 41076/41076 co-relation queries the response was YES. [2024-11-27 19:51:13,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83023 conditions, 23672 events. 19916/23672 cut-off events. For 41076/41076 co-relation queries the response was YES. Maximal size of possible extension queue 815. Compared 89245 event pairs, 257 based on Foata normal form. 1106/24739 useless extension candidates. Maximal degree in co-relation 46094. Up to 6957 conditions per place. [2024-11-27 19:51:13,824 INFO L140 encePairwiseOnDemand]: 38/48 looper letters, 290 selfloop transitions, 41 changer transitions 6/344 dead transitions. [2024-11-27 19:51:13,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 344 transitions, 2354 flow [2024-11-27 19:51:13,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 19:51:13,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-27 19:51:13,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 500 transitions. [2024-11-27 19:51:13,827 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6127450980392157 [2024-11-27 19:51:13,827 INFO L175 Difference]: Start difference. First operand has 64 places, 51 transitions, 221 flow. Second operand 17 states and 500 transitions. [2024-11-27 19:51:13,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 344 transitions, 2354 flow [2024-11-27 19:51:13,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 344 transitions, 2317 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-27 19:51:13,869 INFO L231 Difference]: Finished difference. Result has 90 places, 93 transitions, 619 flow [2024-11-27 19:51:13,869 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=619, PETRI_PLACES=90, PETRI_TRANSITIONS=93} [2024-11-27 19:51:13,869 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 36 predicate places. [2024-11-27 19:51:13,870 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 93 transitions, 619 flow [2024-11-27 19:51:13,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 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 19:51:13,870 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:13,870 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:13,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 19:51:14,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:14,074 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-27 19:51:14,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:14,074 INFO L85 PathProgramCache]: Analyzing trace with hash 707142714, now seen corresponding path program 1 times [2024-11-27 19:51:14,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:14,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426341139] [2024-11-27 19:51:14,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:14,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:14,217 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:51:14,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:14,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426341139] [2024-11-27 19:51:14,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426341139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:14,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:14,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:14,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412739420] [2024-11-27 19:51:14,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:14,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:14,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:14,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:14,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:14,218 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-27 19:51:14,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 93 transitions, 619 flow. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 19:51:14,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:14,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-27 19:51:14,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:16,000 INFO L124 PetriNetUnfolderBase]: 19713/23589 cut-off events. [2024-11-27 19:51:16,000 INFO L125 PetriNetUnfolderBase]: For 126819/126823 co-relation queries the response was YES. [2024-11-27 19:51:16,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112573 conditions, 23589 events. 19713/23589 cut-off events. For 126819/126823 co-relation queries the response was YES. Maximal size of possible extension queue 821. Compared 89479 event pairs, 998 based on Foata normal form. 204/23607 useless extension candidates. Maximal degree in co-relation 100071. Up to 9384 conditions per place. [2024-11-27 19:51:16,147 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 127 selfloop transitions, 10 changer transitions 54/198 dead transitions. [2024-11-27 19:51:16,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 198 transitions, 1761 flow [2024-11-27 19:51:16,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:51:16,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 19:51:16,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2024-11-27 19:51:16,149 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6583333333333333 [2024-11-27 19:51:16,149 INFO L175 Difference]: Start difference. First operand has 90 places, 93 transitions, 619 flow. Second operand 5 states and 158 transitions. [2024-11-27 19:51:16,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 198 transitions, 1761 flow [2024-11-27 19:51:16,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 198 transitions, 1675 flow, removed 28 selfloop flow, removed 2 redundant places. [2024-11-27 19:51:16,836 INFO L231 Difference]: Finished difference. Result has 93 places, 93 transitions, 600 flow [2024-11-27 19:51:16,836 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=600, PETRI_PLACES=93, PETRI_TRANSITIONS=93} [2024-11-27 19:51:16,837 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 39 predicate places. [2024-11-27 19:51:16,837 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 93 transitions, 600 flow [2024-11-27 19:51:16,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 19:51:16,837 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:16,837 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:16,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 19:51:16,837 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-27 19:51:16,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:16,838 INFO L85 PathProgramCache]: Analyzing trace with hash -927764346, now seen corresponding path program 2 times [2024-11-27 19:51:16,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:16,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022904077] [2024-11-27 19:51:16,838 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:51:16,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:16,858 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:51:16,859 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:16,956 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:51:16,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:16,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022904077] [2024-11-27 19:51:16,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022904077] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:16,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769961659] [2024-11-27 19:51:16,956 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:51:16,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:16,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:16,958 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:16,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 19:51:17,059 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:51:17,060 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:17,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:51:17,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:17,195 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:51:17,196 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:17,324 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:51:17,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769961659] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:17,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:17,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-27 19:51:17,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720063470] [2024-11-27 19:51:17,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:17,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:51:17,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:17,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:51:17,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:51:17,327 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-27 19:51:17,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 93 transitions, 600 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 19:51:17,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:17,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-27 19:51:17,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:18,800 INFO L124 PetriNetUnfolderBase]: 13483/16182 cut-off events. [2024-11-27 19:51:18,800 INFO L125 PetriNetUnfolderBase]: For 84871/84875 co-relation queries the response was YES. [2024-11-27 19:51:18,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76629 conditions, 16182 events. 13483/16182 cut-off events. For 84871/84875 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 58516 event pairs, 999 based on Foata normal form. 405/16482 useless extension candidates. Maximal degree in co-relation 67149. Up to 10707 conditions per place. [2024-11-27 19:51:18,938 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 155 selfloop transitions, 12 changer transitions 0/174 dead transitions. [2024-11-27 19:51:18,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 174 transitions, 1478 flow [2024-11-27 19:51:18,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:51:18,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 19:51:18,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 151 transitions. [2024-11-27 19:51:18,940 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6291666666666667 [2024-11-27 19:51:18,940 INFO L175 Difference]: Start difference. First operand has 93 places, 93 transitions, 600 flow. Second operand 5 states and 151 transitions. [2024-11-27 19:51:18,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 174 transitions, 1478 flow [2024-11-27 19:51:19,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 174 transitions, 1465 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-27 19:51:19,189 INFO L231 Difference]: Finished difference. Result has 97 places, 96 transitions, 655 flow [2024-11-27 19:51:19,189 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=587, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=655, PETRI_PLACES=97, PETRI_TRANSITIONS=96} [2024-11-27 19:51:19,190 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 43 predicate places. [2024-11-27 19:51:19,190 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 96 transitions, 655 flow [2024-11-27 19:51:19,190 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 19:51:19,190 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:19,190 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:19,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 19:51:19,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 19:51:19,391 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-27 19:51:19,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:19,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1581707934, now seen corresponding path program 1 times [2024-11-27 19:51:19,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:19,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055326248] [2024-11-27 19:51:19,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:19,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:19,524 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 19:51:19,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:19,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055326248] [2024-11-27 19:51:19,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055326248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:19,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543647894] [2024-11-27 19:51:19,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:19,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:19,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:19,527 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:19,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 19:51:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:19,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:51:19,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:19,737 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 19:51:19,737 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:19,838 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 19:51:19,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543647894] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:19,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:19,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-27 19:51:19,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055687161] [2024-11-27 19:51:19,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:19,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:51:19,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:19,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:51:19,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:51:19,842 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-27 19:51:19,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 96 transitions, 655 flow. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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 19:51:19,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:19,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-27 19:51:19,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:21,295 INFO L124 PetriNetUnfolderBase]: 12943/15536 cut-off events. [2024-11-27 19:51:21,296 INFO L125 PetriNetUnfolderBase]: For 112459/112469 co-relation queries the response was YES. [2024-11-27 19:51:21,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78123 conditions, 15536 events. 12943/15536 cut-off events. For 112459/112469 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 57364 event pairs, 352 based on Foata normal form. 542/16045 useless extension candidates. Maximal degree in co-relation 68466. Up to 11160 conditions per place. [2024-11-27 19:51:21,418 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 290 selfloop transitions, 6 changer transitions 0/303 dead transitions. [2024-11-27 19:51:21,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 303 transitions, 2876 flow [2024-11-27 19:51:21,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:51:21,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 19:51:21,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 157 transitions. [2024-11-27 19:51:21,420 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6541666666666667 [2024-11-27 19:51:21,420 INFO L175 Difference]: Start difference. First operand has 97 places, 96 transitions, 655 flow. Second operand 5 states and 157 transitions. [2024-11-27 19:51:21,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 303 transitions, 2876 flow [2024-11-27 19:51:21,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 303 transitions, 2803 flow, removed 20 selfloop flow, removed 1 redundant places. [2024-11-27 19:51:21,567 INFO L231 Difference]: Finished difference. Result has 102 places, 99 transitions, 677 flow [2024-11-27 19:51:21,567 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=677, PETRI_PLACES=102, PETRI_TRANSITIONS=99} [2024-11-27 19:51:21,568 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 48 predicate places. [2024-11-27 19:51:21,568 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 99 transitions, 677 flow [2024-11-27 19:51:21,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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 19:51:21,568 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:21,569 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:21,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 19:51:21,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 19:51:21,769 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-27 19:51:21,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:21,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1008106602, now seen corresponding path program 1 times [2024-11-27 19:51:21,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:21,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120748368] [2024-11-27 19:51:21,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:21,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:22,690 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:51:22,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:22,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120748368] [2024-11-27 19:51:22,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120748368] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:22,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615956493] [2024-11-27 19:51:22,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:22,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:22,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:22,693 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:22,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd8ca46-1e30-439d-9fca-63578c117c33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 19:51:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:23,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 19:51:23,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:24,386 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:51:24,386 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:25,384 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:51:25,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615956493] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:25,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:25,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2024-11-27 19:51:25,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575499898] [2024-11-27 19:51:25,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:25,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 19:51:25,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:25,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 19:51:25,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-11-27 19:51:25,387 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-27 19:51:25,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 99 transitions, 677 flow. Second operand has 18 states, 18 states have (on average 19.333333333333332) internal successors, (348), 18 states have internal predecessors, (348), 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 19:51:25,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:25,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-27 19:51:25,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand