./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/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_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/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_2c720974-082a-4389-abee-9a2891d60c7b/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 103efe8931e099ca6c2446ad32c4c46818a6d213fc850bc42032bda38d601e6f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:27:45,534 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:27:45,645 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 04:27:45,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:27:45,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:27:45,678 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:27:45,678 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:27:45,679 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:27:45,679 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:27:45,679 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:27:45,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:27:45,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:27:45,680 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:27:45,680 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:27:45,680 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:27:45,681 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:27:45,681 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:27:45,681 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:27:45,681 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:27:45,682 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:27:45,682 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:27:45,682 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:27:45,682 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:27:45,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:27:45,682 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:27:45,683 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:27:45,683 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:27:45,683 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:27:45,683 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:27:45,683 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:27:45,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:27:45,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:27:45,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:27:45,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:27:45,684 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:27:45,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:27:45,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:27:45,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:27:45,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:27:45,685 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:27:45,685 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:27:45,685 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:27:45,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:27:45,686 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:27:45,686 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:27:45,686 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:27:45,686 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:27:45,686 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_2c720974-082a-4389-abee-9a2891d60c7b/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 -> 103efe8931e099ca6c2446ad32c4c46818a6d213fc850bc42032bda38d601e6f [2024-11-28 04:27:46,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:27:46,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:27:46,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:27:46,043 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:27:46,044 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:27:46,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/parallel-misc-5.wvr.c [2024-11-28 04:27:49,295 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/data/0aa64f276/78d1f4d667604aeeb0f74408fef69b90/FLAG4fc0e5bc4 [2024-11-28 04:27:49,639 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:27:49,640 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/sv-benchmarks/c/weaver/parallel-misc-5.wvr.c [2024-11-28 04:27:49,651 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/data/0aa64f276/78d1f4d667604aeeb0f74408fef69b90/FLAG4fc0e5bc4 [2024-11-28 04:27:49,903 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/data/0aa64f276/78d1f4d667604aeeb0f74408fef69b90 [2024-11-28 04:27:49,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:27:49,909 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:27:49,910 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:27:49,911 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:27:49,916 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:27:49,917 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:27:49" (1/1) ... [2024-11-28 04:27:49,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d67ae78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:49, skipping insertion in model container [2024-11-28 04:27:49,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:27:49" (1/1) ... [2024-11-28 04:27:49,948 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:27:50,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:27:50,227 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:27:50,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:27:50,303 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:27:50,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:50 WrapperNode [2024-11-28 04:27:50,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:27:50,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:27:50,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:27:50,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:27:50,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:50" (1/1) ... [2024-11-28 04:27:50,334 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:50" (1/1) ... [2024-11-28 04:27:50,376 INFO L138 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 135 [2024-11-28 04:27:50,377 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:27:50,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:27:50,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:27:50,382 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:27:50,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:50" (1/1) ... [2024-11-28 04:27:50,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:50" (1/1) ... [2024-11-28 04:27:50,398 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:50" (1/1) ... [2024-11-28 04:27:50,436 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]. [2024-11-28 04:27:50,436 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:50" (1/1) ... [2024-11-28 04:27:50,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:50" (1/1) ... [2024-11-28 04:27:50,451 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:50" (1/1) ... [2024-11-28 04:27:50,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:50" (1/1) ... [2024-11-28 04:27:50,460 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:50" (1/1) ... [2024-11-28 04:27:50,462 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:50" (1/1) ... [2024-11-28 04:27:50,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:50" (1/1) ... [2024-11-28 04:27:50,468 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:27:50,469 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:27:50,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:27:50,471 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:27:50,473 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:50" (1/1) ... [2024-11-28 04:27:50,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:27:50,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:27:50,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:27:50,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:27:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:27:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 04:27:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 04:27:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 04:27:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 04:27:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-28 04:27:50,579 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-28 04:27:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:27:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 04:27:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 04:27:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:27:50,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:27:50,581 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:27:50,722 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:27:50,725 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:27:51,135 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:27:51,135 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:27:51,380 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:27:51,381 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:27:51,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:27:51 BoogieIcfgContainer [2024-11-28 04:27:51,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:27:51,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:27:51,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:27:51,394 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:27:51,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:27:49" (1/3) ... [2024-11-28 04:27:51,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eaee6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:27:51, skipping insertion in model container [2024-11-28 04:27:51,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:27:50" (2/3) ... [2024-11-28 04:27:51,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eaee6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:27:51, skipping insertion in model container [2024-11-28 04:27:51,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:27:51" (3/3) ... [2024-11-28 04:27:51,401 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-5.wvr.c [2024-11-28 04:27:51,423 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:27:51,425 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-5.wvr.c that has 4 procedures, 36 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-28 04:27:51,426 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:27:51,517 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-28 04:27:51,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 39 transitions, 99 flow [2024-11-28 04:27:51,628 INFO L124 PetriNetUnfolderBase]: 4/36 cut-off events. [2024-11-28 04:27:51,631 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 04:27:51,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 36 events. 4/36 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 69 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2024-11-28 04:27:51,636 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 39 transitions, 99 flow [2024-11-28 04:27:51,641 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 35 transitions, 88 flow [2024-11-28 04:27:51,651 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:27:51,668 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;@638dda82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:27:51,668 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-28 04:27:51,689 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:27:51,689 INFO L124 PetriNetUnfolderBase]: 4/32 cut-off events. [2024-11-28 04:27:51,689 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 04:27:51,689 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:27:51,690 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] [2024-11-28 04:27:51,691 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:27:51,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:27:51,699 INFO L85 PathProgramCache]: Analyzing trace with hash -721262372, now seen corresponding path program 1 times [2024-11-28 04:27:51,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:27:51,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425881339] [2024-11-28 04:27:51,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:27:51,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:27:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:27:52,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:27:52,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:27:52,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425881339] [2024-11-28 04:27:52,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425881339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:27:52,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:27:52,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:27:52,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870159812] [2024-11-28 04:27:52,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:27:52,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:27:52,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:27:52,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:27:52,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:27:52,766 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-11-28 04:27:52,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:52,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:27:52,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-11-28 04:27:52,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:27:53,764 INFO L124 PetriNetUnfolderBase]: 2009/2876 cut-off events. [2024-11-28 04:27:53,765 INFO L125 PetriNetUnfolderBase]: For 195/195 co-relation queries the response was YES. [2024-11-28 04:27:53,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5916 conditions, 2876 events. 2009/2876 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 13721 event pairs, 73 based on Foata normal form. 1/2342 useless extension candidates. Maximal degree in co-relation 5564. Up to 990 conditions per place. [2024-11-28 04:27:53,801 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 73 selfloop transitions, 8 changer transitions 6/94 dead transitions. [2024-11-28 04:27:53,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 94 transitions, 404 flow [2024-11-28 04:27:53,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:27:53,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:27:53,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions. [2024-11-28 04:27:53,823 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-28 04:27:53,827 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 88 flow. Second operand 6 states and 156 transitions. [2024-11-28 04:27:53,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 94 transitions, 404 flow [2024-11-28 04:27:53,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 94 transitions, 376 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-28 04:27:53,852 INFO L231 Difference]: Finished difference. Result has 41 places, 39 transitions, 122 flow [2024-11-28 04:27:53,855 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=122, PETRI_PLACES=41, PETRI_TRANSITIONS=39} [2024-11-28 04:27:53,860 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2024-11-28 04:27:53,863 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 39 transitions, 122 flow [2024-11-28 04:27:53,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:53,863 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:27:53,863 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] [2024-11-28 04:27:53,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:27:53,864 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:27:53,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:27:53,867 INFO L85 PathProgramCache]: Analyzing trace with hash -321428240, now seen corresponding path program 1 times [2024-11-28 04:27:53,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:27:53,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012655438] [2024-11-28 04:27:53,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:27:53,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:27:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:27:54,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:27:54,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:27:54,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012655438] [2024-11-28 04:27:54,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012655438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:27:54,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:27:54,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:27:54,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270371916] [2024-11-28 04:27:54,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:27:54,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:27:54,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:27:54,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:27:54,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:27:54,061 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-28 04:27:54,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:54,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:27:54,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-28 04:27:54,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:27:54,451 INFO L124 PetriNetUnfolderBase]: 1279/2023 cut-off events. [2024-11-28 04:27:54,452 INFO L125 PetriNetUnfolderBase]: For 614/661 co-relation queries the response was YES. [2024-11-28 04:27:54,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4481 conditions, 2023 events. 1279/2023 cut-off events. For 614/661 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 10379 event pairs, 423 based on Foata normal form. 88/1764 useless extension candidates. Maximal degree in co-relation 3193. Up to 1126 conditions per place. [2024-11-28 04:27:54,471 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 45 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2024-11-28 04:27:54,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 60 transitions, 273 flow [2024-11-28 04:27:54,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:27:54,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:27:54,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-11-28 04:27:54,474 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7350427350427351 [2024-11-28 04:27:54,474 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 122 flow. Second operand 3 states and 86 transitions. [2024-11-28 04:27:54,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 60 transitions, 273 flow [2024-11-28 04:27:54,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 60 transitions, 273 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:27:54,481 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 138 flow [2024-11-28 04:27:54,481 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2024-11-28 04:27:54,482 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 3 predicate places. [2024-11-28 04:27:54,482 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 138 flow [2024-11-28 04:27:54,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:54,483 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:27:54,483 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] [2024-11-28 04:27:54,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:27:54,484 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:27:54,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:27:54,485 INFO L85 PathProgramCache]: Analyzing trace with hash -92398972, now seen corresponding path program 1 times [2024-11-28 04:27:54,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:27:54,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213999827] [2024-11-28 04:27:54,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:27:54,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:27:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:27:54,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:27:54,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:27:54,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213999827] [2024-11-28 04:27:54,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213999827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:27:54,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:27:54,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:27:54,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693893915] [2024-11-28 04:27:54,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:27:54,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:27:54,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:27:54,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:27:54,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:27:54,684 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-28 04:27:54,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:54,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:27:54,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-28 04:27:54,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:27:55,162 INFO L124 PetriNetUnfolderBase]: 1740/2768 cut-off events. [2024-11-28 04:27:55,163 INFO L125 PetriNetUnfolderBase]: For 1030/1063 co-relation queries the response was YES. [2024-11-28 04:27:55,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6391 conditions, 2768 events. 1740/2768 cut-off events. For 1030/1063 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 14840 event pairs, 585 based on Foata normal form. 107/2338 useless extension candidates. Maximal degree in co-relation 4769. Up to 1579 conditions per place. [2024-11-28 04:27:55,183 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 44 selfloop transitions, 2 changer transitions 1/60 dead transitions. [2024-11-28 04:27:55,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 60 transitions, 297 flow [2024-11-28 04:27:55,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:27:55,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:27:55,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-11-28 04:27:55,186 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.717948717948718 [2024-11-28 04:27:55,186 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 138 flow. Second operand 3 states and 84 transitions. [2024-11-28 04:27:55,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 60 transitions, 297 flow [2024-11-28 04:27:55,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 60 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:27:55,194 INFO L231 Difference]: Finished difference. Result has 46 places, 41 transitions, 150 flow [2024-11-28 04:27:55,195 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=46, PETRI_TRANSITIONS=41} [2024-11-28 04:27:55,196 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 5 predicate places. [2024-11-28 04:27:55,197 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 150 flow [2024-11-28 04:27:55,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:55,197 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:27:55,198 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:27:55,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:27:55,198 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:27:55,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:27:55,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1502972824, now seen corresponding path program 1 times [2024-11-28 04:27:55,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:27:55,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471710764] [2024-11-28 04:27:55,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:27:55,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:27:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:27:55,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:27:55,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:27:55,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471710764] [2024-11-28 04:27:55,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471710764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:27:55,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:27:55,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:27:55,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728733286] [2024-11-28 04:27:55,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:27:55,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:27:55,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:27:55,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:27:55,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:27:55,522 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-11-28 04:27:55,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:55,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:27:55,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-11-28 04:27:55,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:27:56,252 INFO L124 PetriNetUnfolderBase]: 2875/4282 cut-off events. [2024-11-28 04:27:56,252 INFO L125 PetriNetUnfolderBase]: For 1942/1982 co-relation queries the response was YES. [2024-11-28 04:27:56,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10684 conditions, 4282 events. 2875/4282 cut-off events. For 1942/1982 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 20855 event pairs, 607 based on Foata normal form. 40/3732 useless extension candidates. Maximal degree in co-relation 9535. Up to 1697 conditions per place. [2024-11-28 04:27:56,333 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 70 selfloop transitions, 6 changer transitions 0/85 dead transitions. [2024-11-28 04:27:56,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 85 transitions, 452 flow [2024-11-28 04:27:56,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:27:56,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:27:56,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 121 transitions. [2024-11-28 04:27:56,337 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6205128205128205 [2024-11-28 04:27:56,338 INFO L175 Difference]: Start difference. First operand has 46 places, 41 transitions, 150 flow. Second operand 5 states and 121 transitions. [2024-11-28 04:27:56,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 85 transitions, 452 flow [2024-11-28 04:27:56,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 85 transitions, 447 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:27:56,345 INFO L231 Difference]: Finished difference. Result has 52 places, 44 transitions, 186 flow [2024-11-28 04:27:56,346 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=186, PETRI_PLACES=52, PETRI_TRANSITIONS=44} [2024-11-28 04:27:56,346 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 11 predicate places. [2024-11-28 04:27:56,347 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 44 transitions, 186 flow [2024-11-28 04:27:56,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:56,347 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:27:56,347 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:27:56,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:27:56,347 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:27:56,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:27:56,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1992436544, now seen corresponding path program 2 times [2024-11-28 04:27:56,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:27:56,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958532951] [2024-11-28 04:27:56,348 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:27:56,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:27:56,375 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:27:56,376 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:27:56,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:27:56,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:27:56,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958532951] [2024-11-28 04:27:56,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958532951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:27:56,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:27:56,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:27:56,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453448077] [2024-11-28 04:27:56,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:27:56,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:27:56,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:27:56,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:27:56,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:27:56,597 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-11-28 04:27:56,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 186 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:56,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:27:56,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-11-28 04:27:56,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:27:57,519 INFO L124 PetriNetUnfolderBase]: 4266/6311 cut-off events. [2024-11-28 04:27:57,519 INFO L125 PetriNetUnfolderBase]: For 4227/4291 co-relation queries the response was YES. [2024-11-28 04:27:57,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16133 conditions, 6311 events. 4266/6311 cut-off events. For 4227/4291 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 32795 event pairs, 880 based on Foata normal form. 182/5707 useless extension candidates. Maximal degree in co-relation 13724. Up to 2501 conditions per place. [2024-11-28 04:27:57,577 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 68 selfloop transitions, 7 changer transitions 0/84 dead transitions. [2024-11-28 04:27:57,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 84 transitions, 468 flow [2024-11-28 04:27:57,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:27:57,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:27:57,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2024-11-28 04:27:57,579 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6102564102564103 [2024-11-28 04:27:57,579 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 186 flow. Second operand 5 states and 119 transitions. [2024-11-28 04:27:57,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 84 transitions, 468 flow [2024-11-28 04:27:57,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 84 transitions, 465 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:27:57,594 INFO L231 Difference]: Finished difference. Result has 56 places, 45 transitions, 206 flow [2024-11-28 04:27:57,595 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=206, PETRI_PLACES=56, PETRI_TRANSITIONS=45} [2024-11-28 04:27:57,596 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 15 predicate places. [2024-11-28 04:27:57,598 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 206 flow [2024-11-28 04:27:57,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:57,599 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:27:57,599 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:27:57,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:27:57,599 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:27:57,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:27:57,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1366430920, now seen corresponding path program 3 times [2024-11-28 04:27:57,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:27:57,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102114579] [2024-11-28 04:27:57,604 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:27:57,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:27:57,634 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:27:57,634 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:27:58,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:27:58,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:27:58,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102114579] [2024-11-28 04:27:58,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102114579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:27:58,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:27:58,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:27:58,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069251863] [2024-11-28 04:27:58,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:27:58,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:27:58,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:27:58,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:27:58,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:27:58,143 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-11-28 04:27:58,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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) [2024-11-28 04:27:58,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:27:58,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-11-28 04:27:58,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:28:00,672 INFO L124 PetriNetUnfolderBase]: 12454/18321 cut-off events. [2024-11-28 04:28:00,672 INFO L125 PetriNetUnfolderBase]: For 15619/15687 co-relation queries the response was YES. [2024-11-28 04:28:00,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48191 conditions, 18321 events. 12454/18321 cut-off events. For 15619/15687 co-relation queries the response was YES. Maximal size of possible extension queue 883. Compared 114146 event pairs, 2369 based on Foata normal form. 372/16331 useless extension candidates. Maximal degree in co-relation 29754. Up to 5291 conditions per place. [2024-11-28 04:28:00,767 INFO L140 encePairwiseOnDemand]: 31/39 looper letters, 92 selfloop transitions, 23 changer transitions 24/149 dead transitions. [2024-11-28 04:28:00,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 149 transitions, 894 flow [2024-11-28 04:28:00,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:28:00,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 04:28:00,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 207 transitions. [2024-11-28 04:28:00,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6634615384615384 [2024-11-28 04:28:00,770 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 206 flow. Second operand 8 states and 207 transitions. [2024-11-28 04:28:00,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 149 transitions, 894 flow [2024-11-28 04:28:00,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 149 transitions, 875 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 04:28:00,787 INFO L231 Difference]: Finished difference. Result has 66 places, 62 transitions, 413 flow [2024-11-28 04:28:00,787 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=413, PETRI_PLACES=66, PETRI_TRANSITIONS=62} [2024-11-28 04:28:00,790 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 25 predicate places. [2024-11-28 04:28:00,792 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 62 transitions, 413 flow [2024-11-28 04:28:00,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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) [2024-11-28 04:28:00,792 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:28:00,792 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:00,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:28:00,793 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:28:00,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:00,795 INFO L85 PathProgramCache]: Analyzing trace with hash 820418090, now seen corresponding path program 4 times [2024-11-28 04:28:00,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:00,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458856777] [2024-11-28 04:28:00,795 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:28:00,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:00,825 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:28:00,826 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:28:00,953 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:28:00,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:00,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458856777] [2024-11-28 04:28:00,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458856777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:00,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179265501] [2024-11-28 04:28:00,957 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:28:00,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:00,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:00,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:01,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:28:01,227 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:28:01,227 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:28:01,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:28:01,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:01,375 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:01,375 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:28:01,458 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:28:01,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179265501] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:28:01,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:28:01,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 3] total 4 [2024-11-28 04:28:01,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801244092] [2024-11-28 04:28:01,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:28:01,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:28:01,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:01,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:28:01,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:28:01,464 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-28 04:28:01,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 413 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:01,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:28:01,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-28 04:28:01,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:28:03,139 INFO L124 PetriNetUnfolderBase]: 7586/11719 cut-off events. [2024-11-28 04:28:03,140 INFO L125 PetriNetUnfolderBase]: For 22136/22300 co-relation queries the response was YES. [2024-11-28 04:28:03,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34929 conditions, 11719 events. 7586/11719 cut-off events. For 22136/22300 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 70956 event pairs, 3261 based on Foata normal form. 226/10187 useless extension candidates. Maximal degree in co-relation 31926. Up to 4355 conditions per place. [2024-11-28 04:28:03,230 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 90 selfloop transitions, 12 changer transitions 0/121 dead transitions. [2024-11-28 04:28:03,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 121 transitions, 958 flow [2024-11-28 04:28:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:03,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:28:03,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 121 transitions. [2024-11-28 04:28:03,232 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7756410256410257 [2024-11-28 04:28:03,232 INFO L175 Difference]: Start difference. First operand has 66 places, 62 transitions, 413 flow. Second operand 4 states and 121 transitions. [2024-11-28 04:28:03,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 121 transitions, 958 flow [2024-11-28 04:28:03,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 121 transitions, 920 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-28 04:28:03,269 INFO L231 Difference]: Finished difference. Result has 66 places, 71 transitions, 533 flow [2024-11-28 04:28:03,269 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=533, PETRI_PLACES=66, PETRI_TRANSITIONS=71} [2024-11-28 04:28:03,270 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 25 predicate places. [2024-11-28 04:28:03,270 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 71 transitions, 533 flow [2024-11-28 04:28:03,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:03,270 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:28:03,270 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:03,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:28:03,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:03,476 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:28:03,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:03,477 INFO L85 PathProgramCache]: Analyzing trace with hash -703085198, now seen corresponding path program 1 times [2024-11-28 04:28:03,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:03,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565493252] [2024-11-28 04:28:03,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:03,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:03,637 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:28:03,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:03,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565493252] [2024-11-28 04:28:03,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565493252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:03,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020663911] [2024-11-28 04:28:03,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:03,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:03,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:03,642 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:03,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:28:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:03,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:28:03,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:03,950 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:03,951 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:28:04,021 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:28:04,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020663911] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:28:04,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:28:04,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 3] total 4 [2024-11-28 04:28:04,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894351304] [2024-11-28 04:28:04,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:28:04,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:28:04,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:04,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:28:04,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:28:04,023 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-28 04:28:04,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 71 transitions, 533 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:04,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:28:04,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-28 04:28:04,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:28:06,472 INFO L124 PetriNetUnfolderBase]: 15822/24436 cut-off events. [2024-11-28 04:28:06,472 INFO L125 PetriNetUnfolderBase]: For 55157/55472 co-relation queries the response was YES. [2024-11-28 04:28:06,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75575 conditions, 24436 events. 15822/24436 cut-off events. For 55157/55472 co-relation queries the response was YES. Maximal size of possible extension queue 955. Compared 166990 event pairs, 6411 based on Foata normal form. 508/21315 useless extension candidates. Maximal degree in co-relation 68097. Up to 8609 conditions per place. [2024-11-28 04:28:06,610 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 106 selfloop transitions, 16 changer transitions 0/141 dead transitions. [2024-11-28 04:28:06,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 141 transitions, 1343 flow [2024-11-28 04:28:06,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:06,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:28:06,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2024-11-28 04:28:06,612 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-28 04:28:06,612 INFO L175 Difference]: Start difference. First operand has 66 places, 71 transitions, 533 flow. Second operand 4 states and 117 transitions. [2024-11-28 04:28:06,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 141 transitions, 1343 flow [2024-11-28 04:28:06,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 141 transitions, 1309 flow, removed 17 selfloop flow, removed 0 redundant places. [2024-11-28 04:28:06,636 INFO L231 Difference]: Finished difference. Result has 71 places, 83 transitions, 716 flow [2024-11-28 04:28:06,637 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=716, PETRI_PLACES=71, PETRI_TRANSITIONS=83} [2024-11-28 04:28:06,640 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 30 predicate places. [2024-11-28 04:28:06,640 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 83 transitions, 716 flow [2024-11-28 04:28:06,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:06,640 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:28:06,640 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:06,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:28:06,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:06,841 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:28:06,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:06,842 INFO L85 PathProgramCache]: Analyzing trace with hash -426499482, now seen corresponding path program 5 times [2024-11-28 04:28:06,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:06,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220702196] [2024-11-28 04:28:06,842 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:28:06,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:06,889 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:28:06,889 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:28:07,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:07,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:07,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220702196] [2024-11-28 04:28:07,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220702196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:07,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744059664] [2024-11-28 04:28:07,373 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:28:07,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:07,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:07,377 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:07,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:28:07,477 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:28:07,477 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:28:07,479 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:28:07,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:07,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:07,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:28:08,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:08,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744059664] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:28:08,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:28:08,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 8] total 16 [2024-11-28 04:28:08,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668685163] [2024-11-28 04:28:08,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:28:08,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:28:08,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:08,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:28:08,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:28:08,114 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 39 [2024-11-28 04:28:08,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 83 transitions, 716 flow. Second operand has 17 states, 17 states have (on average 12.647058823529411) internal successors, (215), 17 states have internal predecessors, (215), 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) [2024-11-28 04:28:08,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:28:08,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 39 [2024-11-28 04:28:08,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:28:19,464 INFO L124 PetriNetUnfolderBase]: 63960/92772 cut-off events. [2024-11-28 04:28:19,465 INFO L125 PetriNetUnfolderBase]: For 244703/244703 co-relation queries the response was YES. [2024-11-28 04:28:19,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302092 conditions, 92772 events. 63960/92772 cut-off events. For 244703/244703 co-relation queries the response was YES. Maximal size of possible extension queue 2506. Compared 637004 event pairs, 6707 based on Foata normal form. 2496/84507 useless extension candidates. Maximal degree in co-relation 128557. Up to 18086 conditions per place. [2024-11-28 04:28:19,828 INFO L140 encePairwiseOnDemand]: 25/39 looper letters, 439 selfloop transitions, 229 changer transitions 61/734 dead transitions. [2024-11-28 04:28:19,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 734 transitions, 6300 flow [2024-11-28 04:28:19,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-28 04:28:19,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2024-11-28 04:28:19,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 852 transitions. [2024-11-28 04:28:19,834 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5748987854251012 [2024-11-28 04:28:19,834 INFO L175 Difference]: Start difference. First operand has 71 places, 83 transitions, 716 flow. Second operand 38 states and 852 transitions. [2024-11-28 04:28:19,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 734 transitions, 6300 flow [2024-11-28 04:28:19,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 734 transitions, 6164 flow, removed 68 selfloop flow, removed 0 redundant places. [2024-11-28 04:28:19,935 INFO L231 Difference]: Finished difference. Result has 139 places, 281 transitions, 3807 flow [2024-11-28 04:28:19,935 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=3807, PETRI_PLACES=139, PETRI_TRANSITIONS=281} [2024-11-28 04:28:19,937 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 98 predicate places. [2024-11-28 04:28:19,937 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 281 transitions, 3807 flow [2024-11-28 04:28:19,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 12.647058823529411) internal successors, (215), 17 states have internal predecessors, (215), 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) [2024-11-28 04:28:19,938 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:28:19,938 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:19,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:28:20,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-28 04:28:20,139 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:28:20,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:20,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1571275460, now seen corresponding path program 6 times [2024-11-28 04:28:20,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:20,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257512500] [2024-11-28 04:28:20,140 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:28:20,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:20,177 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-11-28 04:28:20,177 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:28:20,320 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 04:28:20,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:20,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257512500] [2024-11-28 04:28:20,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257512500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:20,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043053650] [2024-11-28 04:28:20,321 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:28:20,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:20,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:20,324 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:20,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:28:20,435 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-11-28 04:28:20,435 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:28:20,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:28:20,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:20,509 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:28:20,509 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:28:20,585 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 04:28:20,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043053650] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:28:20,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:28:20,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 5 [2024-11-28 04:28:20,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486574700] [2024-11-28 04:28:20,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:28:20,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:28:20,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:20,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:28:20,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:28:20,590 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-28 04:28:20,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 281 transitions, 3807 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-11-28 04:28:20,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:28:20,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-28 04:28:20,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:28:36,891 INFO L124 PetriNetUnfolderBase]: 58203/90710 cut-off events. [2024-11-28 04:28:36,891 INFO L125 PetriNetUnfolderBase]: For 1306901/1308879 co-relation queries the response was YES. [2024-11-28 04:28:37,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468869 conditions, 90710 events. 58203/90710 cut-off events. For 1306901/1308879 co-relation queries the response was YES. Maximal size of possible extension queue 2266. Compared 703365 event pairs, 19260 based on Foata normal form. 1456/80407 useless extension candidates. Maximal degree in co-relation 441312. Up to 23516 conditions per place. [2024-11-28 04:28:37,821 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 434 selfloop transitions, 144 changer transitions 0/629 dead transitions. [2024-11-28 04:28:37,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 629 transitions, 9650 flow [2024-11-28 04:28:37,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:28:37,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:28:37,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2024-11-28 04:28:37,823 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8 [2024-11-28 04:28:37,823 INFO L175 Difference]: Start difference. First operand has 139 places, 281 transitions, 3807 flow. Second operand 5 states and 156 transitions. [2024-11-28 04:28:37,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 629 transitions, 9650 flow [2024-11-28 04:28:47,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 629 transitions, 8527 flow, removed 545 selfloop flow, removed 3 redundant places. [2024-11-28 04:28:47,397 INFO L231 Difference]: Finished difference. Result has 143 places, 362 transitions, 5161 flow [2024-11-28 04:28:47,397 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=3332, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=5161, PETRI_PLACES=143, PETRI_TRANSITIONS=362} [2024-11-28 04:28:47,398 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 102 predicate places. [2024-11-28 04:28:47,398 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 362 transitions, 5161 flow [2024-11-28 04:28:47,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-11-28 04:28:47,398 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:28:47,398 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:47,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:28:47,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 04:28:47,599 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:28:47,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:47,599 INFO L85 PathProgramCache]: Analyzing trace with hash -94048136, now seen corresponding path program 2 times [2024-11-28 04:28:47,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:47,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193815725] [2024-11-28 04:28:47,600 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:28:47,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:47,629 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:28:47,629 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:28:47,764 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:28:47,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:47,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193815725] [2024-11-28 04:28:47,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193815725] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:47,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129339010] [2024-11-28 04:28:47,765 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:28:47,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:47,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:47,768 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:47,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c720974-082a-4389-abee-9a2891d60c7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:28:47,858 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:28:47,859 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:28:47,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:28:47,862 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:28:47,933 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:28:48,006 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:28:48,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129339010] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:28:48,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:28:48,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 5 [2024-11-28 04:28:48,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608304145] [2024-11-28 04:28:48,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:28:48,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:28:48,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:48,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:28:48,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:28:48,008 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-11-28 04:28:48,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 362 transitions, 5161 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-11-28 04:28:48,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:28:48,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-11-28 04:28:48,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand