./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:14:00,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:14:00,597 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 21:14:00,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:14:00,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:14:00,638 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:14:00,639 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:14:00,639 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:14:00,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:14:00,641 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:14:00,641 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:14:00,642 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:14:00,642 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:14:00,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:14:00,648 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:14:00,649 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:14:00,650 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:14:00,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:14:00,655 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:14:00,655 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:14:00,657 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:14:00,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:14:00,658 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:14:00,658 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:14:00,659 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:14:00,659 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:14:00,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:14:00,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:14:00,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:14:00,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:14:00,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:14:00,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:14:00,663 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:14:00,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:14:00,664 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:14:00,664 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:14:00,664 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:14:00,664 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:14:00,665 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 [2023-11-06 21:14:01,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:14:01,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:14:01,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:14:01,076 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:14:01,077 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:14:01,078 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2023-11-06 21:14:04,144 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:14:04,530 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:14:04,530 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2023-11-06 21:14:04,558 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/bin/uautomizer-verify-WvqO1wxjHP/data/e685276ce/bc5f7e6b7cef4ab8a7311006caee21f6/FLAG2edcbc60f [2023-11-06 21:14:04,585 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/bin/uautomizer-verify-WvqO1wxjHP/data/e685276ce/bc5f7e6b7cef4ab8a7311006caee21f6 [2023-11-06 21:14:04,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:14:04,590 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:14:04,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:14:04,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:14:04,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:14:04,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:14:04" (1/1) ... [2023-11-06 21:14:04,602 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c79802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:04, skipping insertion in model container [2023-11-06 21:14:04,603 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:14:04" (1/1) ... [2023-11-06 21:14:04,674 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:14:05,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:14:05,407 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:14:05,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:14:05,613 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:14:05,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:05 WrapperNode [2023-11-06 21:14:05,614 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:14:05,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:14:05,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:14:05,616 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:14:05,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:05" (1/1) ... [2023-11-06 21:14:05,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:05" (1/1) ... [2023-11-06 21:14:05,675 INFO L138 Inliner]: procedures = 368, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 85 [2023-11-06 21:14:05,675 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:14:05,676 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:14:05,676 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:14:05,677 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:14:05,686 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:05" (1/1) ... [2023-11-06 21:14:05,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:05" (1/1) ... [2023-11-06 21:14:05,693 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:05" (1/1) ... [2023-11-06 21:14:05,693 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:05" (1/1) ... [2023-11-06 21:14:05,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:05" (1/1) ... [2023-11-06 21:14:05,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:05" (1/1) ... [2023-11-06 21:14:05,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:05" (1/1) ... [2023-11-06 21:14:05,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:05" (1/1) ... [2023-11-06 21:14:05,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:14:05,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:14:05,719 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:14:05,719 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:14:05,720 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:05" (1/1) ... [2023-11-06 21:14:05,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:14:05,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:05,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:14:05,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_535bb3f9-7a16-4aaa-8a46-007389f1d2c2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:14:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:14:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 21:14:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:14:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:14:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:14:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 21:14:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:14:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:14:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 21:14:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 21:14:05,858 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 21:14:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:14:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:14:05,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:14:05,860 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:14:06,044 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:14:06,045 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:14:06,487 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:14:06,497 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:14:06,498 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:14:06,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:14:06 BoogieIcfgContainer [2023-11-06 21:14:06,500 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:14:06,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:14:06,503 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:14:06,506 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:14:06,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:14:04" (1/3) ... [2023-11-06 21:14:06,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74865e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:14:06, skipping insertion in model container [2023-11-06 21:14:06,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:05" (2/3) ... [2023-11-06 21:14:06,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74865e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:14:06, skipping insertion in model container [2023-11-06 21:14:06,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:14:06" (3/3) ... [2023-11-06 21:14:06,510 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_04-list2_nr.i [2023-11-06 21:14:06,530 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:14:06,530 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 43 error locations. [2023-11-06 21:14:06,530 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:14:06,601 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 21:14:06,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 171 places, 167 transitions, 338 flow [2023-11-06 21:14:06,714 INFO L124 PetriNetUnfolderBase]: 0/166 cut-off events. [2023-11-06 21:14:06,715 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:14:06,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 166 events. 0/166 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 222 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 21:14:06,719 INFO L82 GeneralOperation]: Start removeDead. Operand has 171 places, 167 transitions, 338 flow [2023-11-06 21:14:06,726 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 166 transitions, 335 flow [2023-11-06 21:14:06,730 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:14:06,741 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 170 places, 166 transitions, 335 flow [2023-11-06 21:14:06,751 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 170 places, 166 transitions, 335 flow [2023-11-06 21:14:06,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 166 transitions, 335 flow [2023-11-06 21:14:06,807 INFO L124 PetriNetUnfolderBase]: 0/166 cut-off events. [2023-11-06 21:14:06,807 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:14:06,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 166 events. 0/166 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 221 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 21:14:06,811 INFO L119 LiptonReduction]: Number of co-enabled transitions 2590 [2023-11-06 21:14:34,886 WARN L293 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 188 DAG size of output: 176 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 21:14:47,743 WARN L293 SmtUtils]: Spent 9.94s on a formula simplification. DAG size of input: 188 DAG size of output: 179 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 21:15:12,066 WARN L293 SmtUtils]: Spent 18.97s on a formula simplification. DAG size of input: 219 DAG size of output: 207 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 21:15:35,029 WARN L293 SmtUtils]: Spent 18.98s on a formula simplification. DAG size of input: 223 DAG size of output: 211 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 21:15:40,147 WARN L293 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 183 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 21:16:06,762 WARN L293 SmtUtils]: Spent 26.41s on a formula simplification. DAG size of input: 289 DAG size of output: 283 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 21:16:15,026 WARN L293 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 252 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 21:16:52,683 WARN L293 SmtUtils]: Spent 37.65s on a formula simplification. DAG size of input: 293 DAG size of output: 287 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 21:17:03,071 WARN L293 SmtUtils]: Spent 10.38s on a formula simplification that was a NOOP. DAG size: 256 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 21:17:29,456 WARN L293 SmtUtils]: Spent 25.29s on a formula simplification. DAG size of input: 280 DAG size of output: 277 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 21:17:41,928 WARN L293 SmtUtils]: Spent 12.47s on a formula simplification that was a NOOP. DAG size: 273 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 21:18:20,192 WARN L293 SmtUtils]: Spent 38.26s on a formula simplification. DAG size of input: 284 DAG size of output: 278 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)