./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:36:56,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:36:57,012 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:36:57,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:36:57,020 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:36:57,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:36:57,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:36:57,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:36:57,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:36:57,056 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:36:57,056 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:36:57,057 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:36:57,057 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:36:57,057 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:36:57,058 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:36:57,058 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:36:57,058 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:36:57,059 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:36:57,059 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:36:57,060 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:36:57,063 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:36:57,064 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:36:57,064 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:36:57,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:36:57,065 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:36:57,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:36:57,065 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:36:57,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:36:57,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:36:57,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:36:57,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:36:57,067 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:36:57,067 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:36:57,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:36:57,069 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:36:57,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:36:57,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:36:57,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:36:57,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:36:57,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:36:57,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:36:57,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:36:57,072 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:36:57,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:36:57,073 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:36:57,073 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:36:57,073 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:36:57,073 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf [2024-11-09 04:36:57,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:36:57,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:36:57,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:36:57,391 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:36:57,392 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:36:57,393 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i Unable to find full path for "g++" [2024-11-09 04:36:59,371 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:36:59,714 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:36:59,719 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2024-11-09 04:36:59,740 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/data/68775124d/613b073eb56041698b2e240220c464cb/FLAG048cb0d2e [2024-11-09 04:36:59,760 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/data/68775124d/613b073eb56041698b2e240220c464cb [2024-11-09 04:36:59,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:36:59,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:36:59,767 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:36:59,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:36:59,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:36:59,775 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:36:59" (1/1) ... [2024-11-09 04:36:59,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a8eb78f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:36:59, skipping insertion in model container [2024-11-09 04:36:59,777 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:36:59" (1/1) ... [2024-11-09 04:36:59,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:37:00,265 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2024-11-09 04:37:00,275 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2024-11-09 04:37:00,277 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2024-11-09 04:37:00,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:37:00,297 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:37:00,358 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2024-11-09 04:37:00,361 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2024-11-09 04:37:00,363 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2024-11-09 04:37:00,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:37:00,410 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:37:00,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:00 WrapperNode [2024-11-09 04:37:00,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:37:00,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:37:00,412 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:37:00,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:37:00,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:00" (1/1) ... [2024-11-09 04:37:00,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:00" (1/1) ... [2024-11-09 04:37:00,469 INFO L138 Inliner]: procedures = 139, calls = 56, calls flagged for inlining = 15, calls inlined = 14, statements flattened = 138 [2024-11-09 04:37:00,470 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:37:00,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:37:00,471 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:37:00,471 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:37:00,482 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:00" (1/1) ... [2024-11-09 04:37:00,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:00" (1/1) ... [2024-11-09 04:37:00,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:00" (1/1) ... [2024-11-09 04:37:00,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:00" (1/1) ... [2024-11-09 04:37:00,499 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:00" (1/1) ... [2024-11-09 04:37:00,503 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:00" (1/1) ... [2024-11-09 04:37:00,505 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:00" (1/1) ... [2024-11-09 04:37:00,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:00" (1/1) ... [2024-11-09 04:37:00,511 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:37:00,512 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:37:00,512 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:37:00,512 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:37:00,513 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:00" (1/1) ... [2024-11-09 04:37:00,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:37:00,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:37:00,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:37:00,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:37:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2024-11-09 04:37:00,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2024-11-09 04:37:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:37:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-09 04:37:00,608 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-09 04:37:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:37:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 04:37:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2024-11-09 04:37:00,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2024-11-09 04:37:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 04:37:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:37:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 04:37:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:37:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2024-11-09 04:37:00,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2024-11-09 04:37:00,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:37:00,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:37:00,773 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:37:00,775 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:37:01,114 INFO L? ?]: Removed 85 outVars from TransFormulas that were not future-live. [2024-11-09 04:37:01,115 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:37:01,218 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:37:01,221 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:37:01,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:37:01 BoogieIcfgContainer [2024-11-09 04:37:01,222 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:37:01,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:37:01,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:37:01,228 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:37:01,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:36:59" (1/3) ... [2024-11-09 04:37:01,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598ea0be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:37:01, skipping insertion in model container [2024-11-09 04:37:01,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:00" (2/3) ... [2024-11-09 04:37:01,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598ea0be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:37:01, skipping insertion in model container [2024-11-09 04:37:01,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:37:01" (3/3) ... [2024-11-09 04:37:01,232 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_unlock_at_exit.i [2024-11-09 04:37:01,254 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:37:01,255 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 04:37:01,314 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:37:01,321 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@8089095, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:37:01,321 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-09 04:37:01,326 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 32 states have (on average 1.375) internal successors, (44), 35 states have internal predecessors, (44), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 04:37:01,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 04:37:01,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:01,334 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:01,335 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:37:01,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:01,342 INFO L85 PathProgramCache]: Analyzing trace with hash 619865075, now seen corresponding path program 1 times [2024-11-09 04:37:01,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:37:01,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008996051] [2024-11-09 04:37:01,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:01,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:37:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:01,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:37:01,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:37:01,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008996051] [2024-11-09 04:37:01,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008996051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:37:01,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:37:01,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:37:01,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519922079] [2024-11-09 04:37:01,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:37:01,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:37:01,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:37:01,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:37:01,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:37:01,766 INFO L87 Difference]: Start difference. First operand has 49 states, 32 states have (on average 1.375) internal successors, (44), 35 states have internal predecessors, (44), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:37:01,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:37:01,883 INFO L93 Difference]: Finished difference Result 96 states and 124 transitions. [2024-11-09 04:37:01,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:37:01,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2024-11-09 04:37:01,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:37:01,897 INFO L225 Difference]: With dead ends: 96 [2024-11-09 04:37:01,897 INFO L226 Difference]: Without dead ends: 51 [2024-11-09 04:37:01,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:37:01,907 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:37:01,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:37:01,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-09 04:37:01,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-09 04:37:01,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 36 states have internal predecessors, (42), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-09 04:37:01,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2024-11-09 04:37:01,962 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 20 [2024-11-09 04:37:01,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:37:01,962 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2024-11-09 04:37:01,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:37:01,963 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2024-11-09 04:37:01,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 04:37:01,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:01,966 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:01,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:37:01,967 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:37:01,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:01,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1354719281, now seen corresponding path program 1 times [2024-11-09 04:37:01,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:37:01,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514538631] [2024-11-09 04:37:01,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:01,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:37:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:02,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:37:02,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:37:02,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514538631] [2024-11-09 04:37:02,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514538631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:37:02,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:37:02,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 04:37:02,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779248107] [2024-11-09 04:37:02,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:37:02,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:37:02,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:37:02,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:37:02,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:37:02,537 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:37:03,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:37:03,133 INFO L93 Difference]: Finished difference Result 149 states and 204 transitions. [2024-11-09 04:37:03,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 04:37:03,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2024-11-09 04:37:03,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:37:03,137 INFO L225 Difference]: With dead ends: 149 [2024-11-09 04:37:03,139 INFO L226 Difference]: Without dead ends: 104 [2024-11-09 04:37:03,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-09 04:37:03,141 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 79 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:37:03,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 202 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:37:03,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-09 04:37:03,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 81. [2024-11-09 04:37:03,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 59 states have internal predecessors, (69), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-09 04:37:03,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 103 transitions. [2024-11-09 04:37:03,166 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 103 transitions. Word has length 21 [2024-11-09 04:37:03,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:37:03,167 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 103 transitions. [2024-11-09 04:37:03,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:37:03,167 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 103 transitions. [2024-11-09 04:37:03,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 04:37:03,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:03,171 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:03,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:37:03,171 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:37:03,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:03,174 INFO L85 PathProgramCache]: Analyzing trace with hash 17187166, now seen corresponding path program 1 times [2024-11-09 04:37:03,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:37:03,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039341130] [2024-11-09 04:37:03,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:03,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:37:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:07,390 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:37:07,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:37:07,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039341130] [2024-11-09 04:37:07,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039341130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:37:07,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787121880] [2024-11-09 04:37:07,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:07,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:37:07,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:37:07,400 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:37:07,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:37:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:07,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 129 conjuncts are in the unsatisfiable core [2024-11-09 04:37:07,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:37:07,923 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-09 04:37:07,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-09 04:37:08,228 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-09 04:37:08,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-09 04:37:09,282 INFO L349 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2024-11-09 04:37:09,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 236 [2024-11-09 04:37:09,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-09 04:37:09,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:37:09,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 04:37:09,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-09 04:37:09,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-09 04:37:09,531 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:37:09,537 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:37:09,555 INFO L349 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2024-11-09 04:37:09,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 92 treesize of output 78 [2024-11-09 04:37:09,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 04:37:09,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 04:37:09,683 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:37:09,688 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:37:09,690 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:37:09,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 60 [2024-11-09 04:37:09,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 04:37:10,062 INFO L349 Elim1Store]: treesize reduction 141, result has 22.1 percent of original size [2024-11-09 04:37:10,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 282 treesize of output 321 [2024-11-09 04:37:11,096 INFO L349 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2024-11-09 04:37:11,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 29 [2024-11-09 04:37:11,115 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:37:11,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 28 [2024-11-09 04:37:11,221 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:37:11,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 14 [2024-11-09 04:37:12,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 22 [2024-11-09 04:37:12,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 22 [2024-11-09 04:37:14,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 71 [2024-11-09 04:37:14,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 71 [2024-11-09 04:37:17,984 INFO L349 Elim1Store]: treesize reduction 85, result has 24.1 percent of original size [2024-11-09 04:37:17,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 146 treesize of output 202 [2024-11-09 04:37:18,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 70 [2024-11-09 04:37:18,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:37:18,284 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:37:18,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 75 [2024-11-09 04:37:18,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2024-11-09 04:37:18,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-11-09 04:37:18,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 61 [2024-11-09 04:37:18,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2024-11-09 04:37:18,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 34 [2024-11-09 04:37:18,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 9 [2024-11-09 04:37:18,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:37:18,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:37:18,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:37:18,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 64 [2024-11-09 04:37:18,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2024-11-09 04:37:18,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-11-09 04:37:18,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 87 [2024-11-09 04:37:18,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2024-11-09 04:37:24,011 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 04:37:24,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:37:25,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 146 [2024-11-09 04:37:25,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 100 [2024-11-09 04:37:25,900 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (and (forall ((v_ArrVal_116 (Array Int Int)) (|v_mutex_lock_ldv_list_add_~new#1.base_15| Int) (v_ArrVal_117 Int)) (or (= |v_mutex_lock_ldv_list_add_~new#1.base_15| |c_~#mutexes~0.base|) (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_116)) (.cse1 (store (select (store (store |c_#memory_$Pointer$.base| |v_mutex_lock_ldv_list_add_~new#1.base_15| (store (select |c_#memory_$Pointer$.base| |v_mutex_lock_ldv_list_add_~new#1.base_15|) 0 |c_ULTIMATE.start_foo_~m1~0#1.base|)) .cse2 v_ArrVal_116) |v_mutex_lock_ldv_list_add_~new#1.base_15|) 4 .cse2))) (store (store .cse0 |v_mutex_lock_ldv_list_add_~new#1.base_15| (store .cse1 8 v_ArrVal_117)) |c_~#mutexes~0.base| (store (select (store .cse0 |v_mutex_lock_ldv_list_add_~new#1.base_15| (store .cse1 8 |c_~#mutexes~0.base|)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |v_mutex_lock_ldv_list_add_~new#1.base_15|))) |v_mutex_lock_ldv_list_add_~new#1.base_15|) 0) |c_ULTIMATE.start_foo_~m2~0#1.base|)))) (or (< |c_ULTIMATE.start_foo_~m2~0#1.offset| 4) (forall ((v_ArrVal_116 (Array Int Int)) (|v_mutex_lock_ldv_list_add_~new#1.base_15| Int) (v_ArrVal_117 Int)) (not (= (select (select (let ((.cse5 (store |c_#memory_$Pointer$.base| |v_mutex_lock_ldv_list_add_~new#1.base_15| (store (select |c_#memory_$Pointer$.base| |v_mutex_lock_ldv_list_add_~new#1.base_15|) 0 |c_ULTIMATE.start_foo_~m1~0#1.base|)))) (let ((.cse6 (select (select .cse5 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse6 v_ArrVal_116)) (.cse4 (store (select (store .cse5 .cse6 v_ArrVal_116) |v_mutex_lock_ldv_list_add_~new#1.base_15|) 4 .cse6))) (store (store .cse3 |v_mutex_lock_ldv_list_add_~new#1.base_15| (store .cse4 8 v_ArrVal_117)) |c_~#mutexes~0.base| (store (select (store .cse3 |v_mutex_lock_ldv_list_add_~new#1.base_15| (store .cse4 8 |c_~#mutexes~0.base|)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |v_mutex_lock_ldv_list_add_~new#1.base_15|))))) |v_mutex_lock_ldv_list_add_~new#1.base_15|) 0) |c_ULTIMATE.start_foo_~m2~0#1.base|)))) (or (= |c_~#mutexes~0.offset| 0) (forall ((v_ArrVal_116 (Array Int Int)) (|v_mutex_lock_ldv_list_add_~new#1.base_15| Int) (v_ArrVal_117 Int)) (not (= (select (select (let ((.cse7 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_116)) (.cse8 (store (select (store (store |c_#memory_$Pointer$.base| |v_mutex_lock_ldv_list_add_~new#1.base_15| (store (select |c_#memory_$Pointer$.base| |v_mutex_lock_ldv_list_add_~new#1.base_15|) 0 |c_ULTIMATE.start_foo_~m1~0#1.base|)) .cse2 v_ArrVal_116) |v_mutex_lock_ldv_list_add_~new#1.base_15|) 4 .cse2))) (store (store .cse7 |v_mutex_lock_ldv_list_add_~new#1.base_15| (store .cse8 8 v_ArrVal_117)) |c_~#mutexes~0.base| (store (select (store .cse7 |v_mutex_lock_ldv_list_add_~new#1.base_15| (store .cse8 8 |c_~#mutexes~0.base|)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |v_mutex_lock_ldv_list_add_~new#1.base_15|))) |v_mutex_lock_ldv_list_add_~new#1.base_15|) 0) |c_ULTIMATE.start_foo_~m2~0#1.base|)))))) is different from false [2024-11-09 04:37:25,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787121880] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:37:25,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [144167836] [2024-11-09 04:37:25,927 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2024-11-09 04:37:25,927 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:37:25,931 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:37:25,938 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:37:25,938 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:37:27,090 INFO L197 IcfgInterpreter]: Interpreting procedure mutex_lock with input of size 12 for LOIs [2024-11-09 04:37:27,372 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 75 for LOIs [2024-11-09 04:37:27,383 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 26 for LOIs [2024-11-09 04:37:27,393 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 16 for LOIs [2024-11-09 04:37:27,435 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:37:43,988 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '845#(and (exists ((|v_mutex_lock_#t~ret32#1_16| Int)) (and (<= 0 |v_mutex_lock_#t~ret32#1_16|) (<= |v_mutex_lock_#t~ret32#1_16| 1) (not (= |v_mutex_lock_#t~ret32#1_16| 0)))) (<= 1 |#StackHeapBarrier|) (= |mutex_lock_#in~m#1.offset| 0) (= |mutex_lock_#in~m#1.base| |mutex_lock_~m#1.base|) (= |~#mutexes~0.base| 3) (= |~#mutexes~0.offset| 0) (= |mutex_lock_~m#1.offset| 0))' at error location [2024-11-09 04:37:43,988 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:37:43,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 04:37:43,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 53 [2024-11-09 04:37:43,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296212418] [2024-11-09 04:37:43,989 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 04:37:43,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-09 04:37:43,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:37:43,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-09 04:37:43,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=6748, Unknown=40, NotChecked=166, Total=7310 [2024-11-09 04:37:43,994 INFO L87 Difference]: Start difference. First operand 81 states and 103 transitions. Second operand has 53 states, 31 states have (on average 1.903225806451613) internal successors, (59), 37 states have internal predecessors, (59), 17 states have call successors, (18), 9 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-09 04:37:51,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:38:14,157 WARN L286 SmtUtils]: Spent 7.73s on a formula simplification. DAG size of input: 291 DAG size of output: 287 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:38:33,882 WARN L286 SmtUtils]: Spent 6.89s on a formula simplification. DAG size of input: 308 DAG size of output: 292 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:39:23,815 WARN L286 SmtUtils]: Spent 30.49s on a formula simplification. DAG size of input: 296 DAG size of output: 290 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:40:15,423 WARN L286 SmtUtils]: Spent 30.68s on a formula simplification. DAG size of input: 313 DAG size of output: 295 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:41:06,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:41:10,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:41:13,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:41:17,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:41:19,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:41:21,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:41:25,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:41:28,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:41:30,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:41:31,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:41:33,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:41:36,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:41:39,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:41:41,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:41:43,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:42:08,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:42:19,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:42:20,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:20,431 INFO L93 Difference]: Finished difference Result 188 states and 238 transitions. [2024-11-09 04:42:20,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-09 04:42:20,432 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 31 states have (on average 1.903225806451613) internal successors, (59), 37 states have internal predecessors, (59), 17 states have call successors, (18), 9 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 50 [2024-11-09 04:42:20,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:20,435 INFO L225 Difference]: With dead ends: 188 [2024-11-09 04:42:20,436 INFO L226 Difference]: Without dead ends: 139 [2024-11-09 04:42:20,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 3372 ImplicationChecksByTransitivity, 165.1s TimeCoverageRelationStatistics Valid=804, Invalid=14876, Unknown=74, NotChecked=248, Total=16002 [2024-11-09 04:42:20,441 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 362 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 3623 mSolverCounterSat, 101 mSolverCounterUnsat, 52 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 138.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 3776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 3623 IncrementalHoareTripleChecker+Invalid, 52 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:20,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1301 Invalid, 3776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [101 Valid, 3623 Invalid, 52 Unknown, 0 Unchecked, 139.5s Time] [2024-11-09 04:42:20,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-09 04:42:20,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 109. [2024-11-09 04:42:20,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 82 states have internal predecessors, (94), 17 states have call successors, (17), 8 states have call predecessors, (17), 14 states have return successors, (27), 18 states have call predecessors, (27), 17 states have call successors, (27) [2024-11-09 04:42:20,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 138 transitions. [2024-11-09 04:42:20,491 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 138 transitions. Word has length 50 [2024-11-09 04:42:20,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:20,492 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 138 transitions. [2024-11-09 04:42:20,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 31 states have (on average 1.903225806451613) internal successors, (59), 37 states have internal predecessors, (59), 17 states have call successors, (18), 9 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-09 04:42:20,493 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 138 transitions. [2024-11-09 04:42:20,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-09 04:42:20,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:20,495 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:20,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:42:20,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-09 04:42:20,700 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:20,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:20,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1248925033, now seen corresponding path program 1 times [2024-11-09 04:42:20,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:42:20,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952952090] [2024-11-09 04:42:20,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:20,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:42:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:25,654 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 04:42:25,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:42:25,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952952090] [2024-11-09 04:42:25,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952952090] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:42:25,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056620323] [2024-11-09 04:42:25,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:25,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:42:25,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:42:25,658 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:42:25,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:42:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:25,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 130 conjuncts are in the unsatisfiable core [2024-11-09 04:42:25,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:26,180 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-09 04:42:26,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-09 04:42:26,282 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-09 04:42:26,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-09 04:42:27,588 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:27,652 INFO L349 Elim1Store]: treesize reduction 32, result has 37.3 percent of original size [2024-11-09 04:42:27,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 75 [2024-11-09 04:42:27,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:27,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2024-11-09 04:42:27,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:27,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2024-11-09 04:42:27,768 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:27,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 30 [2024-11-09 04:42:29,203 INFO L349 Elim1Store]: treesize reduction 374, result has 36.9 percent of original size [2024-11-09 04:42:29,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 560 treesize of output 711 [2024-11-09 04:42:29,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2024-11-09 04:42:31,707 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:31,711 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:31,718 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:31,727 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:31,731 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:31,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2024-11-09 04:42:31,789 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:31,803 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:31,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 73 [2024-11-09 04:42:31,982 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:32,005 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:32,017 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:32,075 INFO L349 Elim1Store]: treesize reduction 40, result has 28.6 percent of original size [2024-11-09 04:42:32,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 308 treesize of output 327 [2024-11-09 04:42:32,631 INFO L349 Elim1Store]: treesize reduction 24, result has 54.7 percent of original size [2024-11-09 04:42:32,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 1235 treesize of output 1108 [2024-11-09 04:42:33,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:33,526 INFO L349 Elim1Store]: treesize reduction 61, result has 1.6 percent of original size [2024-11-09 04:42:33,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 26 [2024-11-09 04:42:33,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:33,895 INFO L349 Elim1Store]: treesize reduction 61, result has 1.6 percent of original size [2024-11-09 04:42:33,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 26 [2024-11-09 04:42:33,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:34,029 INFO L349 Elim1Store]: treesize reduction 61, result has 1.6 percent of original size [2024-11-09 04:42:34,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 26 [2024-11-09 04:42:37,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:37,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:37,144 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:37,169 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-09 04:42:37,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 90 [2024-11-09 04:42:37,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:37,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:37,717 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:37,737 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-09 04:42:37,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 86 [2024-11-09 04:42:37,790 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no need to replace index [2024-11-09 04:42:37,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1363155364] [2024-11-09 04:42:37,794 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2024-11-09 04:42:37,794 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:42:37,794 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:42:37,795 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:42:37,795 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:42:37,798 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:42:37,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1363155364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:37,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:42:37,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [27] total 27 [2024-11-09 04:42:37,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788620749] [2024-11-09 04:42:37,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:37,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:42:37,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:42:37,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:42:37,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1566, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 04:42:37,803 INFO L87 Difference]: Start difference. First operand 109 states and 138 transitions. Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 1 states have internal predecessors, (24), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-09 04:42:37,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:37,806 INFO L93 Difference]: Finished difference Result 109 states and 138 transitions. [2024-11-09 04:42:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:42:37,806 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 1 states have internal predecessors, (24), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 53 [2024-11-09 04:42:37,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:37,807 INFO L225 Difference]: With dead ends: 109 [2024-11-09 04:42:37,807 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:42:37,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=156, Invalid=1566, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 04:42:37,810 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:37,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:42:37,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:42:37,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:42:37,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-09 04:42:37,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:42:37,811 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2024-11-09 04:42:37,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:37,812 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:42:37,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 1 states have internal predecessors, (24), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-09 04:42:37,812 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:42:37,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:42:37,816 INFO L782 garLoopResultBuilder]: Registering result SAFE for location mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-09 04:42:37,816 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-11-09 04:42:37,817 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-11-09 04:42:37,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 04:42:38,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:42:38,021 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 04:42:38,023 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: ManagedScript must not be locked at the beginning of Hoare annotation computation at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.NwaHoareProofProducer.computeHoareAnnotationComposer(NwaHoareProofProducer.java:148) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.NwaHoareProofProducer.lambda$3(NwaHoareProofProducer.java:139) at de.uni_freiburg.informatik.ultimate.util.statistics.TimeTracker.measure(TimeTracker.java:51) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.NwaHoareProofProducer$Statistics.measureProofComputation(NwaHoareProofProducer.java:191) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.NwaHoareProofProducer.computeProof(NwaHoareProofProducer.java:138) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.NwaHoareProofProducer.getOrComputeProof(NwaHoareProofProducer.java:132) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.NwaHoareProofProducer.getOrComputeProof(NwaHoareProofProducer.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.BacktranslatingProofProducer.getOrComputeProof(BacktranslatingProofProducer.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 04:42:38,027 INFO L158 Benchmark]: Toolchain (without parser) took 338262.69ms. Allocated memory was 174.1MB in the beginning and 375.4MB in the end (delta: 201.3MB). Free memory was 137.4MB in the beginning and 148.8MB in the end (delta: -11.4MB). Peak memory consumption was 191.2MB. Max. memory is 16.1GB. [2024-11-09 04:42:38,028 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:42:38,028 INFO L158 Benchmark]: CACSL2BoogieTranslator took 643.74ms. Allocated memory is still 174.1MB. Free memory was 137.4MB in the beginning and 115.2MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 04:42:38,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.91ms. Allocated memory is still 174.1MB. Free memory was 115.2MB in the beginning and 112.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:42:38,029 INFO L158 Benchmark]: Boogie Preprocessor took 40.46ms. Allocated memory is still 174.1MB. Free memory was 112.7MB in the beginning and 110.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:42:38,029 INFO L158 Benchmark]: RCFGBuilder took 710.66ms. Allocated memory is still 174.1MB. Free memory was 110.2MB in the beginning and 130.3MB in the end (delta: -20.1MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2024-11-09 04:42:38,032 INFO L158 Benchmark]: TraceAbstraction took 336802.70ms. Allocated memory was 174.1MB in the beginning and 375.4MB in the end (delta: 201.3MB). Free memory was 129.8MB in the beginning and 148.8MB in the end (delta: -19.1MB). Peak memory consumption was 182.3MB. Max. memory is 16.1GB. [2024-11-09 04:42:38,033 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 643.74ms. Allocated memory is still 174.1MB. Free memory was 137.4MB in the beginning and 115.2MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.91ms. Allocated memory is still 174.1MB. Free memory was 115.2MB in the beginning and 112.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.46ms. Allocated memory is still 174.1MB. Free memory was 112.7MB in the beginning and 110.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 710.66ms. Allocated memory is still 174.1MB. Free memory was 110.2MB in the beginning and 130.3MB in the end (delta: -20.1MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * TraceAbstraction took 336802.70ms. Allocated memory was 174.1MB in the beginning and 375.4MB in the end (delta: 201.3MB). Free memory was 129.8MB in the beginning and 148.8MB in the end (delta: -19.1MB). Peak memory consumption was 182.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: AssertionError: ManagedScript must not be locked at the beginning of Hoare annotation computation de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: ManagedScript must not be locked at the beginning of Hoare annotation computation: de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.NwaHoareProofProducer.computeHoareAnnotationComposer(NwaHoareProofProducer.java:148) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-09 04:42:38,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:42:40,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:42:41,088 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 04:42:41,097 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:42:41,099 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:42:41,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:42:41,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:42:41,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:42:41,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:42:41,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:42:41,132 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:42:41,132 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:42:41,133 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:42:41,133 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:42:41,135 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:42:41,136 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:42:41,136 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:42:41,137 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:42:41,137 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:42:41,138 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:42:41,141 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:42:41,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:42:41,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:42:41,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:42:41,143 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:42:41,143 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 04:42:41,144 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:42:41,144 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 04:42:41,144 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:42:41,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:42:41,145 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:42:41,147 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:42:41,148 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:42:41,148 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:42:41,149 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:42:41,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:42:41,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:42:41,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:42:41,150 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:42:41,150 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 04:42:41,151 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 04:42:41,152 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:42:41,152 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:42:41,167 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf [2024-11-09 04:42:41,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:42:41,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:42:41,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:42:41,715 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:42:41,716 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:42:41,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i Unable to find full path for "g++" [2024-11-09 04:42:44,486 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:42:44,815 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:42:44,816 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2024-11-09 04:42:44,846 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/data/9afc63d98/24bfd6b15bd94ee8b008ede2c131bbc6/FLAG359bdd8cb [2024-11-09 04:42:44,869 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/data/9afc63d98/24bfd6b15bd94ee8b008ede2c131bbc6 [2024-11-09 04:42:44,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:42:44,876 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:42:44,879 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:42:44,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:42:44,887 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:42:44,888 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:42:44" (1/1) ... [2024-11-09 04:42:44,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c9a4b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:44, skipping insertion in model container [2024-11-09 04:42:44,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:42:44" (1/1) ... [2024-11-09 04:42:44,970 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:42:45,561 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 04:42:45,603 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2024-11-09 04:42:45,610 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2024-11-09 04:42:45,612 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2024-11-09 04:42:45,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:42:45,636 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 04:42:45,653 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:42:45,733 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 04:42:45,760 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2024-11-09 04:42:45,763 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2024-11-09 04:42:45,765 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2024-11-09 04:42:45,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:42:45,774 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:42:45,856 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2024-11-09 04:42:45,857 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2024-11-09 04:42:45,862 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2024-11-09 04:42:45,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:42:45,911 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:42:45,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:45 WrapperNode [2024-11-09 04:42:45,911 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:42:45,913 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:42:45,913 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:42:45,913 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:42:45,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:45" (1/1) ... [2024-11-09 04:42:45,958 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:45" (1/1) ... [2024-11-09 04:42:45,990 INFO L138 Inliner]: procedures = 140, calls = 56, calls flagged for inlining = 15, calls inlined = 14, statements flattened = 134 [2024-11-09 04:42:45,990 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:42:45,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:42:45,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:42:45,992 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:42:46,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:45" (1/1) ... [2024-11-09 04:42:46,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:45" (1/1) ... [2024-11-09 04:42:46,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:45" (1/1) ... [2024-11-09 04:42:46,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:45" (1/1) ... [2024-11-09 04:42:46,024 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:45" (1/1) ... [2024-11-09 04:42:46,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:45" (1/1) ... [2024-11-09 04:42:46,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:45" (1/1) ... [2024-11-09 04:42:46,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:45" (1/1) ... [2024-11-09 04:42:46,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:42:46,041 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:42:46,041 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:42:46,041 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:42:46,042 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:45" (1/1) ... [2024-11-09 04:42:46,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:42:46,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:42:46,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:42:46,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:42:46,149 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2024-11-09 04:42:46,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2024-11-09 04:42:46,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:42:46,150 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-09 04:42:46,150 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-09 04:42:46,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:42:46,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 04:42:46,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2024-11-09 04:42:46,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2024-11-09 04:42:46,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 04:42:46,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:42:46,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 04:42:46,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 04:42:46,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2024-11-09 04:42:46,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2024-11-09 04:42:46,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:42:46,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:42:46,356 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:42:46,359 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:42:47,031 INFO L? ?]: Removed 85 outVars from TransFormulas that were not future-live. [2024-11-09 04:42:47,031 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:42:47,065 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:42:47,066 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:42:47,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:42:47 BoogieIcfgContainer [2024-11-09 04:42:47,067 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:42:47,072 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:42:47,075 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:42:47,079 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:42:47,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:42:44" (1/3) ... [2024-11-09 04:42:47,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316d77f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:42:47, skipping insertion in model container [2024-11-09 04:42:47,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:45" (2/3) ... [2024-11-09 04:42:47,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316d77f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:42:47, skipping insertion in model container [2024-11-09 04:42:47,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:42:47" (3/3) ... [2024-11-09 04:42:47,085 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_unlock_at_exit.i [2024-11-09 04:42:47,112 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:42:47,112 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 04:42:47,204 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:42:47,213 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@769e8bd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:42:47,213 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-09 04:42:47,219 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 47 states have (on average 1.297872340425532) internal successors, (61), 50 states have internal predecessors, (61), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 04:42:47,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 04:42:47,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:47,231 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:47,232 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:47,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:47,239 INFO L85 PathProgramCache]: Analyzing trace with hash 354215593, now seen corresponding path program 1 times [2024-11-09 04:42:47,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:47,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987324852] [2024-11-09 04:42:47,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:47,258 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:42:47,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:47,262 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 04:42:47,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 04:42:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:47,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 04:42:47,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:47,519 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 04:42:47,519 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:42:47,520 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:47,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987324852] [2024-11-09 04:42:47,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987324852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:47,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:47,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:42:47,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209759905] [2024-11-09 04:42:47,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:47,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:42:47,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:47,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:42:47,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:42:47,597 INFO L87 Difference]: Start difference. First operand has 64 states, 47 states have (on average 1.297872340425532) internal successors, (61), 50 states have internal predecessors, (61), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 04:42:47,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:47,627 INFO L93 Difference]: Finished difference Result 124 states and 158 transitions. [2024-11-09 04:42:47,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:42:47,630 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2024-11-09 04:42:47,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:47,639 INFO L225 Difference]: With dead ends: 124 [2024-11-09 04:42:47,639 INFO L226 Difference]: Without dead ends: 59 [2024-11-09 04:42:47,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:42:47,648 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:47,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:42:47,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-09 04:42:47,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-09 04:42:47,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 45 states have internal predecessors, (52), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 04:42:47,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2024-11-09 04:42:47,701 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 27 [2024-11-09 04:42:47,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:47,702 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2024-11-09 04:42:47,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 04:42:47,703 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2024-11-09 04:42:47,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 04:42:47,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:47,705 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:47,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-09 04:42:47,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:42:47,906 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:47,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:47,908 INFO L85 PathProgramCache]: Analyzing trace with hash -706793367, now seen corresponding path program 1 times [2024-11-09 04:42:47,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:47,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668993190] [2024-11-09 04:42:47,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:47,909 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:42:47,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:47,913 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 04:42:47,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 04:42:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:48,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 04:42:48,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:48,164 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 04:42:48,165 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:42:48,165 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:48,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668993190] [2024-11-09 04:42:48,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668993190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:48,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:48,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:42:48,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698488422] [2024-11-09 04:42:48,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:48,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:42:48,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:48,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:42:48,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:42:48,172 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:42:48,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:48,211 INFO L93 Difference]: Finished difference Result 64 states and 77 transitions. [2024-11-09 04:42:48,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:42:48,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-11-09 04:42:48,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:48,218 INFO L225 Difference]: With dead ends: 64 [2024-11-09 04:42:48,218 INFO L226 Difference]: Without dead ends: 62 [2024-11-09 04:42:48,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:42:48,221 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:48,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:42:48,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-09 04:42:48,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-09 04:42:48,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 45 states have (on average 1.2) internal successors, (54), 47 states have internal predecessors, (54), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-09 04:42:48,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 75 transitions. [2024-11-09 04:42:48,240 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 75 transitions. Word has length 27 [2024-11-09 04:42:48,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:48,241 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 75 transitions. [2024-11-09 04:42:48,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:42:48,241 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 75 transitions. [2024-11-09 04:42:48,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 04:42:48,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:48,243 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:48,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 04:42:48,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:42:48,448 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:48,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:48,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1843211080, now seen corresponding path program 1 times [2024-11-09 04:42:48,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:48,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823242345] [2024-11-09 04:42:48,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:48,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:42:48,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:48,454 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 04:42:48,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 04:42:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:48,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 04:42:48,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:49,337 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 04:42:49,337 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:42:49,338 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:49,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823242345] [2024-11-09 04:42:49,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823242345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:49,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:49,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:42:49,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456679870] [2024-11-09 04:42:49,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:49,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:42:49,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:49,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:42:49,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:42:49,347 INFO L87 Difference]: Start difference. First operand 62 states and 75 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:42:50,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:50,151 INFO L93 Difference]: Finished difference Result 167 states and 214 transitions. [2024-11-09 04:42:50,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:42:50,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2024-11-09 04:42:50,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:50,156 INFO L225 Difference]: With dead ends: 167 [2024-11-09 04:42:50,157 INFO L226 Difference]: Without dead ends: 113 [2024-11-09 04:42:50,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:42:50,160 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 46 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:50,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 179 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:42:50,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-09 04:42:50,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 92. [2024-11-09 04:42:50,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 70 states have internal predecessors, (80), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-09 04:42:50,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 114 transitions. [2024-11-09 04:42:50,202 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 114 transitions. Word has length 28 [2024-11-09 04:42:50,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:50,203 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 114 transitions. [2024-11-09 04:42:50,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:42:50,204 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 114 transitions. [2024-11-09 04:42:50,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 04:42:50,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:50,209 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:50,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 04:42:50,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:42:50,410 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:50,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:50,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1338979586, now seen corresponding path program 1 times [2024-11-09 04:42:50,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:50,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796539000] [2024-11-09 04:42:50,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:50,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:42:50,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:50,416 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 04:42:50,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 04:42:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:50,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 04:42:50,619 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:50,674 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 04:42:50,674 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:42:50,675 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:50,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796539000] [2024-11-09 04:42:50,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796539000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:50,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:50,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:42:50,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176626763] [2024-11-09 04:42:50,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:50,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:42:50,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:50,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:42:50,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:42:50,680 INFO L87 Difference]: Start difference. First operand 92 states and 114 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 04:42:50,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:50,750 INFO L93 Difference]: Finished difference Result 164 states and 203 transitions. [2024-11-09 04:42:50,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:42:50,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2024-11-09 04:42:50,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:50,753 INFO L225 Difference]: With dead ends: 164 [2024-11-09 04:42:50,753 INFO L226 Difference]: Without dead ends: 96 [2024-11-09 04:42:50,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:42:50,755 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:50,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 202 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:42:50,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-09 04:42:50,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-09 04:42:50,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 69 states have (on average 1.2028985507246377) internal successors, (83), 72 states have internal predecessors, (83), 14 states have call successors, (14), 7 states have call predecessors, (14), 10 states have return successors, (21), 16 states have call predecessors, (21), 14 states have call successors, (21) [2024-11-09 04:42:50,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 118 transitions. [2024-11-09 04:42:50,797 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 118 transitions. Word has length 66 [2024-11-09 04:42:50,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:50,797 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 118 transitions. [2024-11-09 04:42:50,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 04:42:50,798 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 118 transitions. [2024-11-09 04:42:50,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 04:42:50,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:50,802 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:50,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-09 04:42:51,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:42:51,003 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:51,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:51,004 INFO L85 PathProgramCache]: Analyzing trace with hash -948906826, now seen corresponding path program 1 times [2024-11-09 04:42:51,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:51,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460659411] [2024-11-09 04:42:51,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:51,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:42:51,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:51,009 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 04:42:51,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 04:42:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:51,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 04:42:51,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:51,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-09 04:42:51,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-09 04:42:51,930 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 04:42:51,931 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:42:51,932 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:51,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1460659411] [2024-11-09 04:42:51,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1460659411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:51,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:51,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:42:51,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426906333] [2024-11-09 04:42:51,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:51,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:42:51,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:51,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:42:51,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:42:51,941 INFO L87 Difference]: Start difference. First operand 96 states and 118 transitions. Second operand has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-09 04:42:54,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:54,288 INFO L93 Difference]: Finished difference Result 217 states and 274 transitions. [2024-11-09 04:42:54,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 04:42:54,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 68 [2024-11-09 04:42:54,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:54,292 INFO L225 Difference]: With dead ends: 217 [2024-11-09 04:42:54,296 INFO L226 Difference]: Without dead ends: 117 [2024-11-09 04:42:54,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-11-09 04:42:54,299 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 112 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:54,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 198 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 04:42:54,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-09 04:42:54,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 102. [2024-11-09 04:42:54,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 79 states have internal predecessors, (88), 13 states have call successors, (13), 8 states have call predecessors, (13), 11 states have return successors, (21), 14 states have call predecessors, (21), 13 states have call successors, (21) [2024-11-09 04:42:54,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2024-11-09 04:42:54,342 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 68 [2024-11-09 04:42:54,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:54,344 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2024-11-09 04:42:54,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-09 04:42:54,345 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2024-11-09 04:42:54,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 04:42:54,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:54,349 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:54,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-09 04:42:54,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:42:54,553 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:54,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:54,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1902007605, now seen corresponding path program 1 times [2024-11-09 04:42:54,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:54,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [626675341] [2024-11-09 04:42:54,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:54,555 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:42:54,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:54,559 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 04:42:54,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5143bafa-d7cc-4b2e-a1af-d8f32c4a0c76/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 04:42:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:54,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 82 conjuncts are in the unsatisfiable core [2024-11-09 04:42:54,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:55,282 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-09 04:42:55,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2024-11-09 04:42:55,685 INFO L349 Elim1Store]: treesize reduction 22, result has 29.0 percent of original size [2024-11-09 04:42:55,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2024-11-09 04:42:56,990 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:56,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:56,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-11-09 04:42:57,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-09 04:42:57,029 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:57,031 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:57,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2024-11-09 04:42:57,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2024-11-09 04:42:57,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 04:42:57,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 7 [2024-11-09 04:42:57,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:57,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:57,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:57,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 8 [2024-11-09 04:42:57,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-09 04:42:57,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:57,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:57,254 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:57,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2024-11-09 04:42:57,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2024-11-09 04:42:57,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 04:42:57,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 7 [2024-11-09 04:42:57,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:57,424 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:57,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 8 [2024-11-09 04:42:57,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-09 04:42:57,466 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:57,468 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:42:57,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2024-11-09 04:42:57,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:57,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 04:42:57,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:57,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 04:42:57,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:42:57,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2024-11-09 04:43:31,487 WARN L286 SmtUtils]: Spent 30.90s on a formula simplification. DAG size of input: 131 DAG size of output: 71 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 04:43:31,487 INFO L349 Elim1Store]: treesize reduction 876, result has 33.0 percent of original size [2024-11-09 04:43:31,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 9 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 12 new quantified variables, introduced 20 case distinctions, treesize of input 3162 treesize of output 1744 [2024-11-09 04:43:34,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 04:43:50,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 174 [2024-11-09 04:44:23,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:44:23,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:44:23,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:44:23,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 336 treesize of output 396 [2024-11-09 04:44:23,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 190 [2024-11-09 04:44:23,840 INFO L349 Elim1Store]: treesize reduction 27, result has 32.5 percent of original size [2024-11-09 04:44:23,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 17 [2024-11-09 04:44:35,598 WARN L286 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 15 DAG size of output: 11 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 04:44:35,599 INFO L349 Elim1Store]: treesize reduction 21, result has 36.4 percent of original size [2024-11-09 04:44:35,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 4420 treesize of output 4341 [2024-11-09 04:44:46,604 WARN L286 SmtUtils]: Spent 9.78s on a formula simplification. DAG size of input: 80 DAG size of output: 40 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 04:44:46,604 INFO L349 Elim1Store]: treesize reduction 216, result has 24.5 percent of original size [2024-11-09 04:44:46,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 162 treesize of output 811 [2024-11-09 04:44:53,496 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:44:57,515 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:44:59,043 INFO L224 Elim1Store]: Index analysis took 8163 ms [2024-11-09 04:44:59,047 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:44:59,049 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:44:59,051 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:44:59,054 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:44:59,056 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:44:59,059 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:44:59,061 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:44:59,065 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:44:59,067 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:44:59,071 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:06,134 WARN L286 SmtUtils]: Spent 7.06s on a formula simplification. DAG size of input: 89 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 04:45:06,134 INFO L349 Elim1Store]: treesize reduction 354, result has 0.3 percent of original size [2024-11-09 04:45:06,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 19 case distinctions, treesize of input 171 treesize of output 544 [2024-11-09 04:45:12,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:45:15,088 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= v_prenex_129 v_prenex_132) [2024-11-09 04:45:15,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:45:16,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:45:19,255 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= v_prenex_132 v_prenex_128) [2024-11-09 04:45:20,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:45:21,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:45:21,227 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:22,226 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:22,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:45:23,738 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:27,560 INFO L224 Elim1Store]: Index analysis took 14827 ms [2024-11-09 04:45:27,563 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:27,565 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:27,567 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:27,570 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:27,573 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:27,588 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:27,591 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:27,594 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:27,596 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:27,600 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:32,843 WARN L286 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 51 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 04:45:32,844 INFO L349 Elim1Store]: treesize reduction 121, result has 0.8 percent of original size [2024-11-09 04:45:32,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 12 case distinctions, treesize of input 171 treesize of output 544 [2024-11-09 04:45:42,088 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:43,345 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:43,640 INFO L224 Elim1Store]: Index analysis took 2874 ms [2024-11-09 04:45:43,642 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:43,645 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:43,647 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:43,651 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:43,653 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:43,657 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:43,659 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:43,661 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:44,769 INFO L349 Elim1Store]: treesize reduction 323, result has 0.3 percent of original size [2024-11-09 04:45:44,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 17 case distinctions, treesize of input 151 treesize of output 366 [2024-11-09 04:45:49,218 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:49,293 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:50,572 INFO L224 Elim1Store]: Index analysis took 3164 ms [2024-11-09 04:45:50,575 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:50,578 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:50,580 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:50,584 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:50,586 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:50,589 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:50,592 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:50,595 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:45:54,337 INFO L349 Elim1Store]: treesize reduction 323, result has 0.3 percent of original size [2024-11-09 04:45:54,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 17 case distinctions, treesize of input 151 treesize of output 366 [2024-11-09 04:46:04,971 INFO L224 Elim1Store]: Index analysis took 765 ms [2024-11-09 04:46:04,972 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:46:05,177 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:46:05,178 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:46:05,327 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:46:05,768 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:46:06,112 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:46:58,793 WARN L286 SmtUtils]: Spent 52.68s on a formula simplification. DAG size of input: 152 DAG size of output: 28 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 04:46:58,793 INFO L349 Elim1Store]: treesize reduction 719, result has 5.8 percent of original size [2024-11-09 04:46:58,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 27 case distinctions, treesize of input 1641 treesize of output 1514 [2024-11-09 04:47:30,139 INFO L349 Elim1Store]: treesize reduction 96, result has 4.0 percent of original size [2024-11-09 04:47:30,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 66 treesize of output 21 [2024-11-09 04:47:35,938 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:35,941 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:35,944 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:36,010 INFO L349 Elim1Store]: treesize reduction 83, result has 1.2 percent of original size [2024-11-09 04:47:36,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 56 treesize of output 17 [2024-11-09 04:47:36,136 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:36,138 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:38,527 INFO L349 Elim1Store]: treesize reduction 149, result has 18.1 percent of original size [2024-11-09 04:47:38,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 226 treesize of output 403 [2024-11-09 04:47:41,831 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:42,106 INFO L224 Elim1Store]: Index analysis took 2459 ms [2024-11-09 04:47:42,109 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:42,111 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:42,115 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:42,118 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:42,122 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:42,125 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:42,350 INFO L349 Elim1Store]: treesize reduction 104, result has 1.0 percent of original size [2024-11-09 04:47:42,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 89 treesize of output 122 [2024-11-09 04:47:48,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:47:48,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:47:48,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:47:48,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:47:48,283 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:48,284 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:48,286 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:48,287 INFO L224 Elim1Store]: Index analysis took 221 ms [2024-11-09 04:47:48,288 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:48,289 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:48,291 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:48,292 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:47:50,734 INFO L349 Elim1Store]: treesize reduction 174, result has 0.6 percent of original size [2024-11-09 04:47:50,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 91 treesize of output 62 [2024-11-09 04:49:30,847 WARN L286 SmtUtils]: Spent 1.59m on a formula simplification. DAG size of input: 220 DAG size of output: 84 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 04:49:30,848 INFO L349 Elim1Store]: treesize reduction 1068, result has 15.3 percent of original size [2024-11-09 04:49:30,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 257 treesize of output 668 [2024-11-09 04:50:57,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:57,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:57,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:57,992 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:50:59,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:51:01,462 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:03,039 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:03,398 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:03,399 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:03,730 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:03,981 INFO L224 Elim1Store]: Index analysis took 7070 ms [2024-11-09 04:51:03,983 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:03,984 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:03,987 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:03,988 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:03,990 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:03,992 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:03,994 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:08,500 INFO L349 Elim1Store]: treesize reduction 389, result has 0.3 percent of original size [2024-11-09 04:51:08,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 21 case distinctions, treesize of input 168 treesize of output 197 [2024-11-09 04:51:14,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:51:14,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:51:14,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:51:14,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:51:14,953 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:15,084 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:17,121 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= v_prenex_132 v_prenex_128) [2024-11-09 04:51:17,990 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:17,991 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:19,952 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:19,952 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:19,953 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:20,388 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:20,389 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:20,515 INFO L224 Elim1Store]: Index analysis took 5860 ms [2024-11-09 04:51:20,517 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:20,518 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:20,520 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:20,522 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:20,523 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:20,525 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:20,527 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:28,826 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification. DAG size of input: 53 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 04:51:28,827 INFO L349 Elim1Store]: treesize reduction 161, result has 0.6 percent of original size [2024-11-09 04:51:28,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 168 treesize of output 197 [2024-11-09 04:51:37,715 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:51:37,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:51:37,998 INFO L173 IndexEqualityManager]: detected equality via solver