./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:56:43,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:56:43,243 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 02:56:43,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:56:43,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:56:43,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:56:43,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:56:43,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:56:43,304 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:56:43,304 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:56:43,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:56:43,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:56:43,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:56:43,306 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:56:43,306 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:56:43,306 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:56:43,307 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:56:43,307 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:56:43,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:56:43,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:56:43,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:56:43,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:56:43,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:56:43,307 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:56:43,307 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:56:43,307 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:56:43,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:56:43,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:56:43,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:56:43,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:56:43,309 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:56:43,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:56:43,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:56:43,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:56:43,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:56:43,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:56:43,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:56:43,311 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:56:43,311 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:56:43,311 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:56:43,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:56:43,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:56:43,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:56:43,311 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:56:43,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:56:43,312 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a [2024-11-28 02:56:43,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:56:43,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:56:43,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:56:43,651 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:56:43,652 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:56:43,654 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-11-28 02:56:46,755 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/data/bac7932b6/ea987bcfc3964bfda10b6e047245100c/FLAGe63bcb52b [2024-11-28 02:56:47,408 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:56:47,409 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-11-28 02:56:47,453 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/data/bac7932b6/ea987bcfc3964bfda10b6e047245100c/FLAGe63bcb52b [2024-11-28 02:56:47,481 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/data/bac7932b6/ea987bcfc3964bfda10b6e047245100c [2024-11-28 02:56:47,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:56:47,487 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:56:47,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:56:47,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:56:47,496 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:56:47,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:47" (1/1) ... [2024-11-28 02:56:47,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a3c29ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:47, skipping insertion in model container [2024-11-28 02:56:47,500 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:47" (1/1) ... [2024-11-28 02:56:47,623 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:56:48,695 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_b93f4bb9-d71a-497d-a5bb-f98943ae006b/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2024-11-28 02:56:48,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:56:48,810 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:56:49,115 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_b93f4bb9-d71a-497d-a5bb-f98943ae006b/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2024-11-28 02:56:49,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:56:49,190 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:56:49,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49 WrapperNode [2024-11-28 02:56:49,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:56:49,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:56:49,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:56:49,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:56:49,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,355 INFO L138 Inliner]: procedures = 78, calls = 266, calls flagged for inlining = 29, calls inlined = 26, statements flattened = 1017 [2024-11-28 02:56:49,355 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:56:49,356 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:56:49,356 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:56:49,356 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:56:49,367 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,388 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,515 INFO L175 MemorySlicer]: Split 160 memory accesses to 6 slices as follows [82, 2, 42, 6, 8, 20]. 51 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [6, 2, 0, 6, 8, 1]. The 103 writes are split as follows [42, 0, 42, 0, 0, 19]. [2024-11-28 02:56:49,515 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,515 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,569 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,573 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,580 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,587 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:56:49,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:56:49,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:56:49,608 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:56:49,609 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:56:49,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:49,670 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:56:49,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:56:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_init [2024-11-28 02:56:49,716 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_init [2024-11-28 02:56:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:56:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-28 02:56:49,717 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-28 02:56:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 02:56:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 02:56:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 02:56:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 02:56:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 02:56:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 02:56:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:56:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:56:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:56:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 02:56:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 02:56:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 02:56:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-28 02:56:49,718 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-28 02:56:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_exit [2024-11-28 02:56:49,718 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_exit [2024-11-28 02:56:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 02:56:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 02:56:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 02:56:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 02:56:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 02:56:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 02:56:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-28 02:56:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-28 02:56:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:56:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:56:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:56:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:56:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 02:56:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 02:56:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:56:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:56:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:56:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 02:56:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 02:56:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 02:56:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-28 02:56:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-28 02:56:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-28 02:56:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-28 02:56:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2024-11-28 02:56:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2024-11-28 02:56:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:56:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2024-11-28 02:56:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2024-11-28 02:56:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-28 02:56:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-28 02:56:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-28 02:56:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-28 02:56:49,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:56:49,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:56:49,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:56:49,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:56:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 02:56:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 02:56:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-28 02:56:49,723 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-28 02:56:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2024-11-28 02:56:49,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2024-11-28 02:56:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-11-28 02:56:49,724 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-11-28 02:56:49,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2024-11-28 02:56:49,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2024-11-28 02:56:49,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:56:49,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:56:49,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:56:49,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:56:49,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 02:56:49,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 02:56:49,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:56:49,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:56:49,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:56:50,171 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:56:50,174 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:56:50,536 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2024-11-28 02:56:50,563 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 02:56:56,431 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2024-11-28 02:56:56,431 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2024-11-28 02:56:56,567 INFO L? ?]: Removed 279 outVars from TransFormulas that were not future-live. [2024-11-28 02:56:56,571 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:56:56,605 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:56:56,607 INFO L312 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-28 02:56:56,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:56 BoogieIcfgContainer [2024-11-28 02:56:56,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:56:56,611 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:56:56,612 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:56:56,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:56:56,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:47" (1/3) ... [2024-11-28 02:56:56,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8374828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:56, skipping insertion in model container [2024-11-28 02:56:56,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (2/3) ... [2024-11-28 02:56:56,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8374828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:56, skipping insertion in model container [2024-11-28 02:56:56,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:56" (3/3) ... [2024-11-28 02:56:56,627 INFO L128 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-11-28 02:56:56,651 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:56:56,654 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i that has 16 procedures, 202 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-11-28 02:56:56,762 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:56:56,785 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@558cf09d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:56:56,785 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:56:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 157 states have (on average 1.356687898089172) internal successors, (213), 163 states have internal predecessors, (213), 30 states have call successors, (30), 15 states have call predecessors, (30), 14 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 02:56:56,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-28 02:56:56,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:56,806 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:56,807 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:56:56,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:56,815 INFO L85 PathProgramCache]: Analyzing trace with hash -699315634, now seen corresponding path program 1 times [2024-11-28 02:56:56,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:56,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061802880] [2024-11-28 02:56:56,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:56,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:00,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:00,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:00,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061802880] [2024-11-28 02:57:00,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061802880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:00,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:00,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:57:00,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850953955] [2024-11-28 02:57:00,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:00,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:57:00,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:00,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:57:00,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:57:00,483 INFO L87 Difference]: Start difference. First operand has 201 states, 157 states have (on average 1.356687898089172) internal successors, (213), 163 states have internal predecessors, (213), 30 states have call successors, (30), 15 states have call predecessors, (30), 14 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:57:00,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:00,701 INFO L93 Difference]: Finished difference Result 551 states and 769 transitions. [2024-11-28 02:57:00,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:57:00,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-28 02:57:00,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:00,723 INFO L225 Difference]: With dead ends: 551 [2024-11-28 02:57:00,724 INFO L226 Difference]: Without dead ends: 358 [2024-11-28 02:57:00,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:57:00,734 INFO L435 NwaCegarLoop]: 319 mSDtfsCounter, 235 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:00,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 534 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:57:00,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-28 02:57:00,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 354. [2024-11-28 02:57:00,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 279 states have (on average 1.2580645161290323) internal successors, (351), 283 states have internal predecessors, (351), 50 states have call successors, (50), 25 states have call predecessors, (50), 24 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 02:57:00,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 447 transitions. [2024-11-28 02:57:00,865 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 447 transitions. Word has length 17 [2024-11-28 02:57:00,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:00,866 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 447 transitions. [2024-11-28 02:57:00,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:57:00,866 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 447 transitions. [2024-11-28 02:57:00,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-28 02:57:00,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:00,868 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:00,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:57:00,869 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:00,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:00,870 INFO L85 PathProgramCache]: Analyzing trace with hash -204055180, now seen corresponding path program 1 times [2024-11-28 02:57:00,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:00,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412661460] [2024-11-28 02:57:00,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:00,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:03,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:03,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:03,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412661460] [2024-11-28 02:57:03,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412661460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:03,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:03,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:57:03,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361766769] [2024-11-28 02:57:03,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:03,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:57:03,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:03,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:57:03,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:57:03,243 INFO L87 Difference]: Start difference. First operand 354 states and 447 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:57:03,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:03,373 INFO L93 Difference]: Finished difference Result 1023 states and 1302 transitions. [2024-11-28 02:57:03,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:57:03,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-11-28 02:57:03,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:03,385 INFO L225 Difference]: With dead ends: 1023 [2024-11-28 02:57:03,385 INFO L226 Difference]: Without dead ends: 679 [2024-11-28 02:57:03,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:57:03,392 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 225 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:03,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 546 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:57:03,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-11-28 02:57:03,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 672. [2024-11-28 02:57:03,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 533 states have (on average 1.2551594746716699) internal successors, (669), 536 states have internal predecessors, (669), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 02:57:03,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 851 transitions. [2024-11-28 02:57:03,487 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 851 transitions. Word has length 18 [2024-11-28 02:57:03,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:03,488 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 851 transitions. [2024-11-28 02:57:03,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:57:03,488 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 851 transitions. [2024-11-28 02:57:03,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 02:57:03,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:03,491 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:03,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:57:03,491 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:03,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:03,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1993488230, now seen corresponding path program 1 times [2024-11-28 02:57:03,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:03,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273706052] [2024-11-28 02:57:03,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:03,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:06,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:06,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:06,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273706052] [2024-11-28 02:57:06,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273706052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:06,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:06,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:57:06,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150129381] [2024-11-28 02:57:06,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:06,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:57:06,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:06,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:57:06,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:57:06,029 INFO L87 Difference]: Start difference. First operand 672 states and 851 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:57:06,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:06,201 INFO L93 Difference]: Finished difference Result 1331 states and 1688 transitions. [2024-11-28 02:57:06,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:57:06,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2024-11-28 02:57:06,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:06,211 INFO L225 Difference]: With dead ends: 1331 [2024-11-28 02:57:06,213 INFO L226 Difference]: Without dead ends: 672 [2024-11-28 02:57:06,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:57:06,218 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 0 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:06,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1168 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:57:06,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2024-11-28 02:57:06,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2024-11-28 02:57:06,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 533 states have (on average 1.25328330206379) internal successors, (668), 536 states have internal predecessors, (668), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 02:57:06,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 850 transitions. [2024-11-28 02:57:06,287 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 850 transitions. Word has length 49 [2024-11-28 02:57:06,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:06,288 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 850 transitions. [2024-11-28 02:57:06,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:57:06,288 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 850 transitions. [2024-11-28 02:57:06,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 02:57:06,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:06,292 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:06,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:57:06,293 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:06,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:06,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1393910753, now seen corresponding path program 1 times [2024-11-28 02:57:06,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:06,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666348826] [2024-11-28 02:57:06,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:06,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:08,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:08,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:08,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666348826] [2024-11-28 02:57:08,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666348826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:08,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:08,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:57:08,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070250272] [2024-11-28 02:57:08,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:08,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:57:08,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:08,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:57:08,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:57:08,597 INFO L87 Difference]: Start difference. First operand 672 states and 850 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 02:57:08,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:08,716 INFO L93 Difference]: Finished difference Result 1370 states and 1753 transitions. [2024-11-28 02:57:08,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:57:08,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 54 [2024-11-28 02:57:08,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:08,723 INFO L225 Difference]: With dead ends: 1370 [2024-11-28 02:57:08,723 INFO L226 Difference]: Without dead ends: 715 [2024-11-28 02:57:08,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:57:08,727 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 105 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:08,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 351 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:57:08,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-28 02:57:08,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 703. [2024-11-28 02:57:08,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 564 states have (on average 1.2588652482269505) internal successors, (710), 567 states have internal predecessors, (710), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 02:57:08,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 892 transitions. [2024-11-28 02:57:08,812 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 892 transitions. Word has length 54 [2024-11-28 02:57:08,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:08,815 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 892 transitions. [2024-11-28 02:57:08,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 02:57:08,816 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 892 transitions. [2024-11-28 02:57:08,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 02:57:08,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:08,823 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:08,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:57:08,825 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:08,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:08,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1980657502, now seen corresponding path program 1 times [2024-11-28 02:57:08,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:08,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695756557] [2024-11-28 02:57:08,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:08,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:12,651 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-28 02:57:12,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:12,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695756557] [2024-11-28 02:57:12,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695756557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:57:12,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062065968] [2024-11-28 02:57:12,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:12,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:57:12,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:57:12,657 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:57:12,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:57:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:15,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 02:57:15,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:57:15,414 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-28 02:57:15,415 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:57:15,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062065968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:15,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:57:15,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-28 02:57:15,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193859341] [2024-11-28 02:57:15,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:15,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:57:15,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:15,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:57:15,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:57:15,418 INFO L87 Difference]: Start difference. First operand 703 states and 892 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 02:57:15,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:15,509 INFO L93 Difference]: Finished difference Result 1152 states and 1459 transitions. [2024-11-28 02:57:15,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:57:15,510 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 91 [2024-11-28 02:57:15,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:15,515 INFO L225 Difference]: With dead ends: 1152 [2024-11-28 02:57:15,515 INFO L226 Difference]: Without dead ends: 467 [2024-11-28 02:57:15,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:57:15,518 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:15,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 696 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:57:15,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-28 02:57:15,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2024-11-28 02:57:15,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 370 states have (on average 1.2432432432432432) internal successors, (460), 373 states have internal predecessors, (460), 63 states have call successors, (63), 34 states have call predecessors, (63), 33 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 02:57:15,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 582 transitions. [2024-11-28 02:57:15,552 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 582 transitions. Word has length 91 [2024-11-28 02:57:15,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:15,553 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 582 transitions. [2024-11-28 02:57:15,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 02:57:15,553 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 582 transitions. [2024-11-28 02:57:15,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 02:57:15,555 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:15,556 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:15,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:57:15,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:57:15,761 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:15,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:15,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1910262912, now seen corresponding path program 1 times [2024-11-28 02:57:15,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:15,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798002790] [2024-11-28 02:57:15,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:15,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:18,912 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:57:18,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:18,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798002790] [2024-11-28 02:57:18,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798002790] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:57:18,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371141797] [2024-11-28 02:57:18,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:18,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:57:18,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:57:18,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:57:18,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:57:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:21,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 1617 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 02:57:21,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:57:21,589 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 02:57:21,590 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:57:21,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371141797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:21,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:57:21,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 12 [2024-11-28 02:57:21,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532972726] [2024-11-28 02:57:21,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:21,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:57:21,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:21,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:57:21,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:57:21,593 INFO L87 Difference]: Start difference. First operand 467 states and 582 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 02:57:22,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:22,022 INFO L93 Difference]: Finished difference Result 952 states and 1197 transitions. [2024-11-28 02:57:22,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:57:22,023 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) Word has length 90 [2024-11-28 02:57:22,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:22,029 INFO L225 Difference]: With dead ends: 952 [2024-11-28 02:57:22,029 INFO L226 Difference]: Without dead ends: 503 [2024-11-28 02:57:22,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:57:22,037 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 2 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:22,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2044 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:57:22,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-11-28 02:57:22,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 500. [2024-11-28 02:57:22,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 397 states have (on average 1.234256926952141) internal successors, (490), 400 states have internal predecessors, (490), 63 states have call successors, (63), 34 states have call predecessors, (63), 39 states have return successors, (74), 65 states have call predecessors, (74), 59 states have call successors, (74) [2024-11-28 02:57:22,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 627 transitions. [2024-11-28 02:57:22,086 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 627 transitions. Word has length 90 [2024-11-28 02:57:22,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:22,087 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 627 transitions. [2024-11-28 02:57:22,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 02:57:22,088 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 627 transitions. [2024-11-28 02:57:22,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 02:57:22,090 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:22,091 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:22,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:57:22,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:57:22,292 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:22,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:22,292 INFO L85 PathProgramCache]: Analyzing trace with hash 683963905, now seen corresponding path program 1 times [2024-11-28 02:57:22,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:22,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355668507] [2024-11-28 02:57:22,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:22,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:25,176 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:57:25,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:25,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355668507] [2024-11-28 02:57:25,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355668507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:57:25,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360017258] [2024-11-28 02:57:25,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:25,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:57:25,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:57:25,182 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:57:25,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:57:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:27,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 1626 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 02:57:27,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:57:27,802 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 02:57:27,803 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:57:28,517 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:57:28,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360017258] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:57:28,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:57:28,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2024-11-28 02:57:28,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094125376] [2024-11-28 02:57:28,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:57:28,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:57:28,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:28,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:57:28,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:57:28,521 INFO L87 Difference]: Start difference. First operand 500 states and 627 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-28 02:57:29,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:29,004 INFO L93 Difference]: Finished difference Result 1021 states and 1290 transitions. [2024-11-28 02:57:29,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:57:29,005 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 90 [2024-11-28 02:57:29,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:29,010 INFO L225 Difference]: With dead ends: 1021 [2024-11-28 02:57:29,012 INFO L226 Difference]: Without dead ends: 539 [2024-11-28 02:57:29,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:57:29,015 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 3 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:29,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1853 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:57:29,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-28 02:57:29,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 515. [2024-11-28 02:57:29,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 409 states have (on average 1.2273838630806846) internal successors, (502), 409 states have internal predecessors, (502), 66 states have call successors, (66), 34 states have call predecessors, (66), 39 states have return successors, (80), 71 states have call predecessors, (80), 62 states have call successors, (80) [2024-11-28 02:57:29,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 648 transitions. [2024-11-28 02:57:29,059 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 648 transitions. Word has length 90 [2024-11-28 02:57:29,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:29,060 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 648 transitions. [2024-11-28 02:57:29,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-28 02:57:29,060 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 648 transitions. [2024-11-28 02:57:29,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 02:57:29,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:29,066 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:29,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:57:29,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 02:57:29,271 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:29,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:29,272 INFO L85 PathProgramCache]: Analyzing trace with hash 784875872, now seen corresponding path program 2 times [2024-11-28 02:57:29,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:29,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779953001] [2024-11-28 02:57:29,272 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:57:29,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:30,781 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:57:30,781 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:57:31,561 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-28 02:57:31,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:31,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779953001] [2024-11-28 02:57:31,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779953001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:31,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:31,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:57:31,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865797201] [2024-11-28 02:57:31,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:31,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:57:31,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:31,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:57:31,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:57:31,564 INFO L87 Difference]: Start difference. First operand 515 states and 648 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 02:57:31,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:31,699 INFO L93 Difference]: Finished difference Result 918 states and 1165 transitions. [2024-11-28 02:57:31,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:57:31,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 90 [2024-11-28 02:57:31,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:31,707 INFO L225 Difference]: With dead ends: 918 [2024-11-28 02:57:31,707 INFO L226 Difference]: Without dead ends: 530 [2024-11-28 02:57:31,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:57:31,710 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 0 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:31,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1391 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:57:31,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-28 02:57:31,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-11-28 02:57:31,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 421 states have (on average 1.2209026128266034) internal successors, (514), 418 states have internal predecessors, (514), 66 states have call successors, (66), 34 states have call predecessors, (66), 42 states have return successors, (85), 77 states have call predecessors, (85), 62 states have call successors, (85) [2024-11-28 02:57:31,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 665 transitions. [2024-11-28 02:57:31,752 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 665 transitions. Word has length 90 [2024-11-28 02:57:31,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:31,752 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 665 transitions. [2024-11-28 02:57:31,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 02:57:31,753 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 665 transitions. [2024-11-28 02:57:31,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 02:57:31,754 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:31,755 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:31,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:57:31,755 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:31,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:31,756 INFO L85 PathProgramCache]: Analyzing trace with hash 796191999, now seen corresponding path program 1 times [2024-11-28 02:57:31,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:31,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317741758] [2024-11-28 02:57:31,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:31,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:34,608 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-28 02:57:34,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:34,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317741758] [2024-11-28 02:57:34,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317741758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:34,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:34,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:57:34,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242432224] [2024-11-28 02:57:34,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:34,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:57:34,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:34,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:57:34,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:57:34,611 INFO L87 Difference]: Start difference. First operand 530 states and 665 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 02:57:34,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:34,876 INFO L93 Difference]: Finished difference Result 928 states and 1174 transitions. [2024-11-28 02:57:34,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:57:34,877 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 90 [2024-11-28 02:57:34,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:34,886 INFO L225 Difference]: With dead ends: 928 [2024-11-28 02:57:34,886 INFO L226 Difference]: Without dead ends: 530 [2024-11-28 02:57:34,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:57:34,889 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1832 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:34,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1832 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:57:34,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-28 02:57:34,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-11-28 02:57:34,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 421 states have (on average 1.2161520190023754) internal successors, (512), 418 states have internal predecessors, (512), 66 states have call successors, (66), 34 states have call predecessors, (66), 42 states have return successors, (85), 77 states have call predecessors, (85), 62 states have call successors, (85) [2024-11-28 02:57:34,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 663 transitions. [2024-11-28 02:57:34,928 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 663 transitions. Word has length 90 [2024-11-28 02:57:34,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:34,929 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 663 transitions. [2024-11-28 02:57:34,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 02:57:34,930 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 663 transitions. [2024-11-28 02:57:34,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 02:57:34,932 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:34,932 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:34,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:57:34,932 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:34,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:34,933 INFO L85 PathProgramCache]: Analyzing trace with hash 181052609, now seen corresponding path program 1 times [2024-11-28 02:57:34,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:34,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254138986] [2024-11-28 02:57:34,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:34,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:36,697 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-28 02:57:36,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:36,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254138986] [2024-11-28 02:57:36,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254138986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:36,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:36,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:57:36,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363933358] [2024-11-28 02:57:36,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:36,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:57:36,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:36,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:57:36,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:57:36,699 INFO L87 Difference]: Start difference. First operand 530 states and 663 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:57:40,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:57:41,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:41,288 INFO L93 Difference]: Finished difference Result 933 states and 1177 transitions. [2024-11-28 02:57:41,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:57:41,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 91 [2024-11-28 02:57:41,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:41,297 INFO L225 Difference]: With dead ends: 933 [2024-11-28 02:57:41,297 INFO L226 Difference]: Without dead ends: 930 [2024-11-28 02:57:41,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:57:41,302 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 304 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:41,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 725 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 02:57:41,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2024-11-28 02:57:41,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 902. [2024-11-28 02:57:41,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 723 states have (on average 1.2268326417704012) internal successors, (887), 716 states have internal predecessors, (887), 110 states have call successors, (110), 54 states have call predecessors, (110), 68 states have return successors, (149), 131 states have call predecessors, (149), 106 states have call successors, (149) [2024-11-28 02:57:41,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1146 transitions. [2024-11-28 02:57:41,369 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1146 transitions. Word has length 91 [2024-11-28 02:57:41,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:41,369 INFO L471 AbstractCegarLoop]: Abstraction has 902 states and 1146 transitions. [2024-11-28 02:57:41,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:57:41,370 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1146 transitions. [2024-11-28 02:57:41,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 02:57:41,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:41,372 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:41,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:57:41,373 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:41,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:41,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1126178966, now seen corresponding path program 1 times [2024-11-28 02:57:41,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:41,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971137520] [2024-11-28 02:57:41,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:41,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-28 02:57:43,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:43,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971137520] [2024-11-28 02:57:43,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971137520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:43,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:43,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:57:43,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363049897] [2024-11-28 02:57:43,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:43,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:57:43,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:43,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:57:43,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:57:43,409 INFO L87 Difference]: Start difference. First operand 902 states and 1146 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 02:57:47,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:57:47,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:47,621 INFO L93 Difference]: Finished difference Result 1801 states and 2293 transitions. [2024-11-28 02:57:47,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:57:47,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 102 [2024-11-28 02:57:47,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:47,629 INFO L225 Difference]: With dead ends: 1801 [2024-11-28 02:57:47,629 INFO L226 Difference]: Without dead ends: 884 [2024-11-28 02:57:47,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:57:47,633 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 92 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:47,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 834 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 02:57:47,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2024-11-28 02:57:47,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 857. [2024-11-28 02:57:47,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 688 states have (on average 1.2209302325581395) internal successors, (840), 685 states have internal predecessors, (840), 109 states have call successors, (109), 48 states have call predecessors, (109), 59 states have return successors, (143), 123 states have call predecessors, (143), 105 states have call successors, (143) [2024-11-28 02:57:47,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1092 transitions. [2024-11-28 02:57:47,685 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1092 transitions. Word has length 102 [2024-11-28 02:57:47,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:47,685 INFO L471 AbstractCegarLoop]: Abstraction has 857 states and 1092 transitions. [2024-11-28 02:57:47,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 02:57:47,686 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1092 transitions. [2024-11-28 02:57:47,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 02:57:47,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:47,688 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:47,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:57:47,688 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:47,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:47,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1540614679, now seen corresponding path program 1 times [2024-11-28 02:57:47,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:47,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303875614] [2024-11-28 02:57:47,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:47,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:49,823 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:57:49,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:49,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303875614] [2024-11-28 02:57:49,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303875614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:49,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:49,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:57:49,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744659620] [2024-11-28 02:57:49,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:49,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:57:49,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:49,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:57:49,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:57:49,825 INFO L87 Difference]: Start difference. First operand 857 states and 1092 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:57:49,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:49,995 INFO L93 Difference]: Finished difference Result 1271 states and 1626 transitions. [2024-11-28 02:57:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:57:49,996 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2024-11-28 02:57:49,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:50,002 INFO L225 Difference]: With dead ends: 1271 [2024-11-28 02:57:50,003 INFO L226 Difference]: Without dead ends: 865 [2024-11-28 02:57:50,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:57:50,005 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:50,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1422 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:57:50,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-28 02:57:50,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-28 02:57:50,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 696 states have (on average 1.2183908045977012) internal successors, (848), 689 states have internal predecessors, (848), 109 states have call successors, (109), 48 states have call predecessors, (109), 59 states have return successors, (143), 127 states have call predecessors, (143), 105 states have call successors, (143) [2024-11-28 02:57:50,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1100 transitions. [2024-11-28 02:57:50,053 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1100 transitions. Word has length 110 [2024-11-28 02:57:50,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:50,053 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1100 transitions. [2024-11-28 02:57:50,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:57:50,054 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1100 transitions. [2024-11-28 02:57:50,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 02:57:50,056 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:50,056 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:50,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:57:50,056 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:50,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:50,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1210848918, now seen corresponding path program 1 times [2024-11-28 02:57:50,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:50,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772458494] [2024-11-28 02:57:50,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:50,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:52,542 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:57:52,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:52,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772458494] [2024-11-28 02:57:52,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772458494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:52,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:52,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:57:52,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102661553] [2024-11-28 02:57:52,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:52,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:57:52,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:52,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:57:52,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:57:52,547 INFO L87 Difference]: Start difference. First operand 865 states and 1100 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 7 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:57:52,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:52,811 INFO L93 Difference]: Finished difference Result 917 states and 1158 transitions. [2024-11-28 02:57:52,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:57:52,812 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 7 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2024-11-28 02:57:52,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:52,821 INFO L225 Difference]: With dead ends: 917 [2024-11-28 02:57:52,821 INFO L226 Difference]: Without dead ends: 869 [2024-11-28 02:57:52,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:57:52,822 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:52,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1839 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:57:52,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2024-11-28 02:57:52,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 869. [2024-11-28 02:57:52,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 700 states have (on average 1.217142857142857) internal successors, (852), 693 states have internal predecessors, (852), 109 states have call successors, (109), 48 states have call predecessors, (109), 59 states have return successors, (143), 127 states have call predecessors, (143), 105 states have call successors, (143) [2024-11-28 02:57:52,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1104 transitions. [2024-11-28 02:57:52,872 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1104 transitions. Word has length 110 [2024-11-28 02:57:52,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:52,872 INFO L471 AbstractCegarLoop]: Abstraction has 869 states and 1104 transitions. [2024-11-28 02:57:52,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 7 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:57:52,873 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1104 transitions. [2024-11-28 02:57:52,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 02:57:52,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:52,877 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:52,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:57:52,877 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:52,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:52,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1216121673, now seen corresponding path program 1 times [2024-11-28 02:57:52,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:52,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098962939] [2024-11-28 02:57:52,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:52,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:54,583 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-28 02:57:54,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:54,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098962939] [2024-11-28 02:57:54,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098962939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:54,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:54,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:57:54,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439601484] [2024-11-28 02:57:54,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:54,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:57:54,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:54,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:57:54,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:57:54,589 INFO L87 Difference]: Start difference. First operand 869 states and 1104 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 02:57:54,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:54,648 INFO L93 Difference]: Finished difference Result 1647 states and 2110 transitions. [2024-11-28 02:57:54,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:57:54,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-28 02:57:54,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:54,657 INFO L225 Difference]: With dead ends: 1647 [2024-11-28 02:57:54,659 INFO L226 Difference]: Without dead ends: 833 [2024-11-28 02:57:54,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:57:54,662 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:54,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 466 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:57:54,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2024-11-28 02:57:54,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 833. [2024-11-28 02:57:54,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 670 states have (on average 1.2119402985074628) internal successors, (812), 667 states have internal predecessors, (812), 105 states have call successors, (105), 48 states have call predecessors, (105), 57 states have return successors, (133), 117 states have call predecessors, (133), 101 states have call successors, (133) [2024-11-28 02:57:54,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1050 transitions. [2024-11-28 02:57:54,717 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1050 transitions. Word has length 111 [2024-11-28 02:57:54,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:54,717 INFO L471 AbstractCegarLoop]: Abstraction has 833 states and 1050 transitions. [2024-11-28 02:57:54,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 02:57:54,718 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1050 transitions. [2024-11-28 02:57:54,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 02:57:54,719 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:54,720 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:54,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:57:54,720 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:54,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:54,721 INFO L85 PathProgramCache]: Analyzing trace with hash -2042645348, now seen corresponding path program 1 times [2024-11-28 02:57:54,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:54,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325588734] [2024-11-28 02:57:54,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:54,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:56,743 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-28 02:57:56,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:56,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325588734] [2024-11-28 02:57:56,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325588734] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:57:56,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925853388] [2024-11-28 02:57:56,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:56,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:57:56,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:57:56,747 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:57:56,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:57:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:59,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 1760 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:57:59,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:58:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-28 02:58:00,057 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:58:01,001 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-28 02:58:01,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925853388] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:58:01,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:58:01,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 7] total 13 [2024-11-28 02:58:01,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63522664] [2024-11-28 02:58:01,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:58:01,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:58:01,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:58:01,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:58:01,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:58:01,004 INFO L87 Difference]: Start difference. First operand 833 states and 1050 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 02:58:05,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:58:07,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:07,044 INFO L93 Difference]: Finished difference Result 2258 states and 2841 transitions. [2024-11-28 02:58:07,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:58:07,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 113 [2024-11-28 02:58:07,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:07,059 INFO L225 Difference]: With dead ends: 2258 [2024-11-28 02:58:07,059 INFO L226 Difference]: Without dead ends: 1794 [2024-11-28 02:58:07,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 215 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:58:07,062 INFO L435 NwaCegarLoop]: 290 mSDtfsCounter, 615 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 125 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:07,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 893 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 376 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2024-11-28 02:58:07,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2024-11-28 02:58:07,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1679. [2024-11-28 02:58:07,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1340 states have (on average 1.2186567164179105) internal successors, (1633), 1343 states have internal predecessors, (1633), 214 states have call successors, (214), 102 states have call predecessors, (214), 124 states have return successors, (279), 233 states have call predecessors, (279), 208 states have call successors, (279) [2024-11-28 02:58:07,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2126 transitions. [2024-11-28 02:58:07,165 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2126 transitions. Word has length 113 [2024-11-28 02:58:07,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:07,167 INFO L471 AbstractCegarLoop]: Abstraction has 1679 states and 2126 transitions. [2024-11-28 02:58:07,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 02:58:07,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2126 transitions. [2024-11-28 02:58:07,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 02:58:07,171 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:07,171 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:58:07,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:58:07,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 02:58:07,372 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:58:07,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:07,373 INFO L85 PathProgramCache]: Analyzing trace with hash 854107953, now seen corresponding path program 1 times [2024-11-28 02:58:07,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:58:07,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153121791] [2024-11-28 02:58:07,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:07,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:58:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:10,497 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 02:58:10,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:58:10,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153121791] [2024-11-28 02:58:10,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153121791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:58:10,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:58:10,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:58:10,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997111702] [2024-11-28 02:58:10,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:58:10,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:58:10,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:58:10,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:58:10,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:58:10,500 INFO L87 Difference]: Start difference. First operand 1679 states and 2126 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:58:10,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:10,597 INFO L93 Difference]: Finished difference Result 2384 states and 3015 transitions. [2024-11-28 02:58:10,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:58:10,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 136 [2024-11-28 02:58:10,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:10,605 INFO L225 Difference]: With dead ends: 2384 [2024-11-28 02:58:10,606 INFO L226 Difference]: Without dead ends: 909 [2024-11-28 02:58:10,610 INFO L434 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 [2024-11-28 02:58:10,611 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 0 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:10,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 693 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:58:10,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-11-28 02:58:10,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 909. [2024-11-28 02:58:10,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 724 states have (on average 1.2085635359116023) internal successors, (875), 725 states have internal predecessors, (875), 116 states have call successors, (116), 57 states have call predecessors, (116), 68 states have return successors, (149), 126 states have call predecessors, (149), 111 states have call successors, (149) [2024-11-28 02:58:10,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1140 transitions. [2024-11-28 02:58:10,661 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1140 transitions. Word has length 136 [2024-11-28 02:58:10,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:10,661 INFO L471 AbstractCegarLoop]: Abstraction has 909 states and 1140 transitions. [2024-11-28 02:58:10,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:58:10,662 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1140 transitions. [2024-11-28 02:58:10,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 02:58:10,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:10,665 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:58:10,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:58:10,665 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:58:10,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:10,666 INFO L85 PathProgramCache]: Analyzing trace with hash 686084400, now seen corresponding path program 1 times [2024-11-28 02:58:10,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:58:10,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850150530] [2024-11-28 02:58:10,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:10,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:58:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 02:58:13,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:58:13,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850150530] [2024-11-28 02:58:13,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850150530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:58:13,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:58:13,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:58:13,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924798951] [2024-11-28 02:58:13,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:58:13,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:58:13,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:58:13,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:58:13,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:58:13,072 INFO L87 Difference]: Start difference. First operand 909 states and 1140 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 02:58:17,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:58:17,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:17,614 INFO L93 Difference]: Finished difference Result 1462 states and 1835 transitions. [2024-11-28 02:58:17,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:58:17,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 136 [2024-11-28 02:58:17,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:17,627 INFO L225 Difference]: With dead ends: 1462 [2024-11-28 02:58:17,627 INFO L226 Difference]: Without dead ends: 1457 [2024-11-28 02:58:17,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:58:17,630 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 212 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:17,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 654 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 02:58:17,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-11-28 02:58:17,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1421. [2024-11-28 02:58:17,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1133 states have (on average 1.2056487202118271) internal successors, (1366), 1130 states have internal predecessors, (1366), 180 states have call successors, (180), 87 states have call predecessors, (180), 107 states have return successors, (245), 203 states have call predecessors, (245), 175 states have call successors, (245) [2024-11-28 02:58:17,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 1791 transitions. [2024-11-28 02:58:17,753 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 1791 transitions. Word has length 136 [2024-11-28 02:58:17,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:17,753 INFO L471 AbstractCegarLoop]: Abstraction has 1421 states and 1791 transitions. [2024-11-28 02:58:17,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 02:58:17,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 1791 transitions. [2024-11-28 02:58:17,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 02:58:17,758 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:17,758 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:58:17,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:58:17,758 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:58:17,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:17,759 INFO L85 PathProgramCache]: Analyzing trace with hash 572060484, now seen corresponding path program 1 times [2024-11-28 02:58:17,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:58:17,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6038468] [2024-11-28 02:58:17,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:17,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:58:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:19,430 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-28 02:58:19,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:58:19,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6038468] [2024-11-28 02:58:19,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6038468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:58:19,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:58:19,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:58:19,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277357362] [2024-11-28 02:58:19,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:58:19,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:58:19,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:58:19,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:58:19,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:58:19,433 INFO L87 Difference]: Start difference. First operand 1421 states and 1791 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 02:58:19,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:19,573 INFO L93 Difference]: Finished difference Result 1465 states and 1837 transitions. [2024-11-28 02:58:19,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:58:19,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 150 [2024-11-28 02:58:19,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:19,588 INFO L225 Difference]: With dead ends: 1465 [2024-11-28 02:58:19,588 INFO L226 Difference]: Without dead ends: 1446 [2024-11-28 02:58:19,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:58:19,590 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 230 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:19,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 505 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:58:19,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2024-11-28 02:58:19,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1427. [2024-11-28 02:58:19,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1139 states have (on average 1.2010535557506585) internal successors, (1368), 1136 states have internal predecessors, (1368), 180 states have call successors, (180), 87 states have call predecessors, (180), 107 states have return successors, (245), 203 states have call predecessors, (245), 175 states have call successors, (245) [2024-11-28 02:58:19,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 1793 transitions. [2024-11-28 02:58:19,685 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 1793 transitions. Word has length 150 [2024-11-28 02:58:19,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:19,687 INFO L471 AbstractCegarLoop]: Abstraction has 1427 states and 1793 transitions. [2024-11-28 02:58:19,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 02:58:19,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 1793 transitions. [2024-11-28 02:58:19,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 02:58:19,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:19,690 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:58:19,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 02:58:19,690 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:58:19,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:19,690 INFO L85 PathProgramCache]: Analyzing trace with hash -984997408, now seen corresponding path program 1 times [2024-11-28 02:58:19,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:58:19,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618356675] [2024-11-28 02:58:19,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:19,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:58:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:21,998 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-28 02:58:21,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:58:21,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618356675] [2024-11-28 02:58:21,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618356675] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:58:21,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483958919] [2024-11-28 02:58:21,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:21,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:58:22,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:58:22,002 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:58:22,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:58:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:24,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 2370 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:58:24,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:58:25,037 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-28 02:58:25,037 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:58:25,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483958919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:58:25,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:58:25,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-28 02:58:25,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196445934] [2024-11-28 02:58:25,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:58:25,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:58:25,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:58:25,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:58:25,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:58:25,042 INFO L87 Difference]: Start difference. First operand 1427 states and 1793 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-28 02:58:25,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:25,242 INFO L93 Difference]: Finished difference Result 1956 states and 2450 transitions. [2024-11-28 02:58:25,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:58:25,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 153 [2024-11-28 02:58:25,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:25,251 INFO L225 Difference]: With dead ends: 1956 [2024-11-28 02:58:25,251 INFO L226 Difference]: Without dead ends: 717 [2024-11-28 02:58:25,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:58:25,257 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 68 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:25,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 444 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:58:25,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2024-11-28 02:58:25,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 711. [2024-11-28 02:58:25,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 564 states have (on average 1.1861702127659575) internal successors, (669), 565 states have internal predecessors, (669), 89 states have call successors, (89), 50 states have call predecessors, (89), 57 states have return successors, (110), 95 states have call predecessors, (110), 85 states have call successors, (110) [2024-11-28 02:58:25,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 868 transitions. [2024-11-28 02:58:25,319 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 868 transitions. Word has length 153 [2024-11-28 02:58:25,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:25,319 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 868 transitions. [2024-11-28 02:58:25,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-28 02:58:25,320 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 868 transitions. [2024-11-28 02:58:25,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 02:58:25,323 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:25,323 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:58:25,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:58:25,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:58:25,524 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:58:25,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:25,526 INFO L85 PathProgramCache]: Analyzing trace with hash 2055193825, now seen corresponding path program 1 times [2024-11-28 02:58:25,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:58:25,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570123664] [2024-11-28 02:58:25,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:25,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:58:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:27,389 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 02:58:27,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:58:27,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570123664] [2024-11-28 02:58:27,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570123664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:58:27,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:58:27,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:58:27,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338982649] [2024-11-28 02:58:27,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:58:27,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:58:27,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:58:27,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:58:27,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:58:27,392 INFO L87 Difference]: Start difference. First operand 711 states and 868 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:58:27,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:27,428 INFO L93 Difference]: Finished difference Result 983 states and 1202 transitions. [2024-11-28 02:58:27,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:58:27,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 165 [2024-11-28 02:58:27,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:27,433 INFO L225 Difference]: With dead ends: 983 [2024-11-28 02:58:27,433 INFO L226 Difference]: Without dead ends: 453 [2024-11-28 02:58:27,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:58:27,439 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:27,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 458 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:58:27,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-28 02:58:27,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2024-11-28 02:58:27,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 360 states have (on average 1.175) internal successors, (423), 361 states have internal predecessors, (423), 57 states have call successors, (57), 33 states have call predecessors, (57), 35 states have return successors, (63), 58 states have call predecessors, (63), 53 states have call successors, (63) [2024-11-28 02:58:27,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 543 transitions. [2024-11-28 02:58:27,468 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 543 transitions. Word has length 165 [2024-11-28 02:58:27,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:27,469 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 543 transitions. [2024-11-28 02:58:27,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:58:27,469 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 543 transitions. [2024-11-28 02:58:27,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-28 02:58:27,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:27,471 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-28 02:58:27,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 02:58:27,471 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:58:27,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:27,473 INFO L85 PathProgramCache]: Analyzing trace with hash 791184156, now seen corresponding path program 1 times [2024-11-28 02:58:27,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:58:27,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425807879] [2024-11-28 02:58:27,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:27,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:58:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:29,178 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 02:58:29,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:58:29,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425807879] [2024-11-28 02:58:29,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425807879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:58:29,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722573069] [2024-11-28 02:58:29,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:29,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:58:29,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:58:29,181 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:58:29,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:58:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:32,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 2405 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:58:32,100 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:58:33,247 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 02:58:33,247 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:58:33,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722573069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:58:33,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:58:33,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 10 [2024-11-28 02:58:33,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665762802] [2024-11-28 02:58:33,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:58:33,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:58:33,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:58:33,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:58:33,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:58:33,250 INFO L87 Difference]: Start difference. First operand 453 states and 543 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-28 02:58:37,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:58:41,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:58:45,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:58:46,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:46,628 INFO L93 Difference]: Finished difference Result 465 states and 552 transitions. [2024-11-28 02:58:46,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:58:46,629 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 167 [2024-11-28 02:58:46,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:46,633 INFO L225 Difference]: With dead ends: 465 [2024-11-28 02:58:46,633 INFO L226 Difference]: Without dead ends: 415 [2024-11-28 02:58:46,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:58:46,636 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 273 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 76 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:46,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 378 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 315 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2024-11-28 02:58:46,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-28 02:58:46,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 410. [2024-11-28 02:58:46,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 325 states have (on average 1.1753846153846155) internal successors, (382), 329 states have internal predecessors, (382), 52 states have call successors, (52), 32 states have call predecessors, (52), 32 states have return successors, (51), 48 states have call predecessors, (51), 48 states have call successors, (51) [2024-11-28 02:58:46,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 485 transitions. [2024-11-28 02:58:46,666 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 485 transitions. Word has length 167 [2024-11-28 02:58:46,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:46,666 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 485 transitions. [2024-11-28 02:58:46,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-28 02:58:46,667 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 485 transitions. [2024-11-28 02:58:46,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-28 02:58:46,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:46,671 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:58:46,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 02:58:46,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 02:58:46,872 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:58:46,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:46,873 INFO L85 PathProgramCache]: Analyzing trace with hash -628377753, now seen corresponding path program 1 times [2024-11-28 02:58:46,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:58:46,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968199879] [2024-11-28 02:58:46,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:46,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:58:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:48,794 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-28 02:58:48,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:58:48,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968199879] [2024-11-28 02:58:48,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968199879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:58:48,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26315491] [2024-11-28 02:58:48,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:48,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:58:48,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:58:48,800 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:58:48,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:58:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:51,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 2550 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:58:51,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:58:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 02:58:51,719 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:58:51,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26315491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:58:51,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:58:51,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2024-11-28 02:58:51,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935679808] [2024-11-28 02:58:51,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:58:51,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:58:51,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:58:51,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:58:51,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:58:51,721 INFO L87 Difference]: Start difference. First operand 410 states and 485 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 02:58:55,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:58:55,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:55,871 INFO L93 Difference]: Finished difference Result 419 states and 492 transitions. [2024-11-28 02:58:55,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:58:55,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 194 [2024-11-28 02:58:55,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:55,875 INFO L225 Difference]: With dead ends: 419 [2024-11-28 02:58:55,875 INFO L226 Difference]: Without dead ends: 363 [2024-11-28 02:58:55,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:58:55,878 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 77 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:55,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 757 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 02:58:55,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-28 02:58:55,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 361. [2024-11-28 02:58:55,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 289 states have (on average 1.1764705882352942) internal successors, (340), 291 states have internal predecessors, (340), 43 states have call successors, (43), 28 states have call predecessors, (43), 28 states have return successors, (42), 41 states have call predecessors, (42), 40 states have call successors, (42) [2024-11-28 02:58:55,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 425 transitions. [2024-11-28 02:58:55,904 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 425 transitions. Word has length 194 [2024-11-28 02:58:55,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:55,905 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 425 transitions. [2024-11-28 02:58:55,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 02:58:55,905 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 425 transitions. [2024-11-28 02:58:55,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-28 02:58:55,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:55,910 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:58:55,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 02:58:56,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 02:58:56,111 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:58:56,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:56,112 INFO L85 PathProgramCache]: Analyzing trace with hash 701477126, now seen corresponding path program 1 times [2024-11-28 02:58:56,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:58:56,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046923910] [2024-11-28 02:58:56,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:56,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:58:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:58,125 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-11-28 02:58:58,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:58:58,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046923910] [2024-11-28 02:58:58,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046923910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:58:58,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:58:58,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:58:58,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982760609] [2024-11-28 02:58:58,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:58:58,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:58:58,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:58:58,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:58:58,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:58:58,127 INFO L87 Difference]: Start difference. First operand 361 states and 425 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 4 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-28 02:59:02,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:59:02,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:02,263 INFO L93 Difference]: Finished difference Result 363 states and 426 transitions. [2024-11-28 02:59:02,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:59:02,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 4 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 266 [2024-11-28 02:59:02,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:02,267 INFO L225 Difference]: With dead ends: 363 [2024-11-28 02:59:02,267 INFO L226 Difference]: Without dead ends: 348 [2024-11-28 02:59:02,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:59:02,269 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 187 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:02,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 269 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 02:59:02,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-28 02:59:02,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 342. [2024-11-28 02:59:02,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 275 states have (on average 1.1745454545454546) internal successors, (323), 277 states have internal predecessors, (323), 40 states have call successors, (40), 27 states have call predecessors, (40), 26 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 02:59:02,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 401 transitions. [2024-11-28 02:59:02,293 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 401 transitions. Word has length 266 [2024-11-28 02:59:02,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:02,294 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 401 transitions. [2024-11-28 02:59:02,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 4 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-28 02:59:02,294 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 401 transitions. [2024-11-28 02:59:02,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-11-28 02:59:02,300 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:02,300 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:02,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 02:59:02,301 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:59:02,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:02,301 INFO L85 PathProgramCache]: Analyzing trace with hash -975408885, now seen corresponding path program 1 times [2024-11-28 02:59:02,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:02,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807732767] [2024-11-28 02:59:02,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:02,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:04,218 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-11-28 02:59:04,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:04,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807732767] [2024-11-28 02:59:04,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807732767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:04,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:04,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:59:04,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652012611] [2024-11-28 02:59:04,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:04,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:59:04,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:04,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:59:04,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:59:04,220 INFO L87 Difference]: Start difference. First operand 342 states and 401 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 4 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-28 02:59:08,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:59:08,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:08,446 INFO L93 Difference]: Finished difference Result 342 states and 401 transitions. [2024-11-28 02:59:08,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:59:08,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 4 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 311 [2024-11-28 02:59:08,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:08,449 INFO L225 Difference]: With dead ends: 342 [2024-11-28 02:59:08,449 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:59:08,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:59:08,451 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 198 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:08,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 267 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 02:59:08,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:59:08,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:59:08,452 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) [2024-11-28 02:59:08,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:59:08,454 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 311 [2024-11-28 02:59:08,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:08,454 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:59:08,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 4 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-28 02:59:08,454 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:59:08,455 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:59:08,458 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:59:08,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 02:59:08,464 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:08,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 02:59:14,428 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:59:14,447 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_s_kbtab_driver_usb_driver~0 [2024-11-28 02:59:14,448 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~error~0 [2024-11-28 02:59:14,449 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_s_kbtab_driver_usb_driver~0 [2024-11-28 02:59:14,449 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~error~0 [2024-11-28 02:59:14,449 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_s_kbtab_driver_usb_driver~0 [2024-11-28 02:59:14,450 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~error~0 [2024-11-28 02:59:14,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:59:14 BoogieIcfgContainer [2024-11-28 02:59:14,451 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:59:14,452 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:59:14,452 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:59:14,453 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:59:14,454 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:56" (3/4) ... [2024-11-28 02:59:14,457 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:59:14,464 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kbtab_init [2024-11-28 02:59:14,465 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure dev_get_drvdata [2024-11-28 02:59:14,465 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2024-11-28 02:59:14,465 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_set_intfdata [2024-11-28 02:59:14,465 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undefined_pointer [2024-11-28 02:59:14,465 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-11-28 02:59:14,465 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_free_urb [2024-11-28 02:59:14,465 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure input_set_abs_params [2024-11-28 02:59:14,465 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kbtab_exit [2024-11-28 02:59:14,466 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-28 02:59:14,466 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2024-11-28 02:59:14,466 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_assume_stop [2024-11-28 02:59:14,466 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_free_coherent [2024-11-28 02:59:14,466 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_blast_assert [2024-11-28 02:59:14,467 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure dev_set_drvdata [2024-11-28 02:59:14,490 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 69 nodes and edges [2024-11-28 02:59:14,494 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-28 02:59:14,496 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-28 02:59:14,499 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 02:59:14,500 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:59:14,502 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:59:14,550 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= \old(ldv_coherent_state)) && (ldv_urb_state == 0)) && (ldv_coherent_state == 1)) && (\old(ldv_coherent_state) <= 1)) [2024-11-28 02:59:14,554 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\old(ldv_urb_state) <= 1) && (1 <= ldv_coherent_state)) && (0 == res_kbtab_probe_3)) && (1 <= \old(ldv_urb_state))) && (ldv_urb_state == 1)) && (ldv_coherent_state <= 1)) [2024-11-28 02:59:14,872 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= \old(ldv_coherent_state)) && (ldv_urb_state == 0)) && (ldv_coherent_state == 1)) && (\old(ldv_coherent_state) <= 1)) [2024-11-28 02:59:14,873 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\old(ldv_urb_state) <= 1) && (1 <= ldv_coherent_state)) && (0 == res_kbtab_probe_3)) && (1 <= \old(ldv_urb_state))) && (ldv_urb_state == 1)) && (ldv_coherent_state <= 1)) [2024-11-28 02:59:14,945 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:59:14,946 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:59:14,946 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:59:14,946 INFO L158 Benchmark]: Toolchain (without parser) took 147460.15ms. Allocated memory was 142.6MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 114.1MB in the beginning and 914.1MB in the end (delta: -799.9MB). Peak memory consumption was 641.7MB. Max. memory is 16.1GB. [2024-11-28 02:59:14,947 INFO L158 Benchmark]: CDTParser took 1.39ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:59:14,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1704.11ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 88.0MB in the end (delta: 26.1MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. [2024-11-28 02:59:14,948 INFO L158 Benchmark]: Boogie Procedure Inliner took 162.55ms. Allocated memory is still 142.6MB. Free memory was 88.0MB in the beginning and 82.0MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:59:14,949 INFO L158 Benchmark]: Boogie Preprocessor took 247.42ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 65.8MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:59:14,949 INFO L158 Benchmark]: RCFGBuilder took 7000.74ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 65.8MB in the beginning and 231.5MB in the end (delta: -165.8MB). Peak memory consumption was 118.3MB. Max. memory is 16.1GB. [2024-11-28 02:59:14,949 INFO L158 Benchmark]: TraceAbstraction took 137839.84ms. Allocated memory was 427.8MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 230.8MB in the beginning and 943.2MB in the end (delta: -712.4MB). Peak memory consumption was 443.9MB. Max. memory is 16.1GB. [2024-11-28 02:59:14,950 INFO L158 Benchmark]: Witness Printer took 493.65ms. Allocated memory is still 1.6GB. Free memory was 943.2MB in the beginning and 914.1MB in the end (delta: 29.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:59:14,951 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1704.11ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 88.0MB in the end (delta: 26.1MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 162.55ms. Allocated memory is still 142.6MB. Free memory was 88.0MB in the beginning and 82.0MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 247.42ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 65.8MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 7000.74ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 65.8MB in the beginning and 231.5MB in the end (delta: -165.8MB). Peak memory consumption was 118.3MB. Max. memory is 16.1GB. * TraceAbstraction took 137839.84ms. Allocated memory was 427.8MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 230.8MB in the beginning and 943.2MB in the end (delta: -712.4MB). Peak memory consumption was 443.9MB. Max. memory is 16.1GB. * Witness Printer took 493.65ms. Allocated memory is still 1.6GB. Free memory was 943.2MB in the beginning and 914.1MB in the end (delta: 29.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_s_kbtab_driver_usb_driver~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~error~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_s_kbtab_driver_usb_driver~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~error~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_s_kbtab_driver_usb_driver~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~error~0 * 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 - PositiveResult [Line: 4049]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 202 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 131.7s, OverallIterations: 24, TraceHistogramMax: 9, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 48.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 2875 SdHoareTripleChecker+Valid, 46.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2826 mSDsluCounter, 21019 SdHoareTripleChecker+Invalid, 45.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15158 mSDsCounter, 240 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1348 IncrementalHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 240 mSolverCounterUnsat, 5861 mSDtfsCounter, 1348 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1231 GetRequests, 1120 SyntacticMatches, 2 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1679occurred in iteration=15, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 24 MinimizatonAttempts, 294 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.4s SsaConstructionTime, 4.0s SatisfiabilityAnalysisTime, 22.0s InterpolantComputationTime, 3802 NumberOfCodeBlocks, 3772 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 3972 ConstructedInterpolants, 0 QuantifiedInterpolants, 6306 SizeOfPredicates, 4 NumberOfNonLiveVariables, 14003 ConjunctsInSsa, 127 ConjunctsInUnsatCore, 33 InterpolantComputations, 23 PerfectInterpolantSequences, 1583/1670 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 3981]: Location Invariant Derived location invariant: (((((0 == res_kbtab_probe_3) && (1 <= ldv_s_kbtab_driver_usb_driver)) && (ldv_coherent_state == 1)) && (ldv_urb_state == 1)) || ((((ldv_coherent_state == 0) && (0 == res_kbtab_probe_3)) && (ldv_urb_state == 0)) && (ldv_s_kbtab_driver_usb_driver == 0))) - InvariantResult [Line: 4156]: Loop Invariant Derived loop invariant: ((((((\old(ldv_urb_state) <= 1) && (1 <= ldv_coherent_state)) && (0 == res_kbtab_probe_3)) && (1 <= \old(ldv_urb_state))) && (ldv_urb_state == 1)) && (ldv_coherent_state <= 1)) - InvariantResult [Line: 4073]: Loop Invariant Derived loop invariant: (((ldv_coherent_state == 0) && (0 == res_kbtab_probe_3)) && (ldv_urb_state == 0)) - InvariantResult [Line: 4130]: Loop Invariant Derived loop invariant: (((0 == res_kbtab_probe_3) && (ldv_urb_state == 0)) && (ldv_coherent_state == 1)) - InvariantResult [Line: 3454]: Loop Invariant Derived loop invariant: (((0 == res_kbtab_probe_3) && (ldv_coherent_state == 1)) && (ldv_urb_state == 1)) - InvariantResult [Line: 4099]: Loop Invariant Derived loop invariant: ((((1 <= \old(ldv_coherent_state)) && (ldv_urb_state == 0)) && (ldv_coherent_state == 1)) && (\old(ldv_coherent_state) <= 1)) - InvariantResult [Line: 3968]: Location Invariant Derived location invariant: ((ldv_coherent_state == 0) && (ldv_urb_state == 0)) RESULT: Ultimate proved your program to be correct! [2024-11-28 02:59:15,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93f4bb9-d71a-497d-a5bb-f98943ae006b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE