./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/bin/uautomizer-verify-uCwYo4JHxu --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 854a4ccfd5301563e0d21e019793cd1524b69bffdbb690df8c24a487a54bad7c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:35:55,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:35:55,713 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:35:55,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:35:55,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:35:55,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:35:55,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:35:55,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:35:55,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:35:55,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:35:55,775 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:35:55,776 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:35:55,776 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:35:55,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:35:55,779 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:35:55,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:35:55,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:35:55,780 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:35:55,780 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:35:55,781 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:35:55,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:35:55,782 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:35:55,783 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:35:55,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:35:55,784 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:35:55,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:35:55,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:35:55,785 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:35:55,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:35:55,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:35:55,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:35:55,788 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:35:55,792 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:35:55,793 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:35:55,793 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:35:55,793 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:35:55,794 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 854a4ccfd5301563e0d21e019793cd1524b69bffdbb690df8c24a487a54bad7c [2023-11-19 07:35:56,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:35:56,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:35:56,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:35:56,129 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:35:56,130 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:35:56,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389.i [2023-11-19 07:35:59,170 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:35:59,849 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:35:59,850 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389.i [2023-11-19 07:35:59,909 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/bin/uautomizer-verify-uCwYo4JHxu/data/95f2d82b9/9493993cdb844a2384ddebc3f12289bf/FLAGcc6756d75 [2023-11-19 07:35:59,927 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/bin/uautomizer-verify-uCwYo4JHxu/data/95f2d82b9/9493993cdb844a2384ddebc3f12289bf [2023-11-19 07:35:59,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:35:59,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:35:59,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:59,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:35:59,939 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:35:59,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:59" (1/1) ... [2023-11-19 07:35:59,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19feddc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:59, skipping insertion in model container [2023-11-19 07:35:59,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:59" (1/1) ... [2023-11-19 07:36:00,090 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:36:01,904 WARN L240 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_457245fd-0f12-457d-849f-8e993eee6161/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389.i[220073,220086] [2023-11-19 07:36:02,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:02,081 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:36:02,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; incl %0": "+m" (v->counter)); [5048] [2023-11-19 07:36:02,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; decl %0": "+m" (v->counter)); [5055] [2023-11-19 07:36:02,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5224] [2023-11-19 07:36:02,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [5231] [2023-11-19 07:36:02,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5238] [2023-11-19 07:36:02,408 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)__sd->list.next) [6182] [2023-11-19 07:36:02,506 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)__sd->list.next) [6288] [2023-11-19 07:36:02,614 WARN L240 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_457245fd-0f12-457d-849f-8e993eee6161/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389.i[220073,220086] [2023-11-19 07:36:02,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:02,789 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:36:02,789 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:36:02,797 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:36:02,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:02 WrapperNode [2023-11-19 07:36:02,798 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:02,799 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:02,799 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:36:02,800 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:36:02,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:02" (1/1) ... [2023-11-19 07:36:02,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:02" (1/1) ... [2023-11-19 07:36:03,039 INFO L138 Inliner]: procedures = 228, calls = 1718, calls flagged for inlining = 120, calls inlined = 112, statements flattened = 3977 [2023-11-19 07:36:03,039 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:03,040 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:36:03,040 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:36:03,040 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:36:03,049 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:02" (1/1) ... [2023-11-19 07:36:03,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:02" (1/1) ... [2023-11-19 07:36:03,106 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:02" (1/1) ... [2023-11-19 07:36:03,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:02" (1/1) ... [2023-11-19 07:36:03,356 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:02" (1/1) ... [2023-11-19 07:36:03,388 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:02" (1/1) ... [2023-11-19 07:36:03,433 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:02" (1/1) ... [2023-11-19 07:36:03,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:02" (1/1) ... [2023-11-19 07:36:03,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:36:03,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:36:03,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:36:03,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:36:03,494 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:02" (1/1) ... [2023-11-19 07:36:03,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:03,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:03,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:36:03,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457245fd-0f12-457d-849f-8e993eee6161/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:36:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:36:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:36:03,589 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 07:36:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 07:36:03,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:36:03,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:36:03,592 INFO L130 BoogieDeclarations]: Found specification of procedure blackbird_initialize_codec [2023-11-19 07:36:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure blackbird_initialize_codec [2023-11-19 07:36:03,592 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvnorm [2023-11-19 07:36:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvnorm [2023-11-19 07:36:03,592 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_blackbird_advise_acquire [2023-11-19 07:36:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_blackbird_advise_acquire [2023-11-19 07:36:03,593 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:36:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:36:03,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:36:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:36:03,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-19 07:36:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-19 07:36:03,594 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-19 07:36:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-19 07:36:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 07:36:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 07:36:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_scale [2023-11-19 07:36:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_scale [2023-11-19 07:36:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 07:36:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 07:36:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_next [2023-11-19 07:36:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_next [2023-11-19 07:36:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_va_arg [2023-11-19 07:36:03,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_va_arg [2023-11-19 07:36:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure memory_read [2023-11-19 07:36:03,599 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_read [2023-11-19 07:36:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:36:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 07:36:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure cx2341x_update [2023-11-19 07:36:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure cx2341x_update [2023-11-19 07:36:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:36:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure register_read [2023-11-19 07:36:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure register_read [2023-11-19 07:36:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_blackbird_advise_release [2023-11-19 07:36:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_blackbird_advise_release [2023-11-19 07:36:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:36:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure cx2341x_ext_ctrls [2023-11-19 07:36:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure cx2341x_ext_ctrls [2023-11-19 07:36:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 07:36:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 07:36:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_get_driver [2023-11-19 07:36:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_get_driver [2023-11-19 07:36:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2023-11-19 07:36:03,603 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2023-11-19 07:36:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure register_write [2023-11-19 07:36:03,603 INFO L138 BoogieDeclarations]: Found implementation of procedure register_write [2023-11-19 07:36:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure blackbird_start_codec [2023-11-19 07:36:03,604 INFO L138 BoogieDeclarations]: Found implementation of procedure blackbird_start_codec [2023-11-19 07:36:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:36:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:36:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:36:03,604 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:36:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2023-11-19 07:36:03,605 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2023-11-19 07:36:03,605 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_blackbird_remove [2023-11-19 07:36:03,606 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_blackbird_remove [2023-11-19 07:36:03,606 INFO L130 BoogieDeclarations]: Found specification of procedure memory_write [2023-11-19 07:36:03,607 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_write [2023-11-19 07:36:03,607 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-19 07:36:03,607 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-19 07:36:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-19 07:36:03,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-19 07:36:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure blackbird_queryctrl [2023-11-19 07:36:03,608 INFO L138 BoogieDeclarations]: Found implementation of procedure blackbird_queryctrl [2023-11-19 07:36:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:36:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:36:03,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_cx88_core [2023-11-19 07:36:03,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_cx88_core [2023-11-19 07:36:03,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_cx88_core [2023-11-19 07:36:03,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_cx88_core [2023-11-19 07:36:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_video_mux [2023-11-19 07:36:03,610 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_video_mux [2023-11-19 07:36:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:36:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:36:03,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:36:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure mpeg_open [2023-11-19 07:36:03,611 INFO L138 BoogieDeclarations]: Found implementation of procedure mpeg_open [2023-11-19 07:36:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:36:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure blackbird_stop_codec [2023-11-19 07:36:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure blackbird_stop_codec [2023-11-19 07:36:03,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:36:03,612 INFO L130 BoogieDeclarations]: Found specification of procedure mpeg_release [2023-11-19 07:36:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure mpeg_release [2023-11-19 07:36:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 07:36:03,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 07:36:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:36:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_log_status [2023-11-19 07:36:03,613 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_log_status [2023-11-19 07:36:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure mpeg_poll [2023-11-19 07:36:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure mpeg_poll [2023-11-19 07:36:03,614 INFO L130 BoogieDeclarations]: Found specification of procedure wait_ready_gpio0_bit1 [2023-11-19 07:36:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_ready_gpio0_bit1 [2023-11-19 07:36:03,614 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_blackbird_probe [2023-11-19 07:36:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_blackbird_probe [2023-11-19 07:36:03,615 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_ctrl_query [2023-11-19 07:36:03,615 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_ctrl_query [2023-11-19 07:36:03,615 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-19 07:36:03,615 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-19 07:36:03,615 INFO L130 BoogieDeclarations]: Found specification of procedure blackbird_api_cmd [2023-11-19 07:36:03,616 INFO L138 BoogieDeclarations]: Found implementation of procedure blackbird_api_cmd [2023-11-19 07:36:03,616 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-11-19 07:36:03,616 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-11-19 07:36:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 07:36:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 07:36:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure mpeg_mmap [2023-11-19 07:36:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure mpeg_mmap [2023-11-19 07:36:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 07:36:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 07:36:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:36:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-11-19 07:36:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-11-19 07:36:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:36:03,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:36:04,524 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:36:04,527 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:36:18,319 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:36:18,338 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:36:18,338 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:36:18,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:18 BoogieIcfgContainer [2023-11-19 07:36:18,349 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:36:18,351 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:36:18,351 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:36:18,355 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:36:18,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:35:59" (1/3) ... [2023-11-19 07:36:18,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea0523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:18, skipping insertion in model container [2023-11-19 07:36:18,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:02" (2/3) ... [2023-11-19 07:36:18,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea0523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:18, skipping insertion in model container [2023-11-19 07:36:18,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:18" (3/3) ... [2023-11-19 07:36:18,358 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389.i [2023-11-19 07:36:18,378 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:36:18,378 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:36:18,465 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:36:18,473 INFO L357 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, mHoare=true, 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;@75ee6f2f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:36:18,473 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:36:18,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 1166 states, 803 states have (on average 1.2889165628891657) internal successors, (1035), 813 states have internal predecessors, (1035), 309 states have call successors, (309), 52 states have call predecessors, (309), 52 states have return successors, (309), 309 states have call predecessors, (309), 309 states have call successors, (309) [2023-11-19 07:36:18,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 07:36:18,493 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:18,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:18,494 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:18,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:18,499 INFO L85 PathProgramCache]: Analyzing trace with hash -594404525, now seen corresponding path program 1 times [2023-11-19 07:36:18,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:18,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751673519] [2023-11-19 07:36:18,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:18,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:19,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:36:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:19,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:36:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:36:19,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:19,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751673519] [2023-11-19 07:36:19,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751673519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:19,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:19,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:19,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720903114] [2023-11-19 07:36:19,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:19,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:19,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:19,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:19,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:19,344 INFO L87 Difference]: Start difference. First operand has 1166 states, 803 states have (on average 1.2889165628891657) internal successors, (1035), 813 states have internal predecessors, (1035), 309 states have call successors, (309), 52 states have call predecessors, (309), 52 states have return successors, (309), 309 states have call predecessors, (309), 309 states have call successors, (309) 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:36:19,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:19,682 INFO L93 Difference]: Finished difference Result 2749 states and 3974 transitions. [2023-11-19 07:36:19,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:19,685 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-19 07:36:19,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:19,713 INFO L225 Difference]: With dead ends: 2749 [2023-11-19 07:36:19,713 INFO L226 Difference]: Without dead ends: 1589 [2023-11-19 07:36:19,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:19,732 INFO L413 NwaCegarLoop]: 1636 mSDtfsCounter, 1499 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:19,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 2360 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:36:19,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2023-11-19 07:36:19,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1587. [2023-11-19 07:36:19,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1088 states have (on average 1.2748161764705883) internal successors, (1387), 1096 states have internal predecessors, (1387), 425 states have call successors, (425), 74 states have call predecessors, (425), 73 states have return successors, (421), 421 states have call predecessors, (421), 421 states have call successors, (421) [2023-11-19 07:36:19,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2233 transitions. [2023-11-19 07:36:19,976 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2233 transitions. Word has length 19 [2023-11-19 07:36:19,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:19,977 INFO L495 AbstractCegarLoop]: Abstraction has 1587 states and 2233 transitions. [2023-11-19 07:36:19,977 INFO L496 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:36:19,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2233 transitions. [2023-11-19 07:36:19,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 07:36:19,979 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:19,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:19,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:36:19,979 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:19,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:19,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1247283219, now seen corresponding path program 1 times [2023-11-19 07:36:19,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:19,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537097554] [2023-11-19 07:36:19,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:19,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:20,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:36:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:20,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:36:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:20,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:36:20,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:20,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537097554] [2023-11-19 07:36:20,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537097554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:20,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:20,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:20,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965728070] [2023-11-19 07:36:20,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:20,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:20,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:20,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:20,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:20,426 INFO L87 Difference]: Start difference. First operand 1587 states and 2233 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:36:20,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:20,582 INFO L93 Difference]: Finished difference Result 1589 states and 2234 transitions. [2023-11-19 07:36:20,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:20,583 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-19 07:36:20,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:20,597 INFO L225 Difference]: With dead ends: 1589 [2023-11-19 07:36:20,597 INFO L226 Difference]: Without dead ends: 1586 [2023-11-19 07:36:20,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:20,603 INFO L413 NwaCegarLoop]: 1626 mSDtfsCounter, 1615 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:20,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 1626 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:36:20,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2023-11-19 07:36:20,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2023-11-19 07:36:20,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1088 states have (on average 1.2738970588235294) internal successors, (1386), 1095 states have internal predecessors, (1386), 424 states have call successors, (424), 74 states have call predecessors, (424), 73 states have return successors, (421), 421 states have call predecessors, (421), 421 states have call successors, (421) [2023-11-19 07:36:20,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2231 transitions. [2023-11-19 07:36:20,755 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2231 transitions. Word has length 20 [2023-11-19 07:36:20,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:20,756 INFO L495 AbstractCegarLoop]: Abstraction has 1586 states and 2231 transitions. [2023-11-19 07:36:20,756 INFO L496 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:36:20,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2231 transitions. [2023-11-19 07:36:20,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 07:36:20,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:20,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:20,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:36:20,758 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:20,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:20,758 INFO L85 PathProgramCache]: Analyzing trace with hash -11681386, now seen corresponding path program 1 times [2023-11-19 07:36:20,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:20,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037884357] [2023-11-19 07:36:20,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:20,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:21,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:36:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:21,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:36:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:21,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:36:21,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:21,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037884357] [2023-11-19 07:36:21,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037884357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:21,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:21,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:21,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81485640] [2023-11-19 07:36:21,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:21,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:21,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:21,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:21,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:21,073 INFO L87 Difference]: Start difference. First operand 1586 states and 2231 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:36:21,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:21,217 INFO L93 Difference]: Finished difference Result 1588 states and 2232 transitions. [2023-11-19 07:36:21,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:21,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-19 07:36:21,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:21,230 INFO L225 Difference]: With dead ends: 1588 [2023-11-19 07:36:21,231 INFO L226 Difference]: Without dead ends: 1585 [2023-11-19 07:36:21,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:21,234 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 1612 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:21,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1612 Valid, 1624 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:36:21,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2023-11-19 07:36:21,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2023-11-19 07:36:21,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1088 states have (on average 1.2729779411764706) internal successors, (1385), 1094 states have internal predecessors, (1385), 423 states have call successors, (423), 74 states have call predecessors, (423), 73 states have return successors, (421), 421 states have call predecessors, (421), 421 states have call successors, (421) [2023-11-19 07:36:21,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2229 transitions. [2023-11-19 07:36:21,370 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2229 transitions. Word has length 21 [2023-11-19 07:36:21,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:21,371 INFO L495 AbstractCegarLoop]: Abstraction has 1585 states and 2229 transitions. [2023-11-19 07:36:21,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:36:21,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2229 transitions. [2023-11-19 07:36:21,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 07:36:21,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:21,372 INFO L195 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] [2023-11-19 07:36:21,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:36:21,373 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:21,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:21,373 INFO L85 PathProgramCache]: Analyzing trace with hash -362725360, now seen corresponding path program 1 times [2023-11-19 07:36:21,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:21,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829593465] [2023-11-19 07:36:21,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:21,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:21,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:36:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:21,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:36:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:36:21,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:21,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829593465] [2023-11-19 07:36:21,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829593465] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:21,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:21,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:36:21,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324391490] [2023-11-19 07:36:21,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:21,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:21,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:21,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:21,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:21,666 INFO L87 Difference]: Start difference. First operand 1585 states and 2229 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:36:21,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:21,915 INFO L93 Difference]: Finished difference Result 1587 states and 2230 transitions. [2023-11-19 07:36:21,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:21,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-19 07:36:21,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:21,937 INFO L225 Difference]: With dead ends: 1587 [2023-11-19 07:36:21,938 INFO L226 Difference]: Without dead ends: 1575 [2023-11-19 07:36:21,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:21,941 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 1609 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1609 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:21,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1609 Valid, 1623 Invalid, 1 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:36:21,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2023-11-19 07:36:22,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1575. [2023-11-19 07:36:22,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1080 states have (on average 1.2712962962962964) internal successors, (1373), 1085 states have internal predecessors, (1373), 421 states have call successors, (421), 74 states have call predecessors, (421), 73 states have return successors, (420), 420 states have call predecessors, (420), 420 states have call successors, (420) [2023-11-19 07:36:22,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 2214 transitions. [2023-11-19 07:36:22,189 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 2214 transitions. Word has length 22 [2023-11-19 07:36:22,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:22,190 INFO L495 AbstractCegarLoop]: Abstraction has 1575 states and 2214 transitions. [2023-11-19 07:36:22,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:36:22,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 2214 transitions. [2023-11-19 07:36:22,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 07:36:22,207 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:22,207 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 07:36:22,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:36:22,208 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:22,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:22,208 INFO L85 PathProgramCache]: Analyzing trace with hash -383358289, now seen corresponding path program 1 times [2023-11-19 07:36:22,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:22,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051728542] [2023-11-19 07:36:22,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:22,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:22,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:36:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:22,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:36:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:22,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:36:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:22,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-19 07:36:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:22,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-19 07:36:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:22,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:36:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:22,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:36:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:22,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:36:22,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:22,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051728542] [2023-11-19 07:36:22,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051728542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:22,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:22,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:36:22,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260138803] [2023-11-19 07:36:22,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:22,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:36:22,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:22,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:36:22,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:36:22,993 INFO L87 Difference]: Start difference. First operand 1575 states and 2214 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-19 07:36:31,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:31,185 INFO L93 Difference]: Finished difference Result 3570 states and 5080 transitions. [2023-11-19 07:36:31,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:36:31,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 66 [2023-11-19 07:36:31,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:31,208 INFO L225 Difference]: With dead ends: 3570 [2023-11-19 07:36:31,209 INFO L226 Difference]: Without dead ends: 2005 [2023-11-19 07:36:31,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:36:31,220 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 1379 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 925 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1582 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 3410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 925 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:31,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1582 Valid, 2360 Invalid, 3410 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [925 Valid, 2485 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-11-19 07:36:31,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2023-11-19 07:36:31,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1891. [2023-11-19 07:36:31,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1308 states have (on average 1.2813455657492354) internal successors, (1676), 1313 states have internal predecessors, (1676), 509 states have call successors, (509), 74 states have call predecessors, (509), 73 states have return successors, (508), 508 states have call predecessors, (508), 508 states have call successors, (508) [2023-11-19 07:36:31,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2693 transitions. [2023-11-19 07:36:31,388 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2693 transitions. Word has length 66 [2023-11-19 07:36:31,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:31,388 INFO L495 AbstractCegarLoop]: Abstraction has 1891 states and 2693 transitions. [2023-11-19 07:36:31,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-19 07:36:31,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2693 transitions. [2023-11-19 07:36:31,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-19 07:36:31,394 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:31,394 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 07:36:31,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:36:31,395 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:31,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:31,396 INFO L85 PathProgramCache]: Analyzing trace with hash 661816488, now seen corresponding path program 1 times [2023-11-19 07:36:31,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:31,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494021854] [2023-11-19 07:36:31,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:31,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:31,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:36:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:31,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:36:31,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:31,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 07:36:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:31,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-19 07:36:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:31,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:36:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:31,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 07:36:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:31,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:36:31,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:31,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494021854] [2023-11-19 07:36:31,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494021854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:31,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:31,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:36:31,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485404553] [2023-11-19 07:36:31,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:31,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:36:31,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:31,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:36:31,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:36:31,960 INFO L87 Difference]: Start difference. First operand 1891 states and 2693 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 07:36:39,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:39,874 INFO L93 Difference]: Finished difference Result 1924 states and 2749 transitions. [2023-11-19 07:36:39,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:36:39,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 78 [2023-11-19 07:36:39,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:39,876 INFO L225 Difference]: With dead ends: 1924 [2023-11-19 07:36:39,876 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:36:39,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:36:39,889 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 1228 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 2931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:39,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1418 Valid, 1716 Invalid, 2931 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [408 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-11-19 07:36:39,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:36:39,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:36:39,891 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) [2023-11-19 07:36:39,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:36:39,892 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2023-11-19 07:36:39,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:39,892 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:36:39,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 07:36:39,893 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:36:39,893 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:36:39,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:36:39,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:36:39,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.