./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 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebff50ff-a413-416a-9415-1fe4ca34fbfa/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebff50ff-a413-416a-9415-1fe4ca34fbfa/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebff50ff-a413-416a-9415-1fe4ca34fbfa/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebff50ff-a413-416a-9415-1fe4ca34fbfa/bin/uautomizer-verify-bycVGegfSx/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_ebff50ff-a413-416a-9415-1fe4ca34fbfa/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebff50ff-a413-416a-9415-1fe4ca34fbfa/bin/uautomizer-verify-bycVGegfSx --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-527bcce [2023-11-21 22:25:48,384 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:25:48,504 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebff50ff-a413-416a-9415-1fe4ca34fbfa/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:25:48,511 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:25:48,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:25:48,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:25:48,554 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:25:48,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:25:48,556 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:25:48,561 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:25:48,561 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:25:48,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:25:48,563 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:25:48,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:25:48,565 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:25:48,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:25:48,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:25:48,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:25:48,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:25:48,567 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:25:48,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:25:48,568 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:25:48,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:25:48,569 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:25:48,569 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:25:48,570 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:25:48,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:25:48,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:25:48,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:48,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:25:48,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:25:48,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:25:48,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:25:48,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:25:48,574 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:25:48,574 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:25:48,574 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:25:48,575 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:25:48,575 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:25:48,575 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_ebff50ff-a413-416a-9415-1fe4ca34fbfa/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebff50ff-a413-416a-9415-1fe4ca34fbfa/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 854a4ccfd5301563e0d21e019793cd1524b69bffdbb690df8c24a487a54bad7c [2023-11-21 22:25:48,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:25:48,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:25:48,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:25:48,922 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:25:48,923 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:25:48,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebff50ff-a413-416a-9415-1fe4ca34fbfa/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389.i [2023-11-21 22:25:52,024 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:25:52,628 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:25:52,629 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebff50ff-a413-416a-9415-1fe4ca34fbfa/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389.i [2023-11-21 22:25:52,673 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebff50ff-a413-416a-9415-1fe4ca34fbfa/bin/uautomizer-verify-bycVGegfSx/data/d30a9c248/c66d7303f2534780beda6600932be992/FLAG5f7ca9ada [2023-11-21 22:25:52,689 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebff50ff-a413-416a-9415-1fe4ca34fbfa/bin/uautomizer-verify-bycVGegfSx/data/d30a9c248/c66d7303f2534780beda6600932be992 [2023-11-21 22:25:52,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:25:52,698 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:25:52,702 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:52,702 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:25:52,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:25:52,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:52" (1/1) ... [2023-11-21 22:25:52,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af78503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:52, skipping insertion in model container [2023-11-21 22:25:52,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:52" (1/1) ... [2023-11-21 22:25:52,858 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:54,529 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_ebff50ff-a413-416a-9415-1fe4ca34fbfa/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389.i[220073,220086] [2023-11-21 22:25:54,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:54,771 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:25:54,942 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] [2023-11-21 22:25:54,944 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] [2023-11-21 22:25:54,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5224] [2023-11-21 22:25:54,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [5231] [2023-11-21 22:25:54,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5238] [2023-11-21 22:25:55,179 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)__sd->list.next) [6182] [2023-11-21 22:25:55,257 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)__sd->list.next) [6288] [2023-11-21 22:25:55,418 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_ebff50ff-a413-416a-9415-1fe4ca34fbfa/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389.i[220073,220086] [2023-11-21 22:25:55,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:55,622 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,622 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,630 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:25:55,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55 WrapperNode [2023-11-21 22:25:55,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:55,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:55,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:25:55,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:25:55,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:55,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:55,972 INFO L138 Inliner]: procedures = 228, calls = 1718, calls flagged for inlining = 120, calls inlined = 112, statements flattened = 3977 [2023-11-21 22:25:55,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:55,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:25:55,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:25:55,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:25:55,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:55,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:56,025 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:56,744 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_strcpy is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 22:25:56,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:56,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:56,928 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:56,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:56,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:57,002 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:57,033 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:25:57,034 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:25:57,035 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:25:57,035 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:25:57,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:57,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:57,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebff50ff-a413-416a-9415-1fe4ca34fbfa/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:57,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebff50ff-a413-416a-9415-1fe4ca34fbfa/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:57,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebff50ff-a413-416a-9415-1fe4ca34fbfa/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:25:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-21 22:25:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-21 22:25:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-21 22:25:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-21 22:25:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:25:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:25:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure blackbird_initialize_codec [2023-11-21 22:25:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure blackbird_initialize_codec [2023-11-21 22:25:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvnorm [2023-11-21 22:25:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvnorm [2023-11-21 22:25:57,127 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_blackbird_advise_acquire [2023-11-21 22:25:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_blackbird_advise_acquire [2023-11-21 22:25:57,127 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 22:25:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 22:25:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 22:25:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 22:25:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-21 22:25:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-21 22:25:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-21 22:25:57,130 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-21 22:25:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-21 22:25:57,130 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-21 22:25:57,131 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_scale [2023-11-21 22:25:57,131 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_scale [2023-11-21 22:25:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-21 22:25:57,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-21 22:25:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_next [2023-11-21 22:25:57,132 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_next [2023-11-21 22:25:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_va_arg [2023-11-21 22:25:57,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_va_arg [2023-11-21 22:25:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure memory_read [2023-11-21 22:25:57,133 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_read [2023-11-21 22:25:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:25:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-21 22:25:57,134 INFO L130 BoogieDeclarations]: Found specification of procedure cx2341x_update [2023-11-21 22:25:57,134 INFO L138 BoogieDeclarations]: Found implementation of procedure cx2341x_update [2023-11-21 22:25:57,134 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-21 22:25:57,134 INFO L130 BoogieDeclarations]: Found specification of procedure register_read [2023-11-21 22:25:57,134 INFO L138 BoogieDeclarations]: Found implementation of procedure register_read [2023-11-21 22:25:57,134 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_blackbird_advise_release [2023-11-21 22:25:57,135 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_blackbird_advise_release [2023-11-21 22:25:57,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:25:57,135 INFO L130 BoogieDeclarations]: Found specification of procedure cx2341x_ext_ctrls [2023-11-21 22:25:57,135 INFO L138 BoogieDeclarations]: Found implementation of procedure cx2341x_ext_ctrls [2023-11-21 22:25:57,135 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-21 22:25:57,136 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-21 22:25:57,136 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_get_driver [2023-11-21 22:25:57,136 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_get_driver [2023-11-21 22:25:57,136 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2023-11-21 22:25:57,136 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2023-11-21 22:25:57,136 INFO L130 BoogieDeclarations]: Found specification of procedure register_write [2023-11-21 22:25:57,137 INFO L138 BoogieDeclarations]: Found implementation of procedure register_write [2023-11-21 22:25:57,137 INFO L130 BoogieDeclarations]: Found specification of procedure blackbird_start_codec [2023-11-21 22:25:57,137 INFO L138 BoogieDeclarations]: Found implementation of procedure blackbird_start_codec [2023-11-21 22:25:57,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:25:57,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:25:57,139 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:25:57,140 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:25:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2023-11-21 22:25:57,140 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2023-11-21 22:25:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_blackbird_remove [2023-11-21 22:25:57,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_blackbird_remove [2023-11-21 22:25:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure memory_write [2023-11-21 22:25:57,141 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_write [2023-11-21 22:25:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-21 22:25:57,141 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-21 22:25:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-21 22:25:57,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-21 22:25:57,143 INFO L130 BoogieDeclarations]: Found specification of procedure blackbird_queryctrl [2023-11-21 22:25:57,143 INFO L138 BoogieDeclarations]: Found implementation of procedure blackbird_queryctrl [2023-11-21 22:25:57,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:25:57,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:25:57,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_cx88_core [2023-11-21 22:25:57,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_cx88_core [2023-11-21 22:25:57,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_cx88_core [2023-11-21 22:25:57,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_cx88_core [2023-11-21 22:25:57,144 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_video_mux [2023-11-21 22:25:57,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_video_mux [2023-11-21 22:25:57,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:25:57,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:25:57,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:25:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure mpeg_open [2023-11-21 22:25:57,146 INFO L138 BoogieDeclarations]: Found implementation of procedure mpeg_open [2023-11-21 22:25:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:25:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure blackbird_stop_codec [2023-11-21 22:25:57,147 INFO L138 BoogieDeclarations]: Found implementation of procedure blackbird_stop_codec [2023-11-21 22:25:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:25:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure mpeg_release [2023-11-21 22:25:57,147 INFO L138 BoogieDeclarations]: Found implementation of procedure mpeg_release [2023-11-21 22:25:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-21 22:25:57,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-21 22:25:57,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:25:57,148 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_log_status [2023-11-21 22:25:57,148 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_log_status [2023-11-21 22:25:57,148 INFO L130 BoogieDeclarations]: Found specification of procedure mpeg_poll [2023-11-21 22:25:57,148 INFO L138 BoogieDeclarations]: Found implementation of procedure mpeg_poll [2023-11-21 22:25:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure wait_ready_gpio0_bit1 [2023-11-21 22:25:57,149 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_ready_gpio0_bit1 [2023-11-21 22:25:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_blackbird_probe [2023-11-21 22:25:57,149 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_blackbird_probe [2023-11-21 22:25:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_ctrl_query [2023-11-21 22:25:57,150 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_ctrl_query [2023-11-21 22:25:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-21 22:25:57,150 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-21 22:25:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure blackbird_api_cmd [2023-11-21 22:25:57,151 INFO L138 BoogieDeclarations]: Found implementation of procedure blackbird_api_cmd [2023-11-21 22:25:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-11-21 22:25:57,152 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-11-21 22:25:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-21 22:25:57,152 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-21 22:25:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure mpeg_mmap [2023-11-21 22:25:57,152 INFO L138 BoogieDeclarations]: Found implementation of procedure mpeg_mmap [2023-11-21 22:25:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-21 22:25:57,153 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-21 22:25:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:25:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-11-21 22:25:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-11-21 22:25:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:25:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:25:57,968 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:25:57,972 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:26:11,809 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:26:13,157 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:26:13,157 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:26:13,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:26:13 BoogieIcfgContainer [2023-11-21 22:26:13,160 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:26:13,164 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:26:13,164 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:26:13,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:26:13,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:25:52" (1/3) ... [2023-11-21 22:26:13,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73bd74ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:26:13, skipping insertion in model container [2023-11-21 22:26:13,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (2/3) ... [2023-11-21 22:26:13,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73bd74ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:26:13, skipping insertion in model container [2023-11-21 22:26:13,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:26:13" (3/3) ... [2023-11-21 22:26:13,173 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389.i [2023-11-21 22:26:13,194 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:26:13,194 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:26:13,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:26:13,302 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;@122868e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:26:13,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:26:13,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 891 states, 528 states have (on average 1.2670454545454546) internal successors, (669), 538 states have internal predecessors, (669), 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) [2023-11-21 22:26:13,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 22:26:13,325 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:13,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:13,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:26:13,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:13,339 INFO L85 PathProgramCache]: Analyzing trace with hash -645150196, now seen corresponding path program 1 times [2023-11-21 22:26:13,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:13,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878284110] [2023-11-21 22:26:13,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:13,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:14,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:26:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:14,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:26:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:14,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:14,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:14,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878284110] [2023-11-21 22:26:14,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878284110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:14,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:14,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:26:14,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939229648] [2023-11-21 22:26:14,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:14,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:26:14,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:14,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:26:14,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:26:14,130 INFO L87 Difference]: Start difference. First operand has 891 states, 528 states have (on average 1.2670454545454546) internal successors, (669), 538 states have internal predecessors, (669), 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-21 22:26:15,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:15,117 INFO L93 Difference]: Finished difference Result 2104 states and 3044 transitions. [2023-11-21 22:26:15,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:26:15,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 14 [2023-11-21 22:26:15,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:15,144 INFO L225 Difference]: With dead ends: 2104 [2023-11-21 22:26:15,145 INFO L226 Difference]: Without dead ends: 1217 [2023-11-21 22:26:15,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:26:15,159 INFO L413 NwaCegarLoop]: 1140 mSDtfsCounter, 1171 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:15,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 1630 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-21 22:26:15,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2023-11-21 22:26:15,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1215. [2023-11-21 22:26:15,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 716 states have (on average 1.2360335195530727) internal successors, (885), 724 states have internal predecessors, (885), 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) [2023-11-21 22:26:15,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1731 transitions. [2023-11-21 22:26:15,339 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1731 transitions. Word has length 14 [2023-11-21 22:26:15,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:15,340 INFO L495 AbstractCegarLoop]: Abstraction has 1215 states and 1731 transitions. [2023-11-21 22:26:15,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-21 22:26:15,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1731 transitions. [2023-11-21 22:26:15,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 22:26:15,342 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:15,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:15,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:26:15,342 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:26:15,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:15,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1474568276, now seen corresponding path program 1 times [2023-11-21 22:26:15,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:15,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637201880] [2023-11-21 22:26:15,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:15,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:15,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:26:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:15,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:26:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:15,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:15,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:15,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637201880] [2023-11-21 22:26:15,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637201880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:15,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:15,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:26:15,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805390842] [2023-11-21 22:26:15,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:15,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:26:15,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:15,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:26:15,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:26:15,810 INFO L87 Difference]: Start difference. First operand 1215 states and 1731 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-21 22:26:16,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:16,459 INFO L93 Difference]: Finished difference Result 1217 states and 1732 transitions. [2023-11-21 22:26:16,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:26:16,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 15 [2023-11-21 22:26:16,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:16,472 INFO L225 Difference]: With dead ends: 1217 [2023-11-21 22:26:16,472 INFO L226 Difference]: Without dead ends: 1214 [2023-11-21 22:26:16,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:26:16,475 INFO L413 NwaCegarLoop]: 1135 mSDtfsCounter, 1263 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:16,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 1135 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-21 22:26:16,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2023-11-21 22:26:16,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1214. [2023-11-21 22:26:16,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 716 states have (on average 1.23463687150838) internal successors, (884), 723 states have internal predecessors, (884), 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) [2023-11-21 22:26:16,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1729 transitions. [2023-11-21 22:26:16,580 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1729 transitions. Word has length 15 [2023-11-21 22:26:16,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:16,581 INFO L495 AbstractCegarLoop]: Abstraction has 1214 states and 1729 transitions. [2023-11-21 22:26:16,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-21 22:26:16,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1729 transitions. [2023-11-21 22:26:16,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 22:26:16,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:16,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:16,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:26:16,583 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:26:16,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:16,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1533630961, now seen corresponding path program 1 times [2023-11-21 22:26:16,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:16,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817919637] [2023-11-21 22:26:16,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:16,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:16,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:26:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:16,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:26:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:16,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:16,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:16,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817919637] [2023-11-21 22:26:16,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817919637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:16,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:16,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:26:16,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107635978] [2023-11-21 22:26:16,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:16,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:26:16,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:16,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:26:16,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:26:16,851 INFO L87 Difference]: Start difference. First operand 1214 states and 1729 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-21 22:26:17,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:17,503 INFO L93 Difference]: Finished difference Result 1216 states and 1730 transitions. [2023-11-21 22:26:17,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:26:17,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 16 [2023-11-21 22:26:17,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:17,516 INFO L225 Difference]: With dead ends: 1216 [2023-11-21 22:26:17,516 INFO L226 Difference]: Without dead ends: 1213 [2023-11-21 22:26:17,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:26:17,519 INFO L413 NwaCegarLoop]: 1133 mSDtfsCounter, 1260 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:17,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 1133 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:26:17,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2023-11-21 22:26:17,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1213. [2023-11-21 22:26:17,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 716 states have (on average 1.2332402234636872) internal successors, (883), 722 states have internal predecessors, (883), 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) [2023-11-21 22:26:17,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1727 transitions. [2023-11-21 22:26:17,633 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1727 transitions. Word has length 16 [2023-11-21 22:26:17,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:17,634 INFO L495 AbstractCegarLoop]: Abstraction has 1213 states and 1727 transitions. [2023-11-21 22:26:17,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-21 22:26:17,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1727 transitions. [2023-11-21 22:26:17,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 22:26:17,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:17,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:17,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:26:17,636 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:26:17,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:17,636 INFO L85 PathProgramCache]: Analyzing trace with hash -298521929, now seen corresponding path program 1 times [2023-11-21 22:26:17,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:17,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892282854] [2023-11-21 22:26:17,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:17,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:17,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:26:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:17,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:26:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:17,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:17,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:17,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892282854] [2023-11-21 22:26:17,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892282854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:17,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:17,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:26:17,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355530342] [2023-11-21 22:26:17,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:17,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:26:17,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:17,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:26:17,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:26:17,945 INFO L87 Difference]: Start difference. First operand 1213 states and 1727 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-21 22:26:18,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:18,592 INFO L93 Difference]: Finished difference Result 1215 states and 1728 transitions. [2023-11-21 22:26:18,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:26:18,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 17 [2023-11-21 22:26:18,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:18,605 INFO L225 Difference]: With dead ends: 1215 [2023-11-21 22:26:18,605 INFO L226 Difference]: Without dead ends: 1205 [2023-11-21 22:26:18,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:26:18,608 INFO L413 NwaCegarLoop]: 1132 mSDtfsCounter, 1257 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:18,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1257 Valid, 1132 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:26:18,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2023-11-21 22:26:18,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1205. [2023-11-21 22:26:18,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 710 states have (on average 1.2295774647887323) internal successors, (873), 715 states have internal predecessors, (873), 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) [2023-11-21 22:26:18,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1714 transitions. [2023-11-21 22:26:18,809 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1714 transitions. Word has length 17 [2023-11-21 22:26:18,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:18,809 INFO L495 AbstractCegarLoop]: Abstraction has 1205 states and 1714 transitions. [2023-11-21 22:26:18,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-21 22:26:18,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1714 transitions. [2023-11-21 22:26:18,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-21 22:26:18,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:18,815 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] [2023-11-21 22:26:18,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:26:18,815 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:26:18,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:18,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1463959553, now seen corresponding path program 1 times [2023-11-21 22:26:18,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:18,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866527577] [2023-11-21 22:26:18,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:18,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:19,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:26:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:19,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:26:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:19,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 22:26:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:19,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-21 22:26:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:19,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:26:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:19,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-21 22:26:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:19,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:26:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:19,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:26:19,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:19,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866527577] [2023-11-21 22:26:19,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866527577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:19,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:19,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:26:19,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584635642] [2023-11-21 22:26:19,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:19,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:26:19,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:19,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:26:19,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:26:19,395 INFO L87 Difference]: Start difference. First operand 1205 states and 1714 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-11-21 22:26:26,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:26,870 INFO L93 Difference]: Finished difference Result 2688 states and 3884 transitions. [2023-11-21 22:26:26,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:26:26,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 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 48 [2023-11-21 22:26:26,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:26,888 INFO L225 Difference]: With dead ends: 2688 [2023-11-21 22:26:26,889 INFO L226 Difference]: Without dead ends: 1489 [2023-11-21 22:26:26,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:26:26,899 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 836 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 894 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 1562 SdHoareTripleChecker+Invalid, 2991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 894 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:26,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 1562 Invalid, 2991 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [894 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-11-21 22:26:26,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2023-11-21 22:26:27,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1455. [2023-11-21 22:26:27,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 872 states have (on average 1.2591743119266054) internal successors, (1098), 877 states have internal predecessors, (1098), 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) [2023-11-21 22:26:27,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 2115 transitions. [2023-11-21 22:26:27,166 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 2115 transitions. Word has length 48 [2023-11-21 22:26:27,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:27,166 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 2115 transitions. [2023-11-21 22:26:27,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-11-21 22:26:27,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 2115 transitions. [2023-11-21 22:26:27,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-21 22:26:27,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:27,178 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-11-21 22:26:27,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:26:27,179 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:26:27,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:27,179 INFO L85 PathProgramCache]: Analyzing trace with hash 939962318, now seen corresponding path program 1 times [2023-11-21 22:26:27,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:27,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576402669] [2023-11-21 22:26:27,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:27,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:27,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:26:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:27,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:26:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:27,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:26:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:27,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-21 22:26:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:27,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:26:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:27,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:26:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:27,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:26:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:27,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-21 22:26:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:27,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:26:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:27,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-21 22:26:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:28,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-21 22:26:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:28,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:26:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:28,083 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 22:26:28,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:28,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576402669] [2023-11-21 22:26:28,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576402669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:28,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:28,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:26:28,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682470952] [2023-11-21 22:26:28,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:28,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:26:28,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:28,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:26:28,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:26:28,087 INFO L87 Difference]: Start difference. First operand 1455 states and 2115 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-21 22:26:37,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:37,646 INFO L93 Difference]: Finished difference Result 1489 states and 2176 transitions. [2023-11-21 22:26:37,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:26:37,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2023-11-21 22:26:37,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:37,650 INFO L225 Difference]: With dead ends: 1489 [2023-11-21 22:26:37,650 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 22:26:37,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:26:37,662 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 901 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 2770 mSolverCounterSat, 957 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 3727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 957 IncrementalHoareTripleChecker+Valid, 2770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:37,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 1467 Invalid, 3727 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [957 Valid, 2770 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2023-11-21 22:26:37,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 22:26:37,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 22:26:37,664 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) [2023-11-21 22:26:37,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 22:26:37,665 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2023-11-21 22:26:37,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:37,666 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:26:37,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-21 22:26:37,666 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:26:37,666 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 22:26:37,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:26:37,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:26:37,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.