./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 93c428ff6f0565c9de954639ae23000ff5693477bac9f291339fc811e0689668 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:06:50,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:06:50,338 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 02:06:50,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:06:50,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:06:50,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:06:50,369 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:06:50,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:06:50,370 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:06:50,371 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:06:50,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:06:50,372 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:06:50,373 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:06:50,373 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:06:50,373 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:06:50,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:06:50,374 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:06:50,375 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:06:50,375 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:06:50,375 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:06:50,375 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:06:50,375 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:06:50,375 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:06:50,375 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:06:50,376 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:06:50,376 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:06:50,376 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:06:50,376 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:06:50,376 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:06:50,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:06:50,377 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:06:50,377 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:06:50,377 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:06:50,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:06:50,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:06:50,377 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:06:50,378 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:06:50,379 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:06:50,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:06:50,379 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:06:50,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:06:50,379 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:06:50,379 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:06:50,379 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:06:50,380 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:06:50,380 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93c428ff6f0565c9de954639ae23000ff5693477bac9f291339fc811e0689668 [2024-11-28 02:06:50,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:06:50,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:06:50,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:06:50,726 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:06:50,727 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:06:50,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2024-11-28 02:06:53,775 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/data/3ab53975c/a323aa12d6fb48ab89e3a62a670e52fe/FLAG6f09499df [2024-11-28 02:06:54,324 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:06:54,325 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2024-11-28 02:06:54,366 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/data/3ab53975c/a323aa12d6fb48ab89e3a62a670e52fe/FLAG6f09499df [2024-11-28 02:06:54,394 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/data/3ab53975c/a323aa12d6fb48ab89e3a62a670e52fe [2024-11-28 02:06:54,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:06:54,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:06:54,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:06:54,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:06:54,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:06:54,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:54,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25dffe58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54, skipping insertion in model container [2024-11-28 02:06:54,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:54,524 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:06:55,791 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i[129978,129991] [2024-11-28 02:06:55,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:06:55,976 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:06:56,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [3226-3227] [2024-11-28 02:06:56,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3238-3239] [2024-11-28 02:06:56,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3242-3243] [2024-11-28 02:06:56,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3246-3247] [2024-11-28 02:06:56,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3250-3251] [2024-11-28 02:06:56,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp): "ebx"); [3767] [2024-11-28 02:06:56,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___0): "ebx"); [3772] [2024-11-28 02:06:56,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___1): "ebx"); [3777] [2024-11-28 02:06:56,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___2): "ebx"); [3782] [2024-11-28 02:06:56,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___3): "ebx"); [3787] [2024-11-28 02:06:56,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (tmp), "i" (1UL)); [3886-3887] [2024-11-28 02:06:56,356 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i[129978,129991] [2024-11-28 02:06:56,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:06:56,478 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:06:56,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:56 WrapperNode [2024-11-28 02:06:56,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:06:56,482 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:06:56,482 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:06:56,482 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:06:56,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:56" (1/1) ... [2024-11-28 02:06:56,542 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:56" (1/1) ... [2024-11-28 02:06:56,663 INFO L138 Inliner]: procedures = 190, calls = 552, calls flagged for inlining = 74, calls inlined = 69, statements flattened = 1678 [2024-11-28 02:06:56,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:06:56,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:06:56,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:06:56,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:06:56,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:56" (1/1) ... [2024-11-28 02:06:56,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:56" (1/1) ... [2024-11-28 02:06:56,691 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:56" (1/1) ... [2024-11-28 02:06:56,946 INFO L175 MemorySlicer]: Split 205 memory accesses to 7 slices as follows [2, 13, 14, 122, 4, 27, 23]. 60 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 0, 2, 0, 0, 0]. The 128 writes are split as follows [0, 2, 12, 62, 2, 27, 23]. [2024-11-28 02:06:56,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:56" (1/1) ... [2024-11-28 02:06:56,950 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:56" (1/1) ... [2024-11-28 02:06:57,042 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:56" (1/1) ... [2024-11-28 02:06:57,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:56" (1/1) ... [2024-11-28 02:06:57,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:56" (1/1) ... [2024-11-28 02:06:57,078 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:56" (1/1) ... [2024-11-28 02:06:57,124 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:56" (1/1) ... [2024-11-28 02:06:57,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:06:57,141 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:06:57,141 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:06:57,141 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:06:57,143 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:56" (1/1) ... [2024-11-28 02:06:57,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:06:57,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:06:57,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:06:57,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:06:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_serio_raw_mutex [2024-11-28 02:06:57,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_serio_raw_mutex [2024-11-28 02:06:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 02:06:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 02:06:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 02:06:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 02:06:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 02:06:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 02:06:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 02:06:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2024-11-28 02:06:57,219 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2024-11-28 02:06:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 02:06:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 02:06:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 02:06:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 02:06:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 02:06:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 02:06:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 02:06:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-28 02:06:57,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-28 02:06:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:06:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:06:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:06:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:06:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 02:06:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 02:06:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 02:06:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-28 02:06:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-28 02:06:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-28 02:06:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-28 02:06:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-28 02:06:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-28 02:06:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2024-11-28 02:06:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2024-11-28 02:06:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2024-11-28 02:06:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2024-11-28 02:06:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-11-28 02:06:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-11-28 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-28 02:06:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-28 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-28 02:06:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-28 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-28 02:06:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-28 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2024-11-28 02:06:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2024-11-28 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-28 02:06:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-28 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_disconnect [2024-11-28 02:06:57,222 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_disconnect [2024-11-28 02:06:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure serio_continue_rx [2024-11-28 02:06:57,222 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_continue_rx [2024-11-28 02:06:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-28 02:06:57,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-28 02:06:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:06:57,222 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:06:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:06:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_poll [2024-11-28 02:06:57,227 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_poll [2024-11-28 02:06:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-28 02:06:57,227 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-28 02:06:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-28 02:06:57,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-28 02:06:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:06:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-28 02:06:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-28 02:06:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:06:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure serio_set_drvdata [2024-11-28 02:06:57,230 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_set_drvdata [2024-11-28 02:06:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:06:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:06:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:06:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 02:06:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 02:06:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 02:06:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 02:06:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-28 02:06:57,230 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-28 02:06:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-28 02:06:57,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-28 02:06:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2024-11-28 02:06:57,230 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2024-11-28 02:06:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:06:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:06:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:06:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 02:06:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 02:06:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 02:06:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 02:06:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-28 02:06:57,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-28 02:06:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure serio_pause_rx [2024-11-28 02:06:57,231 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_pause_rx [2024-11-28 02:06:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2024-11-28 02:06:57,231 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2024-11-28 02:06:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2024-11-28 02:06:57,231 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2024-11-28 02:06:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:06:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 02:06:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 02:06:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 02:06:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 02:06:57,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 02:06:57,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 02:06:57,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 02:06:57,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2024-11-28 02:06:57,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2024-11-28 02:06:57,232 INFO L130 BoogieDeclarations]: Found specification of procedure serio_get_drvdata [2024-11-28 02:06:57,232 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_get_drvdata [2024-11-28 02:06:57,232 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-28 02:06:57,235 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-28 02:06:57,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2024-11-28 02:06:57,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2024-11-28 02:06:57,235 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-28 02:06:57,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-28 02:06:57,235 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-28 02:06:57,235 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-28 02:06:57,236 INFO L130 BoogieDeclarations]: Found specification of procedure serio_close [2024-11-28 02:06:57,236 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_close [2024-11-28 02:06:57,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_serio_raw_mutex [2024-11-28 02:06:57,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_serio_raw_mutex [2024-11-28 02:06:57,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:06:57,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:06:57,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:06:57,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:06:57,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 02:06:57,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 02:06:57,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 02:06:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_write [2024-11-28 02:06:57,238 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_write [2024-11-28 02:06:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fasync [2024-11-28 02:06:57,238 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fasync [2024-11-28 02:06:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:06:57,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:06:57,777 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:06:57,779 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:06:57,899 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-28 02:07:04,854 INFO L? ?]: Removed 756 outVars from TransFormulas that were not future-live. [2024-11-28 02:07:04,855 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:07:04,892 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:07:04,896 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:07:04,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:04 BoogieIcfgContainer [2024-11-28 02:07:04,897 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:07:04,899 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:07:04,900 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:07:04,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:07:04,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:06:54" (1/3) ... [2024-11-28 02:07:04,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a32a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:04, skipping insertion in model container [2024-11-28 02:07:04,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:56" (2/3) ... [2024-11-28 02:07:04,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a32a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:04, skipping insertion in model container [2024-11-28 02:07:04,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:04" (3/3) ... [2024-11-28 02:07:04,916 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2024-11-28 02:07:04,940 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:07:04,943 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i that has 41 procedures, 544 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 02:07:05,061 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:05,079 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@30c285ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:05,080 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:07:05,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 543 states, 387 states have (on average 1.3281653746770026) internal successors, (514), 408 states have internal predecessors, (514), 115 states have call successors, (115), 40 states have call predecessors, (115), 39 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-28 02:07:05,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-28 02:07:05,112 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:05,113 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:05,114 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:05,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:05,122 INFO L85 PathProgramCache]: Analyzing trace with hash -205434704, now seen corresponding path program 1 times [2024-11-28 02:07:05,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:05,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108394796] [2024-11-28 02:07:05,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:05,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:07,030 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-28 02:07:07,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:07,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108394796] [2024-11-28 02:07:07,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108394796] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:07,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240823737] [2024-11-28 02:07:07,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:07,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:07,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:07,037 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:07,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:07:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:08,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 1915 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:07:08,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:08,768 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-11-28 02:07:08,768 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:08,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240823737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:08,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:07:08,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:07:08,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085787549] [2024-11-28 02:07:08,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:08,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:07:08,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:08,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:07:08,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:08,817 INFO L87 Difference]: Start difference. First operand has 543 states, 387 states have (on average 1.3281653746770026) internal successors, (514), 408 states have internal predecessors, (514), 115 states have call successors, (115), 40 states have call predecessors, (115), 39 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 02:07:08,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:08,967 INFO L93 Difference]: Finished difference Result 1081 states and 1510 transitions. [2024-11-28 02:07:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:07:08,969 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2024-11-28 02:07:08,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:08,990 INFO L225 Difference]: With dead ends: 1081 [2024-11-28 02:07:08,990 INFO L226 Difference]: Without dead ends: 532 [2024-11-28 02:07:09,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:09,004 INFO L435 NwaCegarLoop]: 727 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:09,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:09,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-28 02:07:09,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-11-28 02:07:09,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 382 states have (on average 1.3089005235602094) internal successors, (500), 397 states have internal predecessors, (500), 111 states have call successors, (111), 39 states have call predecessors, (111), 38 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-28 02:07:09,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 714 transitions. [2024-11-28 02:07:09,128 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 714 transitions. Word has length 168 [2024-11-28 02:07:09,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:09,128 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 714 transitions. [2024-11-28 02:07:09,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 02:07:09,129 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 714 transitions. [2024-11-28 02:07:09,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-28 02:07:09,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:09,138 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:09,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:07:09,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:07:09,339 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:09,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:09,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1676755644, now seen corresponding path program 1 times [2024-11-28 02:07:09,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:09,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834703630] [2024-11-28 02:07:09,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:09,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:11,086 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-28 02:07:11,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:11,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834703630] [2024-11-28 02:07:11,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834703630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:11,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:11,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:11,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704127148] [2024-11-28 02:07:11,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:11,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:11,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:11,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:11,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:11,093 INFO L87 Difference]: Start difference. First operand 532 states and 714 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:07:15,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:07:15,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:15,357 INFO L93 Difference]: Finished difference Result 1503 states and 2015 transitions. [2024-11-28 02:07:15,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:15,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 168 [2024-11-28 02:07:15,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:15,368 INFO L225 Difference]: With dead ends: 1503 [2024-11-28 02:07:15,369 INFO L226 Difference]: Without dead ends: 1007 [2024-11-28 02:07:15,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:15,372 INFO L435 NwaCegarLoop]: 727 mSDtfsCounter, 639 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:15,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 1419 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 02:07:15,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2024-11-28 02:07:15,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 1001. [2024-11-28 02:07:15,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 726 states have (on average 1.31267217630854) internal successors, (953), 749 states have internal predecessors, (953), 199 states have call successors, (199), 76 states have call predecessors, (199), 75 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-28 02:07:15,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1343 transitions. [2024-11-28 02:07:15,480 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1343 transitions. Word has length 168 [2024-11-28 02:07:15,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:15,481 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1343 transitions. [2024-11-28 02:07:15,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:07:15,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1343 transitions. [2024-11-28 02:07:15,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 02:07:15,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:15,485 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:15,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:07:15,485 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:15,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:15,486 INFO L85 PathProgramCache]: Analyzing trace with hash -558984291, now seen corresponding path program 1 times [2024-11-28 02:07:15,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:15,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728508050] [2024-11-28 02:07:15,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:15,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:16,685 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-28 02:07:16,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:16,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728508050] [2024-11-28 02:07:16,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728508050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:16,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:16,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:16,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914918020] [2024-11-28 02:07:16,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:16,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:16,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:16,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:16,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:16,690 INFO L87 Difference]: Start difference. First operand 1001 states and 1343 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:07:16,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:16,999 INFO L93 Difference]: Finished difference Result 2451 states and 3233 transitions. [2024-11-28 02:07:16,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:16,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 175 [2024-11-28 02:07:17,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:17,013 INFO L225 Difference]: With dead ends: 2451 [2024-11-28 02:07:17,013 INFO L226 Difference]: Without dead ends: 1486 [2024-11-28 02:07:17,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:17,017 INFO L435 NwaCegarLoop]: 726 mSDtfsCounter, 402 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:17,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 1308 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:07:17,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2024-11-28 02:07:17,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1460. [2024-11-28 02:07:17,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1058 states have (on average 1.2911153119092627) internal successors, (1366), 1097 states have internal predecessors, (1366), 272 states have call successors, (272), 132 states have call predecessors, (272), 129 states have return successors, (272), 256 states have call predecessors, (272), 264 states have call successors, (272) [2024-11-28 02:07:17,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 1910 transitions. [2024-11-28 02:07:17,146 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 1910 transitions. Word has length 175 [2024-11-28 02:07:17,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:17,148 INFO L471 AbstractCegarLoop]: Abstraction has 1460 states and 1910 transitions. [2024-11-28 02:07:17,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:07:17,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 1910 transitions. [2024-11-28 02:07:17,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 02:07:17,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:17,154 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:17,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:07:17,154 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:17,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:17,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1973412285, now seen corresponding path program 1 times [2024-11-28 02:07:17,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:17,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455222376] [2024-11-28 02:07:17,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:17,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:18,474 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-28 02:07:18,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:18,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455222376] [2024-11-28 02:07:18,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455222376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:18,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:18,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:18,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788020941] [2024-11-28 02:07:18,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:18,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:18,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:18,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:18,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:18,479 INFO L87 Difference]: Start difference. First operand 1460 states and 1910 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:07:18,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:18,606 INFO L93 Difference]: Finished difference Result 1482 states and 1936 transitions. [2024-11-28 02:07:18,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:18,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 173 [2024-11-28 02:07:18,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:18,619 INFO L225 Difference]: With dead ends: 1482 [2024-11-28 02:07:18,619 INFO L226 Difference]: Without dead ends: 1471 [2024-11-28 02:07:18,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:18,624 INFO L435 NwaCegarLoop]: 726 mSDtfsCounter, 709 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:18,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 739 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:18,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2024-11-28 02:07:18,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1460. [2024-11-28 02:07:18,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1058 states have (on average 1.289224952741021) internal successors, (1364), 1097 states have internal predecessors, (1364), 272 states have call successors, (272), 132 states have call predecessors, (272), 129 states have return successors, (272), 256 states have call predecessors, (272), 264 states have call successors, (272) [2024-11-28 02:07:18,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 1908 transitions. [2024-11-28 02:07:18,739 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 1908 transitions. Word has length 173 [2024-11-28 02:07:18,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:18,740 INFO L471 AbstractCegarLoop]: Abstraction has 1460 states and 1908 transitions. [2024-11-28 02:07:18,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:07:18,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 1908 transitions. [2024-11-28 02:07:18,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 02:07:18,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:18,744 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:18,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:07:18,745 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:18,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:18,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1916153983, now seen corresponding path program 1 times [2024-11-28 02:07:18,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:18,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116442858] [2024-11-28 02:07:18,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:18,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:20,128 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-28 02:07:20,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:20,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116442858] [2024-11-28 02:07:20,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116442858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:20,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:20,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:20,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204661371] [2024-11-28 02:07:20,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:20,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:20,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:20,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:20,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:20,132 INFO L87 Difference]: Start difference. First operand 1460 states and 1908 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:07:20,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:20,226 INFO L93 Difference]: Finished difference Result 1462 states and 1909 transitions. [2024-11-28 02:07:20,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:20,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 173 [2024-11-28 02:07:20,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:20,239 INFO L225 Difference]: With dead ends: 1462 [2024-11-28 02:07:20,239 INFO L226 Difference]: Without dead ends: 1459 [2024-11-28 02:07:20,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:20,242 INFO L435 NwaCegarLoop]: 711 mSDtfsCounter, 666 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:20,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 711 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:20,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2024-11-28 02:07:20,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1459. [2024-11-28 02:07:20,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1058 states have (on average 1.2882797731568998) internal successors, (1363), 1096 states have internal predecessors, (1363), 271 states have call successors, (271), 132 states have call predecessors, (271), 129 states have return successors, (272), 256 states have call predecessors, (272), 264 states have call successors, (272) [2024-11-28 02:07:20,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 1906 transitions. [2024-11-28 02:07:20,372 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 1906 transitions. Word has length 173 [2024-11-28 02:07:20,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:20,372 INFO L471 AbstractCegarLoop]: Abstraction has 1459 states and 1906 transitions. [2024-11-28 02:07:20,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:07:20,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 1906 transitions. [2024-11-28 02:07:20,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 02:07:20,378 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:20,380 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:20,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:07:20,381 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:20,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:20,382 INFO L85 PathProgramCache]: Analyzing trace with hash 728662927, now seen corresponding path program 1 times [2024-11-28 02:07:20,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:20,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364890047] [2024-11-28 02:07:20,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:20,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:21,421 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-28 02:07:21,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:21,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364890047] [2024-11-28 02:07:21,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364890047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:21,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:21,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:21,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326018921] [2024-11-28 02:07:21,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:21,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:21,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:21,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:21,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:21,423 INFO L87 Difference]: Start difference. First operand 1459 states and 1906 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:07:21,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:21,507 INFO L93 Difference]: Finished difference Result 1461 states and 1907 transitions. [2024-11-28 02:07:21,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:21,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 174 [2024-11-28 02:07:21,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:21,517 INFO L225 Difference]: With dead ends: 1461 [2024-11-28 02:07:21,517 INFO L226 Difference]: Without dead ends: 1458 [2024-11-28 02:07:21,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:21,519 INFO L435 NwaCegarLoop]: 709 mSDtfsCounter, 663 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:21,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 709 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:21,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2024-11-28 02:07:21,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1458. [2024-11-28 02:07:21,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1058 states have (on average 1.287334593572779) internal successors, (1362), 1095 states have internal predecessors, (1362), 270 states have call successors, (270), 132 states have call predecessors, (270), 129 states have return successors, (272), 256 states have call predecessors, (272), 264 states have call successors, (272) [2024-11-28 02:07:21,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1904 transitions. [2024-11-28 02:07:21,635 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1904 transitions. Word has length 174 [2024-11-28 02:07:21,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:21,635 INFO L471 AbstractCegarLoop]: Abstraction has 1458 states and 1904 transitions. [2024-11-28 02:07:21,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:07:21,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1904 transitions. [2024-11-28 02:07:21,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-28 02:07:21,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:21,638 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:21,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:07:21,639 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:21,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:21,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1158057193, now seen corresponding path program 1 times [2024-11-28 02:07:21,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:21,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680805311] [2024-11-28 02:07:21,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:21,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:22,618 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-28 02:07:22,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:22,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680805311] [2024-11-28 02:07:22,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680805311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:22,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:22,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:22,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903029238] [2024-11-28 02:07:22,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:22,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:22,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:22,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:22,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:22,620 INFO L87 Difference]: Start difference. First operand 1458 states and 1904 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:07:22,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:22,872 INFO L93 Difference]: Finished difference Result 3769 states and 4898 transitions. [2024-11-28 02:07:22,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:22,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 178 [2024-11-28 02:07:22,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:22,888 INFO L225 Difference]: With dead ends: 3769 [2024-11-28 02:07:22,888 INFO L226 Difference]: Without dead ends: 2357 [2024-11-28 02:07:22,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:22,895 INFO L435 NwaCegarLoop]: 1077 mSDtfsCounter, 548 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:22,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1719 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:07:22,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2024-11-28 02:07:23,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 2330. [2024-11-28 02:07:23,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2330 states, 1717 states have (on average 1.2935352358765289) internal successors, (2221), 1762 states have internal predecessors, (2221), 396 states have call successors, (396), 219 states have call predecessors, (396), 216 states have return successors, (404), 382 states have call predecessors, (404), 390 states have call successors, (404) [2024-11-28 02:07:23,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 3021 transitions. [2024-11-28 02:07:23,065 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 3021 transitions. Word has length 178 [2024-11-28 02:07:23,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:23,066 INFO L471 AbstractCegarLoop]: Abstraction has 2330 states and 3021 transitions. [2024-11-28 02:07:23,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:07:23,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 3021 transitions. [2024-11-28 02:07:23,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 02:07:23,070 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:23,071 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:23,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:07:23,071 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:23,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:23,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1113613380, now seen corresponding path program 1 times [2024-11-28 02:07:23,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:23,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426060106] [2024-11-28 02:07:23,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:23,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:24,302 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-28 02:07:24,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:24,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426060106] [2024-11-28 02:07:24,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426060106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:24,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:24,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:24,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477788686] [2024-11-28 02:07:24,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:24,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:24,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:24,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:24,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:24,307 INFO L87 Difference]: Start difference. First operand 2330 states and 3021 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:07:24,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:24,450 INFO L93 Difference]: Finished difference Result 2332 states and 3022 transitions. [2024-11-28 02:07:24,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:24,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 175 [2024-11-28 02:07:24,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:24,468 INFO L225 Difference]: With dead ends: 2332 [2024-11-28 02:07:24,468 INFO L226 Difference]: Without dead ends: 2329 [2024-11-28 02:07:24,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:24,470 INFO L435 NwaCegarLoop]: 707 mSDtfsCounter, 660 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:24,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 707 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:24,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2024-11-28 02:07:24,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2024-11-28 02:07:24,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 1717 states have (on average 1.2929528246942341) internal successors, (2220), 1761 states have internal predecessors, (2220), 395 states have call successors, (395), 219 states have call predecessors, (395), 216 states have return successors, (404), 382 states have call predecessors, (404), 390 states have call successors, (404) [2024-11-28 02:07:24,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 3019 transitions. [2024-11-28 02:07:24,669 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 3019 transitions. Word has length 175 [2024-11-28 02:07:24,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:24,670 INFO L471 AbstractCegarLoop]: Abstraction has 2329 states and 3019 transitions. [2024-11-28 02:07:24,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:07:24,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 3019 transitions. [2024-11-28 02:07:24,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 02:07:24,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:24,674 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:24,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:07:24,674 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:24,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:24,675 INFO L85 PathProgramCache]: Analyzing trace with hash 162180402, now seen corresponding path program 1 times [2024-11-28 02:07:24,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:24,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513220718] [2024-11-28 02:07:24,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:24,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:25,750 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-28 02:07:25,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:25,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513220718] [2024-11-28 02:07:25,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513220718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:25,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:25,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:25,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551279612] [2024-11-28 02:07:25,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:25,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:25,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:25,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:25,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:25,754 INFO L87 Difference]: Start difference. First operand 2329 states and 3019 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:07:26,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:26,137 INFO L93 Difference]: Finished difference Result 6413 states and 8465 transitions. [2024-11-28 02:07:26,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:26,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 176 [2024-11-28 02:07:26,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:26,163 INFO L225 Difference]: With dead ends: 6413 [2024-11-28 02:07:26,163 INFO L226 Difference]: Without dead ends: 4126 [2024-11-28 02:07:26,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:26,172 INFO L435 NwaCegarLoop]: 860 mSDtfsCounter, 645 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:26,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 1419 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:07:26,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4126 states. [2024-11-28 02:07:26,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4126 to 4084. [2024-11-28 02:07:26,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4084 states, 3075 states have (on average 1.3095934959349593) internal successors, (4027), 3158 states have internal predecessors, (4027), 659 states have call successors, (659), 363 states have call predecessors, (659), 349 states have return successors, (717), 622 states have call predecessors, (717), 651 states have call successors, (717) [2024-11-28 02:07:26,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4084 states to 4084 states and 5403 transitions. [2024-11-28 02:07:26,486 INFO L78 Accepts]: Start accepts. Automaton has 4084 states and 5403 transitions. Word has length 176 [2024-11-28 02:07:26,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:26,487 INFO L471 AbstractCegarLoop]: Abstraction has 4084 states and 5403 transitions. [2024-11-28 02:07:26,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:07:26,487 INFO L276 IsEmpty]: Start isEmpty. Operand 4084 states and 5403 transitions. [2024-11-28 02:07:26,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-28 02:07:26,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:26,492 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:26,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:07:26,493 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:26,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:26,493 INFO L85 PathProgramCache]: Analyzing trace with hash 908328443, now seen corresponding path program 1 times [2024-11-28 02:07:26,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:26,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098604170] [2024-11-28 02:07:26,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:26,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:27,503 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2024-11-28 02:07:27,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:27,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098604170] [2024-11-28 02:07:27,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098604170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:27,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:27,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:27,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798198844] [2024-11-28 02:07:27,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:27,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:27,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:27,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:27,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:27,505 INFO L87 Difference]: Start difference. First operand 4084 states and 5403 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 02:07:31,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:07:31,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:31,996 INFO L93 Difference]: Finished difference Result 9760 states and 12931 transitions. [2024-11-28 02:07:31,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:31,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 230 [2024-11-28 02:07:31,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:32,034 INFO L225 Difference]: With dead ends: 9760 [2024-11-28 02:07:32,035 INFO L226 Difference]: Without dead ends: 5726 [2024-11-28 02:07:32,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:32,052 INFO L435 NwaCegarLoop]: 1104 mSDtfsCounter, 599 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:32,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 1694 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 02:07:32,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5726 states. [2024-11-28 02:07:32,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5726 to 5678. [2024-11-28 02:07:32,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5678 states, 4327 states have (on average 1.3143055234573608) internal successors, (5687), 4422 states have internal predecessors, (5687), 863 states have call successors, (863), 505 states have call predecessors, (863), 487 states have return successors, (949), 822 states have call predecessors, (949), 855 states have call successors, (949) [2024-11-28 02:07:32,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5678 states to 5678 states and 7499 transitions. [2024-11-28 02:07:32,516 INFO L78 Accepts]: Start accepts. Automaton has 5678 states and 7499 transitions. Word has length 230 [2024-11-28 02:07:32,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:32,516 INFO L471 AbstractCegarLoop]: Abstraction has 5678 states and 7499 transitions. [2024-11-28 02:07:32,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 02:07:32,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5678 states and 7499 transitions. [2024-11-28 02:07:32,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-28 02:07:32,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:32,530 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:32,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:07:32,531 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:32,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:32,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1621206871, now seen corresponding path program 1 times [2024-11-28 02:07:32,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:32,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172249889] [2024-11-28 02:07:32,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:32,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:33,975 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2024-11-28 02:07:33,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:33,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172249889] [2024-11-28 02:07:33,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172249889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:33,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:33,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:07:33,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305393654] [2024-11-28 02:07:33,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:33,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:33,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:33,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:33,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:33,981 INFO L87 Difference]: Start difference. First operand 5678 states and 7499 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 02:07:38,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:07:38,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:38,652 INFO L93 Difference]: Finished difference Result 13636 states and 17961 transitions. [2024-11-28 02:07:38,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:07:38,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 260 [2024-11-28 02:07:38,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:38,723 INFO L225 Difference]: With dead ends: 13636 [2024-11-28 02:07:38,723 INFO L226 Difference]: Without dead ends: 8008 [2024-11-28 02:07:38,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:38,740 INFO L435 NwaCegarLoop]: 1322 mSDtfsCounter, 617 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 3340 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:38,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 3340 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 02:07:38,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8008 states. [2024-11-28 02:07:39,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8008 to 5694. [2024-11-28 02:07:39,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5694 states, 4343 states have (on average 1.3131475938291504) internal successors, (5703), 4438 states have internal predecessors, (5703), 863 states have call successors, (863), 505 states have call predecessors, (863), 487 states have return successors, (949), 822 states have call predecessors, (949), 855 states have call successors, (949) [2024-11-28 02:07:39,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5694 states to 5694 states and 7515 transitions. [2024-11-28 02:07:39,149 INFO L78 Accepts]: Start accepts. Automaton has 5694 states and 7515 transitions. Word has length 260 [2024-11-28 02:07:39,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:39,150 INFO L471 AbstractCegarLoop]: Abstraction has 5694 states and 7515 transitions. [2024-11-28 02:07:39,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 02:07:39,150 INFO L276 IsEmpty]: Start isEmpty. Operand 5694 states and 7515 transitions. [2024-11-28 02:07:39,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-28 02:07:39,155 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:39,156 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:39,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:07:39,156 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:39,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:39,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1407473805, now seen corresponding path program 1 times [2024-11-28 02:07:39,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:39,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079779812] [2024-11-28 02:07:39,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:39,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:40,262 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-11-28 02:07:40,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:40,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079779812] [2024-11-28 02:07:40,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079779812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:40,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:40,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:40,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703173146] [2024-11-28 02:07:40,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:40,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:40,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:40,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:40,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:40,265 INFO L87 Difference]: Start difference. First operand 5694 states and 7515 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 02:07:40,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:40,637 INFO L93 Difference]: Finished difference Result 11338 states and 14987 transitions. [2024-11-28 02:07:40,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:40,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 260 [2024-11-28 02:07:40,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:40,685 INFO L225 Difference]: With dead ends: 11338 [2024-11-28 02:07:40,685 INFO L226 Difference]: Without dead ends: 5694 [2024-11-28 02:07:40,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:40,703 INFO L435 NwaCegarLoop]: 702 mSDtfsCounter, 0 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:40,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1398 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:40,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5694 states. [2024-11-28 02:07:41,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5694 to 5694. [2024-11-28 02:07:41,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5694 states, 4343 states have (on average 1.302095325811651) internal successors, (5655), 4438 states have internal predecessors, (5655), 863 states have call successors, (863), 505 states have call predecessors, (863), 487 states have return successors, (949), 822 states have call predecessors, (949), 855 states have call successors, (949) [2024-11-28 02:07:41,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5694 states to 5694 states and 7467 transitions. [2024-11-28 02:07:41,239 INFO L78 Accepts]: Start accepts. Automaton has 5694 states and 7467 transitions. Word has length 260 [2024-11-28 02:07:41,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:41,239 INFO L471 AbstractCegarLoop]: Abstraction has 5694 states and 7467 transitions. [2024-11-28 02:07:41,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 02:07:41,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5694 states and 7467 transitions. [2024-11-28 02:07:41,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-28 02:07:41,245 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:41,246 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:41,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:07:41,246 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:41,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:41,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1373568888, now seen corresponding path program 1 times [2024-11-28 02:07:41,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:41,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834169978] [2024-11-28 02:07:41,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:41,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:42,499 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-11-28 02:07:42,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:42,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834169978] [2024-11-28 02:07:42,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834169978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:42,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:42,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:42,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994280340] [2024-11-28 02:07:42,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:42,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:42,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:42,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:42,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:42,502 INFO L87 Difference]: Start difference. First operand 5694 states and 7467 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 02:07:46,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:07:46,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:46,988 INFO L93 Difference]: Finished difference Result 11340 states and 14872 transitions. [2024-11-28 02:07:46,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:46,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 262 [2024-11-28 02:07:46,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:47,022 INFO L225 Difference]: With dead ends: 11340 [2024-11-28 02:07:47,022 INFO L226 Difference]: Without dead ends: 5696 [2024-11-28 02:07:47,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:47,041 INFO L435 NwaCegarLoop]: 1029 mSDtfsCounter, 553 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:47,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 1696 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 02:07:47,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5696 states. [2024-11-28 02:07:47,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5696 to 5567. [2024-11-28 02:07:47,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5567 states, 4265 states have (on average 1.3010550996483001) internal successors, (5549), 4352 states have internal predecessors, (5549), 822 states have call successors, (822), 479 states have call predecessors, (822), 479 states have return successors, (846), 807 states have call predecessors, (846), 802 states have call successors, (846) [2024-11-28 02:07:47,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5567 states to 5567 states and 7217 transitions. [2024-11-28 02:07:47,426 INFO L78 Accepts]: Start accepts. Automaton has 5567 states and 7217 transitions. Word has length 262 [2024-11-28 02:07:47,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:47,427 INFO L471 AbstractCegarLoop]: Abstraction has 5567 states and 7217 transitions. [2024-11-28 02:07:47,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 02:07:47,428 INFO L276 IsEmpty]: Start isEmpty. Operand 5567 states and 7217 transitions. [2024-11-28 02:07:47,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-28 02:07:47,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:47,432 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:47,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:07:47,433 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:47,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:47,434 INFO L85 PathProgramCache]: Analyzing trace with hash 93705210, now seen corresponding path program 1 times [2024-11-28 02:07:47,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:47,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609570036] [2024-11-28 02:07:47,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:47,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:48,717 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-11-28 02:07:48,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:48,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609570036] [2024-11-28 02:07:48,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609570036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:48,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:48,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:48,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421217239] [2024-11-28 02:07:48,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:48,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:48,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:48,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:48,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:48,721 INFO L87 Difference]: Start difference. First operand 5567 states and 7217 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 02:07:49,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:49,144 INFO L93 Difference]: Finished difference Result 5594 states and 7253 transitions. [2024-11-28 02:07:49,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:07:49,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 262 [2024-11-28 02:07:49,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:49,177 INFO L225 Difference]: With dead ends: 5594 [2024-11-28 02:07:49,177 INFO L226 Difference]: Without dead ends: 5572 [2024-11-28 02:07:49,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:49,182 INFO L435 NwaCegarLoop]: 711 mSDtfsCounter, 1 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2819 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:49,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2819 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:07:49,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5572 states. [2024-11-28 02:07:49,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5572 to 5558. [2024-11-28 02:07:49,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5558 states, 4261 states have (on average 1.3003989673785497) internal successors, (5541), 4345 states have internal predecessors, (5541), 818 states have call successors, (818), 478 states have call predecessors, (818), 478 states have return successors, (843), 806 states have call predecessors, (843), 799 states have call successors, (843) [2024-11-28 02:07:49,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5558 states to 5558 states and 7202 transitions. [2024-11-28 02:07:49,738 INFO L78 Accepts]: Start accepts. Automaton has 5558 states and 7202 transitions. Word has length 262 [2024-11-28 02:07:49,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:49,739 INFO L471 AbstractCegarLoop]: Abstraction has 5558 states and 7202 transitions. [2024-11-28 02:07:49,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 02:07:49,739 INFO L276 IsEmpty]: Start isEmpty. Operand 5558 states and 7202 transitions. [2024-11-28 02:07:49,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-28 02:07:49,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:49,748 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:49,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:07:49,748 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:49,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:49,750 INFO L85 PathProgramCache]: Analyzing trace with hash -886510679, now seen corresponding path program 1 times [2024-11-28 02:07:49,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:49,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333596479] [2024-11-28 02:07:49,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:49,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:51,267 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2024-11-28 02:07:51,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:51,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333596479] [2024-11-28 02:07:51,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333596479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:51,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:51,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:51,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942686708] [2024-11-28 02:07:51,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:51,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:51,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:51,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:51,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:51,273 INFO L87 Difference]: Start difference. First operand 5558 states and 7202 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-28 02:07:51,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:51,704 INFO L93 Difference]: Finished difference Result 11052 states and 14329 transitions. [2024-11-28 02:07:51,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:07:51,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 295 [2024-11-28 02:07:51,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:51,730 INFO L225 Difference]: With dead ends: 11052 [2024-11-28 02:07:51,730 INFO L226 Difference]: Without dead ends: 5544 [2024-11-28 02:07:51,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:51,741 INFO L435 NwaCegarLoop]: 701 mSDtfsCounter, 0 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:51,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2788 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:07:51,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5544 states. [2024-11-28 02:07:52,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5544 to 5544. [2024-11-28 02:07:52,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5544 states, 4255 states have (on average 1.299882491186839) internal successors, (5531), 4335 states have internal predecessors, (5531), 814 states have call successors, (814), 474 states have call predecessors, (814), 474 states have return successors, (839), 802 states have call predecessors, (839), 795 states have call successors, (839) [2024-11-28 02:07:52,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5544 states to 5544 states and 7184 transitions. [2024-11-28 02:07:52,058 INFO L78 Accepts]: Start accepts. Automaton has 5544 states and 7184 transitions. Word has length 295 [2024-11-28 02:07:52,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:52,059 INFO L471 AbstractCegarLoop]: Abstraction has 5544 states and 7184 transitions. [2024-11-28 02:07:52,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-28 02:07:52,059 INFO L276 IsEmpty]: Start isEmpty. Operand 5544 states and 7184 transitions. [2024-11-28 02:07:52,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-28 02:07:52,071 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:52,071 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:52,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:07:52,071 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:52,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:52,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1844646473, now seen corresponding path program 1 times [2024-11-28 02:07:52,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:52,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821728082] [2024-11-28 02:07:52,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:52,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:54,133 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2024-11-28 02:07:54,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:54,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821728082] [2024-11-28 02:07:54,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821728082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:54,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:54,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:07:54,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245549058] [2024-11-28 02:07:54,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:54,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:54,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:54,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:54,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:54,137 INFO L87 Difference]: Start difference. First operand 5544 states and 7184 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 02:07:54,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:54,612 INFO L93 Difference]: Finished difference Result 5591 states and 7236 transitions. [2024-11-28 02:07:54,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:54,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 351 [2024-11-28 02:07:54,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:54,640 INFO L225 Difference]: With dead ends: 5591 [2024-11-28 02:07:54,640 INFO L226 Difference]: Without dead ends: 5499 [2024-11-28 02:07:54,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:54,644 INFO L435 NwaCegarLoop]: 707 mSDtfsCounter, 1 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3517 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:54,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3517 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:07:54,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5499 states. [2024-11-28 02:07:55,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5499 to 5475. [2024-11-28 02:07:55,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 4193 states have (on average 1.2940615311233008) internal successors, (5426), 4272 states have internal predecessors, (5426), 807 states have call successors, (807), 474 states have call predecessors, (807), 474 states have return successors, (833), 796 states have call predecessors, (833), 789 states have call successors, (833) [2024-11-28 02:07:55,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 7066 transitions. [2024-11-28 02:07:55,080 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 7066 transitions. Word has length 351 [2024-11-28 02:07:55,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:55,082 INFO L471 AbstractCegarLoop]: Abstraction has 5475 states and 7066 transitions. [2024-11-28 02:07:55,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 02:07:55,083 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 7066 transitions. [2024-11-28 02:07:55,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-28 02:07:55,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:55,101 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:55,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:07:55,101 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:55,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:55,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1329332030, now seen corresponding path program 1 times [2024-11-28 02:07:55,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:55,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048668572] [2024-11-28 02:07:55,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:55,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:56,656 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2024-11-28 02:07:56,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:56,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048668572] [2024-11-28 02:07:56,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048668572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:56,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:56,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:07:56,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211755037] [2024-11-28 02:07:56,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:56,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:56,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:56,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:56,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:56,662 INFO L87 Difference]: Start difference. First operand 5475 states and 7066 transitions. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 02:07:57,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:57,046 INFO L93 Difference]: Finished difference Result 5661 states and 7243 transitions. [2024-11-28 02:07:57,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:57,047 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 358 [2024-11-28 02:07:57,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:57,070 INFO L225 Difference]: With dead ends: 5661 [2024-11-28 02:07:57,071 INFO L226 Difference]: Without dead ends: 5161 [2024-11-28 02:07:57,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:57,074 INFO L435 NwaCegarLoop]: 705 mSDtfsCounter, 1 mSDsluCounter, 2802 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3507 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:57,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3507 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:07:57,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5161 states. [2024-11-28 02:07:57,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5161 to 5137. [2024-11-28 02:07:57,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 3947 states have (on average 1.2946541677223207) internal successors, (5110), 4014 states have internal predecessors, (5110), 737 states have call successors, (737), 451 states have call predecessors, (737), 452 states have return successors, (765), 733 states have call predecessors, (765), 721 states have call successors, (765) [2024-11-28 02:07:57,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 6612 transitions. [2024-11-28 02:07:57,362 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 6612 transitions. Word has length 358 [2024-11-28 02:07:57,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:57,363 INFO L471 AbstractCegarLoop]: Abstraction has 5137 states and 6612 transitions. [2024-11-28 02:07:57,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 02:07:57,363 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 6612 transitions. [2024-11-28 02:07:57,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-11-28 02:07:57,373 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:57,373 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:57,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:07:57,374 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:57,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:57,375 INFO L85 PathProgramCache]: Analyzing trace with hash 923314967, now seen corresponding path program 1 times [2024-11-28 02:07:57,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:57,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775266661] [2024-11-28 02:07:57,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:57,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:59,137 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2024-11-28 02:07:59,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:59,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775266661] [2024-11-28 02:07:59,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775266661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:59,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:59,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:07:59,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78278736] [2024-11-28 02:07:59,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:59,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:59,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:59,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:59,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:59,141 INFO L87 Difference]: Start difference. First operand 5137 states and 6612 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-28 02:07:59,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:59,580 INFO L93 Difference]: Finished difference Result 10284 states and 13287 transitions. [2024-11-28 02:07:59,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:59,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 360 [2024-11-28 02:07:59,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:59,617 INFO L225 Difference]: With dead ends: 10284 [2024-11-28 02:07:59,617 INFO L226 Difference]: Without dead ends: 5197 [2024-11-28 02:07:59,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:59,631 INFO L435 NwaCegarLoop]: 703 mSDtfsCounter, 15 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3500 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:59,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 3500 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:07:59,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5197 states. [2024-11-28 02:07:59,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5197 to 5173. [2024-11-28 02:07:59,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 3983 states have (on average 1.2965101682149134) internal successors, (5164), 4056 states have internal predecessors, (5164), 743 states have call successors, (743), 451 states have call predecessors, (743), 446 states have return successors, (759), 727 states have call predecessors, (759), 727 states have call successors, (759) [2024-11-28 02:07:59,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 6666 transitions. [2024-11-28 02:07:59,953 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 6666 transitions. Word has length 360 [2024-11-28 02:07:59,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:59,954 INFO L471 AbstractCegarLoop]: Abstraction has 5173 states and 6666 transitions. [2024-11-28 02:07:59,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-28 02:07:59,954 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 6666 transitions. [2024-11-28 02:07:59,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-11-28 02:07:59,969 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:59,970 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:59,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 02:07:59,970 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:59,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:59,971 INFO L85 PathProgramCache]: Analyzing trace with hash -256670114, now seen corresponding path program 1 times [2024-11-28 02:07:59,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:59,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642680863] [2024-11-28 02:07:59,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:59,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:01,627 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2024-11-28 02:08:01,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:01,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642680863] [2024-11-28 02:08:01,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642680863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:01,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:01,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:08:01,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793817575] [2024-11-28 02:08:01,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:01,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:08:01,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:01,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:08:01,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:01,631 INFO L87 Difference]: Start difference. First operand 5173 states and 6666 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 02:08:01,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:01,978 INFO L93 Difference]: Finished difference Result 5381 states and 6858 transitions. [2024-11-28 02:08:01,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:08:01,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 366 [2024-11-28 02:08:01,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:01,988 INFO L225 Difference]: With dead ends: 5381 [2024-11-28 02:08:01,988 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:08:01,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:02,000 INFO L435 NwaCegarLoop]: 687 mSDtfsCounter, 28 mSDsluCounter, 2698 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3385 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:02,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3385 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:08:02,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:08:02,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:08:02,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:08:02,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:08:02,007 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 366 [2024-11-28 02:08:02,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:02,007 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:08:02,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 02:08:02,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:08:02,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:08:02,011 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:08:02,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 02:08:02,015 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:02,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 02:09:14,919 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:09:14,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:09:14 BoogieIcfgContainer [2024-11-28 02:09:14,950 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:09:14,951 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:09:14,951 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:09:14,953 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:09:14,954 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:04" (3/4) ... [2024-11-28 02:09:14,958 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:09:14,966 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2024-11-28 02:09:14,966 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_unlock_serio_raw_mutex [2024-11-28 02:09:14,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kill_fasync [2024-11-28 02:09:14,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_file_operations_2 [2024-11-28 02:09:14,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_get_drvdata [2024-11-28 02:09:14,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure warn_slowpath_null [2024-11-28 02:09:14,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int [2024-11-28 02:09:14,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del_init [2024-11-28 02:09:14,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add_tail [2024-11-28 02:09:14,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_set_drvdata [2024-11-28 02:09:14,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kref_sub [2024-11-28 02:09:14,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure INIT_LIST_HEAD [2024-11-28 02:09:14,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_unlock [2024-11-28 02:09:14,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2024-11-28 02:09:14,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __might_fault [2024-11-28 02:09:14,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-28 02:09:14,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __dynamic_dev_dbg [2024-11-28 02:09:14,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~VOID [2024-11-28 02:09:14,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2024-11-28 02:09:14,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2024-11-28 02:09:14,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.meminit [2024-11-28 02:09:14,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure misc_register [2024-11-28 02:09:14,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kref_put [2024-11-28 02:09:14,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-11-28 02:09:14,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_raw_disconnect [2024-11-28 02:09:14,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_close [2024-11-28 02:09:14,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_continue_rx [2024-11-28 02:09:14,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_serio_raw_mutex [2024-11-28 02:09:14,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __wake_up [2024-11-28 02:09:14,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_init_zalloc [2024-11-28 02:09:14,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 02:09:14,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_pause_rx [2024-11-28 02:09:14,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_raw_write [2024-11-28 02:09:14,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_raw_fasync [2024-11-28 02:09:14,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-28 02:09:14,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_raw_poll [2024-11-28 02:09:14,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock_interruptible [2024-11-28 02:09:14,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock [2024-11-28 02:09:14,971 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_memset [2024-11-28 02:09:14,971 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure atomic_add_return [2024-11-28 02:09:15,021 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 193 nodes and edges [2024-11-28 02:09:15,025 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 68 nodes and edges [2024-11-28 02:09:15,028 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-28 02:09:15,031 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 02:09:15,034 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:09:15,103 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_retval_1 == 0)) && (\old(ldv_mutex_serio_raw_mutex) == 1)) && (ldv_mutex_lock == 1)) && (ldv_state_variable_2 == 0)) && (ldv_mutex_serio_raw_mutex == 1)) [2024-11-28 02:09:15,104 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_retval_1 == 0)) && (\old(ldv_mutex_serio_raw_mutex) == 1)) && (ldv_mutex_lock == 1)) && (2 == ldv_mutex_serio_raw_mutex)) [2024-11-28 02:09:15,298 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_retval_1 == 0)) && (\old(ldv_mutex_serio_raw_mutex) == 1)) && (ldv_mutex_lock == 1)) && (ldv_state_variable_2 == 0)) && (ldv_mutex_serio_raw_mutex == 1)) [2024-11-28 02:09:15,298 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_retval_1 == 0)) && (\old(ldv_mutex_serio_raw_mutex) == 1)) && (ldv_mutex_lock == 1)) && (2 == ldv_mutex_serio_raw_mutex)) [2024-11-28 02:09:15,393 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:09:15,394 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:09:15,394 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:09:15,395 INFO L158 Benchmark]: Toolchain (without parser) took 140994.21ms. Allocated memory was 117.4MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 86.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 250.6MB. Max. memory is 16.1GB. [2024-11-28 02:09:15,395 INFO L158 Benchmark]: CDTParser took 1.81ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:09:15,396 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2078.27ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 86.7MB in the beginning and 137.5MB in the end (delta: -50.8MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2024-11-28 02:09:15,396 INFO L158 Benchmark]: Boogie Procedure Inliner took 181.50ms. Allocated memory is still 201.3MB. Free memory was 137.5MB in the beginning and 127.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:09:15,396 INFO L158 Benchmark]: Boogie Preprocessor took 476.31ms. Allocated memory is still 201.3MB. Free memory was 127.5MB in the beginning and 150.0MB in the end (delta: -22.5MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2024-11-28 02:09:15,396 INFO L158 Benchmark]: RCFGBuilder took 7756.40ms. Allocated memory is still 201.3MB. Free memory was 150.0MB in the beginning and 74.5MB in the end (delta: 75.5MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. [2024-11-28 02:09:15,397 INFO L158 Benchmark]: TraceAbstraction took 130050.45ms. Allocated memory was 201.3MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 72.9MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 860.3MB. Max. memory is 16.1GB. [2024-11-28 02:09:15,397 INFO L158 Benchmark]: Witness Printer took 443.05ms. Allocated memory is still 1.4GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 29.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:09:15,399 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.81ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2078.27ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 86.7MB in the beginning and 137.5MB in the end (delta: -50.8MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 181.50ms. Allocated memory is still 201.3MB. Free memory was 137.5MB in the beginning and 127.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 476.31ms. Allocated memory is still 201.3MB. Free memory was 127.5MB in the beginning and 150.0MB in the end (delta: -22.5MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. * RCFGBuilder took 7756.40ms. Allocated memory is still 201.3MB. Free memory was 150.0MB in the beginning and 74.5MB in the end (delta: 75.5MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. * TraceAbstraction took 130050.45ms. Allocated memory was 201.3MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 72.9MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 860.3MB. Max. memory is 16.1GB. * Witness Printer took 443.05ms. Allocated memory is still 1.4GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 29.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3226]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [3226-3227] - GenericResultAtLocation [Line: 3238]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3238-3239] - GenericResultAtLocation [Line: 3242]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3242-3243] - GenericResultAtLocation [Line: 3246]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3246-3247] - GenericResultAtLocation [Line: 3250]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3250-3251] - GenericResultAtLocation [Line: 3767]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp): "ebx"); [3767] - GenericResultAtLocation [Line: 3772]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___0): "ebx"); [3772] - GenericResultAtLocation [Line: 3777]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___1): "ebx"); [3777] - GenericResultAtLocation [Line: 3782]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___2): "ebx"); [3782] - GenericResultAtLocation [Line: 3787]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___3): "ebx"); [3787] - GenericResultAtLocation [Line: 3886]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (tmp), "i" (1UL)); [3886-3887] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 4599]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 544 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 57.0s, OverallIterations: 19, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 23.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 6769 SdHoareTripleChecker+Valid, 17.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6747 mSDsluCounter, 37102 SdHoareTripleChecker+Invalid, 17.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21761 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 327 IncrementalHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 15341 mSDtfsCounter, 327 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 242 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5694occurred in iteration=11, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.0s AutomataMinimizationTime, 19 MinimizatonAttempts, 2689 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 4732 NumberOfCodeBlocks, 4732 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 4712 ConstructedInterpolants, 0 QuantifiedInterpolants, 5257 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1915 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 20 InterpolantComputations, 19 PerfectInterpolantSequences, 8775/8800 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 3984]: Location Invariant Derived location invariant: ((((((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_serio_raw_mutex == 1)) && (ldv_state_variable_1 == 1)) - InvariantResult [Line: 3740]: Location Invariant Derived location invariant: (((((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_serio_raw_mutex == 1)) - InvariantResult [Line: 4086]: Location Invariant Derived location invariant: (((((((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_retval_1 == 0)) && (\old(ldv_mutex_serio_raw_mutex) == 1)) && (ldv_mutex_lock == 1)) && (ldv_state_variable_2 == 0)) && (ldv_mutex_serio_raw_mutex == 1)) - InvariantResult [Line: 4004]: Loop Invariant Derived loop invariant: ((((((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_serio_raw_mutex == 1)) && (ldv_state_variable_1 == 1)) - InvariantResult [Line: 3954]: Location Invariant Derived location invariant: (((((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_serio_raw_mutex == 1)) - InvariantResult [Line: 3984]: Location Invariant Derived location invariant: ((((((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_serio_raw_mutex == 1)) && (ldv_state_variable_1 == 1)) - InvariantResult [Line: 3862]: Location Invariant Derived location invariant: ((((((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_retval_1 == 0)) && (\old(ldv_mutex_serio_raw_mutex) == 1)) && (ldv_mutex_lock == 1)) && (2 == ldv_mutex_serio_raw_mutex)) - InvariantResult [Line: 4042]: Location Invariant Derived location invariant: ((((((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_serio_raw_mutex == 1)) && (ldv_state_variable_1 == 1)) RESULT: Ultimate proved your program to be correct! [2024-11-28 02:09:15,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84da388d-7655-41d5-8fb6-f34528a299e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE