./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 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/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_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC --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-6497de0 [2024-11-24 00:30:15,194 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:30:15,316 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 00:30:15,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:30:15,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:30:15,365 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:30:15,366 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:30:15,367 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:30:15,367 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:30:15,368 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:30:15,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:30:15,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:30:15,370 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:30:15,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:30:15,371 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:30:15,371 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:30:15,372 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:30:15,372 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:30:15,372 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:30:15,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:30:15,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:30:15,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:30:15,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:30:15,373 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:30:15,373 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:30:15,373 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:30:15,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:30:15,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:30:15,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:30:15,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:30:15,374 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:30:15,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:30:15,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:30:15,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:30:15,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:30:15,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:30:15,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:30:15,376 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:30:15,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:30:15,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:30:15,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:30:15,376 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:30:15,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:30:15,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:30:15,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:30:15,376 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_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC 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 [2024-11-24 00:30:15,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:30:15,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:30:15,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:30:15,783 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:30:15,784 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:30:15,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2024-11-24 00:30:19,054 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/data/981793162/c7220d6585a64f17985b9d52d0b8b8d7/FLAGf385fce00 [2024-11-24 00:30:19,722 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:30:19,723 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2024-11-24 00:30:19,765 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/data/981793162/c7220d6585a64f17985b9d52d0b8b8d7/FLAGf385fce00 [2024-11-24 00:30:19,787 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/data/981793162/c7220d6585a64f17985b9d52d0b8b8d7 [2024-11-24 00:30:19,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:30:19,795 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:30:19,797 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:30:19,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:30:19,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:30:19,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:30:19" (1/1) ... [2024-11-24 00:30:19,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12febe71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:19, skipping insertion in model container [2024-11-24 00:30:19,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:30:19" (1/1) ... [2024-11-24 00:30:19,933 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:30:21,031 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_84941c58-6e5c-4613-a5ea-6df9dfd131b0/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] [2024-11-24 00:30:21,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:30:21,202 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:30:21,366 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] [2024-11-24 00:30:21,371 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] [2024-11-24 00:30:21,371 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] [2024-11-24 00:30:21,371 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] [2024-11-24 00:30:21,373 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] [2024-11-24 00:30:21,433 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] [2024-11-24 00:30:21,433 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] [2024-11-24 00:30:21,434 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] [2024-11-24 00:30:21,434 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] [2024-11-24 00:30:21,434 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] [2024-11-24 00:30:21,442 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] [2024-11-24 00:30:21,516 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_84941c58-6e5c-4613-a5ea-6df9dfd131b0/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] [2024-11-24 00:30:21,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:30:21,629 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:30:21,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:21 WrapperNode [2024-11-24 00:30:21,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:30:21,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:30:21,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:30:21,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:30:21,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:21" (1/1) ... [2024-11-24 00:30:21,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:21" (1/1) ... [2024-11-24 00:30:21,845 INFO L138 Inliner]: procedures = 190, calls = 552, calls flagged for inlining = 74, calls inlined = 69, statements flattened = 1678 [2024-11-24 00:30:21,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:30:21,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:30:21,846 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:30:21,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:30:21,856 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:21" (1/1) ... [2024-11-24 00:30:21,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:21" (1/1) ... [2024-11-24 00:30:21,881 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:21" (1/1) ... [2024-11-24 00:30:22,075 INFO L175 MemorySlicer]: Split 205 memory accesses to 7 slices as follows [2, 23, 13, 14, 4, 122, 27]. 60 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 0, 0, 0, 2, 0]. The 128 writes are split as follows [0, 23, 2, 12, 2, 62, 27]. [2024-11-24 00:30:22,076 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:21" (1/1) ... [2024-11-24 00:30:22,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:21" (1/1) ... [2024-11-24 00:30:22,142 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:21" (1/1) ... [2024-11-24 00:30:22,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:21" (1/1) ... [2024-11-24 00:30:22,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:21" (1/1) ... [2024-11-24 00:30:22,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:21" (1/1) ... [2024-11-24 00:30:22,190 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:21" (1/1) ... [2024-11-24 00:30:22,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:30:22,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:30:22,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:30:22,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:30:22,206 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:21" (1/1) ... [2024-11-24 00:30:22,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:30:22,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:22,247 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:30:22,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:30:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_serio_raw_mutex [2024-11-24 00:30:22,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_serio_raw_mutex [2024-11-24 00:30:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 00:30:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 00:30:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 00:30:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 00:30:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 00:30:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 00:30:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 00:30:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2024-11-24 00:30:22,283 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2024-11-24 00:30:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 00:30:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 00:30:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 00:30:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 00:30:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 00:30:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 00:30:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 00:30:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-24 00:30:22,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-24 00:30:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:30:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:30:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:30:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 00:30:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 00:30:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 00:30:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 00:30:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-24 00:30:22,288 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-24 00:30:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-24 00:30:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-24 00:30:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-24 00:30:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-24 00:30:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2024-11-24 00:30:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2024-11-24 00:30:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2024-11-24 00:30:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2024-11-24 00:30:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-11-24 00:30:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-11-24 00:30:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:30:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:30:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:30:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 00:30:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 00:30:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 00:30:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 00:30:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-24 00:30:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-24 00:30:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-24 00:30:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-24 00:30:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-24 00:30:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-24 00:30:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2024-11-24 00:30:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2024-11-24 00:30:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-24 00:30:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-24 00:30:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_disconnect [2024-11-24 00:30:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_disconnect [2024-11-24 00:30:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure serio_continue_rx [2024-11-24 00:30:22,293 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_continue_rx [2024-11-24 00:30:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-24 00:30:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-24 00:30:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:30:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:30:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 00:30:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_poll [2024-11-24 00:30:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_poll [2024-11-24 00:30:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-24 00:30:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-24 00:30:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-24 00:30:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-24 00:30:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:30:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-24 00:30:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-24 00:30:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:30:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure serio_set_drvdata [2024-11-24 00:30:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_set_drvdata [2024-11-24 00:30:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 00:30:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 00:30:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 00:30:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 00:30:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 00:30:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 00:30:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 00:30:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-24 00:30:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-24 00:30:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-24 00:30:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-24 00:30:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2024-11-24 00:30:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2024-11-24 00:30:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 00:30:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 00:30:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 00:30:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 00:30:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 00:30:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 00:30:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 00:30:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-24 00:30:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-24 00:30:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure serio_pause_rx [2024-11-24 00:30:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_pause_rx [2024-11-24 00:30:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2024-11-24 00:30:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2024-11-24 00:30:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2024-11-24 00:30:22,302 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2024-11-24 00:30:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:30:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 00:30:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 00:30:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 00:30:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 00:30:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 00:30:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 00:30:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 00:30:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2024-11-24 00:30:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2024-11-24 00:30:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure serio_get_drvdata [2024-11-24 00:30:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_get_drvdata [2024-11-24 00:30:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-24 00:30:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-24 00:30:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2024-11-24 00:30:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2024-11-24 00:30:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-24 00:30:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-24 00:30:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-24 00:30:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-24 00:30:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure serio_close [2024-11-24 00:30:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_close [2024-11-24 00:30:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_serio_raw_mutex [2024-11-24 00:30:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_serio_raw_mutex [2024-11-24 00:30:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:30:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:30:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:30:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:30:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:30:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 00:30:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 00:30:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_write [2024-11-24 00:30:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_write [2024-11-24 00:30:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fasync [2024-11-24 00:30:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fasync [2024-11-24 00:30:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:30:22,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:30:22,825 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:30:22,829 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:30:22,945 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-24 00:30:29,846 INFO L? ?]: Removed 756 outVars from TransFormulas that were not future-live. [2024-11-24 00:30:29,846 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:30:29,871 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:30:29,871 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 00:30:29,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:30:29 BoogieIcfgContainer [2024-11-24 00:30:29,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:30:29,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:30:29,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:30:29,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:30:29,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:30:19" (1/3) ... [2024-11-24 00:30:29,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e3aaad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:30:29, skipping insertion in model container [2024-11-24 00:30:29,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:21" (2/3) ... [2024-11-24 00:30:29,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e3aaad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:30:29, skipping insertion in model container [2024-11-24 00:30:29,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:30:29" (3/3) ... [2024-11-24 00:30:29,882 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2024-11-24 00:30:29,899 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:30:29,900 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. [2024-11-24 00:30:29,997 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:30:30,013 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;@61f87669, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:30:30,013 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:30:30,022 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) [2024-11-24 00:30:30,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 00:30:30,044 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:30,045 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] [2024-11-24 00:30:30,045 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:30,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:30,052 INFO L85 PathProgramCache]: Analyzing trace with hash -205434704, now seen corresponding path program 1 times [2024-11-24 00:30:30,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:30,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82382691] [2024-11-24 00:30:30,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:30,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:32,037 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-24 00:30:32,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:32,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82382691] [2024-11-24 00:30:32,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82382691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:30:32,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642130994] [2024-11-24 00:30:32,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:32,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:32,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:32,042 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:30:32,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:30:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:33,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 1915 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:30:33,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:30:34,038 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-11-24 00:30:34,038 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:30:34,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642130994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:34,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:30:34,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:30:34,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596049296] [2024-11-24 00:30:34,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:34,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:30:34,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:34,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:30:34,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:30:34,084 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) [2024-11-24 00:30:34,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:34,181 INFO L93 Difference]: Finished difference Result 1081 states and 1510 transitions. [2024-11-24 00:30:34,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:30:34,183 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 [2024-11-24 00:30:34,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:34,199 INFO L225 Difference]: With dead ends: 1081 [2024-11-24 00:30:34,200 INFO L226 Difference]: Without dead ends: 532 [2024-11-24 00:30:34,207 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 [2024-11-24 00:30:34,212 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 [2024-11-24 00:30:34,212 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] [2024-11-24 00:30:34,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-24 00:30:34,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-11-24 00:30:34,332 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) [2024-11-24 00:30:34,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 714 transitions. [2024-11-24 00:30:34,350 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 714 transitions. Word has length 168 [2024-11-24 00:30:34,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:34,351 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 714 transitions. [2024-11-24 00:30:34,351 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) [2024-11-24 00:30:34,351 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 714 transitions. [2024-11-24 00:30:34,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 00:30:34,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:34,357 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] [2024-11-24 00:30:34,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:30:34,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:30:34,566 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:34,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:34,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1676755644, now seen corresponding path program 1 times [2024-11-24 00:30:34,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:34,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630405914] [2024-11-24 00:30:34,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:34,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:36,223 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-24 00:30:36,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:36,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630405914] [2024-11-24 00:30:36,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630405914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:36,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:36,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:36,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808454430] [2024-11-24 00:30:36,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:36,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:36,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:36,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:36,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:36,227 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) [2024-11-24 00:30:40,259 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 [] [2024-11-24 00:30:40,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:40,468 INFO L93 Difference]: Finished difference Result 1503 states and 2015 transitions. [2024-11-24 00:30:40,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:30:40,469 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 [2024-11-24 00:30:40,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:40,477 INFO L225 Difference]: With dead ends: 1503 [2024-11-24 00:30:40,478 INFO L226 Difference]: Without dead ends: 1007 [2024-11-24 00:30:40,480 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 [2024-11-24 00:30:40,481 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 [2024-11-24 00:30:40,481 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] [2024-11-24 00:30:40,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2024-11-24 00:30:40,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 1001. [2024-11-24 00:30:40,557 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) [2024-11-24 00:30:40,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1343 transitions. [2024-11-24 00:30:40,574 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1343 transitions. Word has length 168 [2024-11-24 00:30:40,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:40,575 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1343 transitions. [2024-11-24 00:30:40,575 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) [2024-11-24 00:30:40,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1343 transitions. [2024-11-24 00:30:40,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-24 00:30:40,582 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:40,582 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] [2024-11-24 00:30:40,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:30:40,582 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:40,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:40,586 INFO L85 PathProgramCache]: Analyzing trace with hash -558984291, now seen corresponding path program 1 times [2024-11-24 00:30:40,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:40,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580021596] [2024-11-24 00:30:40,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:40,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:41,938 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-24 00:30:41,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:41,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580021596] [2024-11-24 00:30:41,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580021596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:41,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:41,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:41,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073903491] [2024-11-24 00:30:41,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:41,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:41,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:41,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:41,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:41,940 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) [2024-11-24 00:30:42,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:42,296 INFO L93 Difference]: Finished difference Result 2451 states and 3233 transitions. [2024-11-24 00:30:42,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:30:42,298 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 [2024-11-24 00:30:42,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:42,315 INFO L225 Difference]: With dead ends: 2451 [2024-11-24 00:30:42,315 INFO L226 Difference]: Without dead ends: 1486 [2024-11-24 00:30:42,318 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 [2024-11-24 00:30:42,319 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 [2024-11-24 00:30:42,321 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] [2024-11-24 00:30:42,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2024-11-24 00:30:42,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1460. [2024-11-24 00:30:42,433 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) [2024-11-24 00:30:42,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 1910 transitions. [2024-11-24 00:30:42,446 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 1910 transitions. Word has length 175 [2024-11-24 00:30:42,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:42,448 INFO L471 AbstractCegarLoop]: Abstraction has 1460 states and 1910 transitions. [2024-11-24 00:30:42,448 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) [2024-11-24 00:30:42,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 1910 transitions. [2024-11-24 00:30:42,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-24 00:30:42,452 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:42,452 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] [2024-11-24 00:30:42,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:30:42,453 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:42,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:42,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1973412285, now seen corresponding path program 1 times [2024-11-24 00:30:42,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:42,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187496874] [2024-11-24 00:30:42,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:42,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:43,664 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-24 00:30:43,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:43,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187496874] [2024-11-24 00:30:43,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187496874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:43,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:43,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:43,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084458128] [2024-11-24 00:30:43,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:43,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:43,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:43,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:43,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:43,668 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) [2024-11-24 00:30:43,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:43,795 INFO L93 Difference]: Finished difference Result 1482 states and 1936 transitions. [2024-11-24 00:30:43,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:30:43,796 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 [2024-11-24 00:30:43,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:43,812 INFO L225 Difference]: With dead ends: 1482 [2024-11-24 00:30:43,812 INFO L226 Difference]: Without dead ends: 1471 [2024-11-24 00:30:43,813 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 [2024-11-24 00:30:43,816 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 [2024-11-24 00:30:43,817 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] [2024-11-24 00:30:43,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2024-11-24 00:30:43,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1460. [2024-11-24 00:30:43,931 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) [2024-11-24 00:30:43,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 1908 transitions. [2024-11-24 00:30:43,948 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 1908 transitions. Word has length 173 [2024-11-24 00:30:43,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:43,949 INFO L471 AbstractCegarLoop]: Abstraction has 1460 states and 1908 transitions. [2024-11-24 00:30:43,949 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) [2024-11-24 00:30:43,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 1908 transitions. [2024-11-24 00:30:43,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-24 00:30:43,953 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:43,954 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] [2024-11-24 00:30:43,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:30:43,954 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:43,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:43,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1916153983, now seen corresponding path program 1 times [2024-11-24 00:30:43,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:43,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667791424] [2024-11-24 00:30:43,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:43,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:45,257 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-24 00:30:45,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:45,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667791424] [2024-11-24 00:30:45,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667791424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:45,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:45,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:45,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209593222] [2024-11-24 00:30:45,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:45,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:45,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:45,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:45,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:45,259 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) [2024-11-24 00:30:45,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:45,351 INFO L93 Difference]: Finished difference Result 1462 states and 1909 transitions. [2024-11-24 00:30:45,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:30:45,352 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 [2024-11-24 00:30:45,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:45,369 INFO L225 Difference]: With dead ends: 1462 [2024-11-24 00:30:45,369 INFO L226 Difference]: Without dead ends: 1459 [2024-11-24 00:30:45,371 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 [2024-11-24 00:30:45,372 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 [2024-11-24 00:30:45,372 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] [2024-11-24 00:30:45,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2024-11-24 00:30:45,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1459. [2024-11-24 00:30:45,494 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) [2024-11-24 00:30:45,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 1906 transitions. [2024-11-24 00:30:45,511 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 1906 transitions. Word has length 173 [2024-11-24 00:30:45,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:45,511 INFO L471 AbstractCegarLoop]: Abstraction has 1459 states and 1906 transitions. [2024-11-24 00:30:45,512 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) [2024-11-24 00:30:45,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 1906 transitions. [2024-11-24 00:30:45,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-24 00:30:45,518 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:45,518 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] [2024-11-24 00:30:45,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:30:45,518 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:45,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:45,522 INFO L85 PathProgramCache]: Analyzing trace with hash 728662927, now seen corresponding path program 1 times [2024-11-24 00:30:45,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:45,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556224138] [2024-11-24 00:30:45,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:45,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:47,003 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-24 00:30:47,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:47,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556224138] [2024-11-24 00:30:47,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556224138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:47,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:47,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:47,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214626701] [2024-11-24 00:30:47,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:47,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:47,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:47,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:47,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:47,006 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) [2024-11-24 00:30:47,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:47,150 INFO L93 Difference]: Finished difference Result 1461 states and 1907 transitions. [2024-11-24 00:30:47,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:30:47,150 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 [2024-11-24 00:30:47,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:47,160 INFO L225 Difference]: With dead ends: 1461 [2024-11-24 00:30:47,161 INFO L226 Difference]: Without dead ends: 1458 [2024-11-24 00:30:47,162 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 [2024-11-24 00:30:47,162 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 [2024-11-24 00:30:47,163 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] [2024-11-24 00:30:47,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2024-11-24 00:30:47,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1458. [2024-11-24 00:30:47,279 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) [2024-11-24 00:30:47,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1904 transitions. [2024-11-24 00:30:47,293 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1904 transitions. Word has length 174 [2024-11-24 00:30:47,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:47,294 INFO L471 AbstractCegarLoop]: Abstraction has 1458 states and 1904 transitions. [2024-11-24 00:30:47,294 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) [2024-11-24 00:30:47,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1904 transitions. [2024-11-24 00:30:47,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-24 00:30:47,297 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:47,297 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] [2024-11-24 00:30:47,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:30:47,298 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:47,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:47,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1158057193, now seen corresponding path program 1 times [2024-11-24 00:30:47,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:47,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190642843] [2024-11-24 00:30:47,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:47,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:48,542 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-24 00:30:48,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:48,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190642843] [2024-11-24 00:30:48,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190642843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:48,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:48,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:48,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199293739] [2024-11-24 00:30:48,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:48,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:48,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:48,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:48,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:48,545 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) [2024-11-24 00:30:48,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:48,843 INFO L93 Difference]: Finished difference Result 3769 states and 4898 transitions. [2024-11-24 00:30:48,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:30:48,844 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 [2024-11-24 00:30:48,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:48,863 INFO L225 Difference]: With dead ends: 3769 [2024-11-24 00:30:48,863 INFO L226 Difference]: Without dead ends: 2357 [2024-11-24 00:30:48,869 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 [2024-11-24 00:30:48,871 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 [2024-11-24 00:30:48,872 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] [2024-11-24 00:30:48,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2024-11-24 00:30:49,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 2330. [2024-11-24 00:30:49,043 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) [2024-11-24 00:30:49,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 3021 transitions. [2024-11-24 00:30:49,068 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 3021 transitions. Word has length 178 [2024-11-24 00:30:49,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:49,072 INFO L471 AbstractCegarLoop]: Abstraction has 2330 states and 3021 transitions. [2024-11-24 00:30:49,072 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) [2024-11-24 00:30:49,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 3021 transitions. [2024-11-24 00:30:49,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-24 00:30:49,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:49,075 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] [2024-11-24 00:30:49,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:30:49,076 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:49,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:49,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1113613380, now seen corresponding path program 1 times [2024-11-24 00:30:49,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:49,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218888193] [2024-11-24 00:30:49,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:49,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:50,161 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-24 00:30:50,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:50,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218888193] [2024-11-24 00:30:50,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218888193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:50,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:50,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:50,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301660396] [2024-11-24 00:30:50,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:50,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:50,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:50,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:50,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:50,163 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) [2024-11-24 00:30:50,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:50,302 INFO L93 Difference]: Finished difference Result 2332 states and 3022 transitions. [2024-11-24 00:30:50,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:30:50,303 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 [2024-11-24 00:30:50,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:50,319 INFO L225 Difference]: With dead ends: 2332 [2024-11-24 00:30:50,320 INFO L226 Difference]: Without dead ends: 2329 [2024-11-24 00:30:50,322 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 [2024-11-24 00:30:50,322 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 [2024-11-24 00:30:50,323 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] [2024-11-24 00:30:50,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2024-11-24 00:30:50,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2024-11-24 00:30:50,514 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) [2024-11-24 00:30:50,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 3019 transitions. [2024-11-24 00:30:50,533 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 3019 transitions. Word has length 175 [2024-11-24 00:30:50,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:50,534 INFO L471 AbstractCegarLoop]: Abstraction has 2329 states and 3019 transitions. [2024-11-24 00:30:50,534 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) [2024-11-24 00:30:50,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 3019 transitions. [2024-11-24 00:30:50,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-24 00:30:50,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:50,537 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] [2024-11-24 00:30:50,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:30:50,538 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:50,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:50,538 INFO L85 PathProgramCache]: Analyzing trace with hash 162180402, now seen corresponding path program 1 times [2024-11-24 00:30:50,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:50,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540528368] [2024-11-24 00:30:50,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:50,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:51,600 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-24 00:30:51,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:51,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540528368] [2024-11-24 00:30:51,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540528368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:51,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:51,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:51,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403328709] [2024-11-24 00:30:51,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:51,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:51,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:51,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:51,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:51,605 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) [2024-11-24 00:30:51,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:51,963 INFO L93 Difference]: Finished difference Result 6413 states and 8465 transitions. [2024-11-24 00:30:51,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:30:51,963 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 [2024-11-24 00:30:51,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:51,997 INFO L225 Difference]: With dead ends: 6413 [2024-11-24 00:30:51,997 INFO L226 Difference]: Without dead ends: 4126 [2024-11-24 00:30:52,006 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 [2024-11-24 00:30:52,009 INFO L435 NwaCegarLoop]: 862 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, 1421 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 [2024-11-24 00:30:52,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 1421 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:30:52,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4126 states. [2024-11-24 00:30:52,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4126 to 4084. [2024-11-24 00:30:52,354 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) [2024-11-24 00:30:52,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4084 states to 4084 states and 5403 transitions. [2024-11-24 00:30:52,387 INFO L78 Accepts]: Start accepts. Automaton has 4084 states and 5403 transitions. Word has length 176 [2024-11-24 00:30:52,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:52,388 INFO L471 AbstractCegarLoop]: Abstraction has 4084 states and 5403 transitions. [2024-11-24 00:30:52,388 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) [2024-11-24 00:30:52,388 INFO L276 IsEmpty]: Start isEmpty. Operand 4084 states and 5403 transitions. [2024-11-24 00:30:52,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-24 00:30:52,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:52,397 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] [2024-11-24 00:30:52,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:30:52,398 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:52,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:52,398 INFO L85 PathProgramCache]: Analyzing trace with hash 908328443, now seen corresponding path program 1 times [2024-11-24 00:30:52,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:52,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214256243] [2024-11-24 00:30:52,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:52,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:53,783 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2024-11-24 00:30:53,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:53,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214256243] [2024-11-24 00:30:53,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214256243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:53,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:53,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:30:53,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100417257] [2024-11-24 00:30:53,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:53,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:30:53,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:53,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:30:53,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:30:53,787 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) [2024-11-24 00:30:57,817 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 [] [2024-11-24 00:30:58,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:58,422 INFO L93 Difference]: Finished difference Result 9760 states and 12931 transitions. [2024-11-24 00:30:58,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:30:58,423 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 [2024-11-24 00:30:58,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:58,464 INFO L225 Difference]: With dead ends: 9760 [2024-11-24 00:30:58,465 INFO L226 Difference]: Without dead ends: 5726 [2024-11-24 00:30:58,480 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 [2024-11-24 00:30:58,481 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 [2024-11-24 00:30:58,484 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] [2024-11-24 00:30:58,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5726 states. [2024-11-24 00:30:58,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5726 to 5678. [2024-11-24 00:30:58,909 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) [2024-11-24 00:30:58,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5678 states to 5678 states and 7499 transitions. [2024-11-24 00:30:58,958 INFO L78 Accepts]: Start accepts. Automaton has 5678 states and 7499 transitions. Word has length 230 [2024-11-24 00:30:58,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:58,959 INFO L471 AbstractCegarLoop]: Abstraction has 5678 states and 7499 transitions. [2024-11-24 00:30:58,963 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) [2024-11-24 00:30:58,963 INFO L276 IsEmpty]: Start isEmpty. Operand 5678 states and 7499 transitions. [2024-11-24 00:30:58,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-24 00:30:58,976 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:58,976 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] [2024-11-24 00:30:58,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:30:58,977 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:58,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:58,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1621206871, now seen corresponding path program 1 times [2024-11-24 00:30:58,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:58,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567125846] [2024-11-24 00:30:58,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:58,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:00,431 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2024-11-24 00:31:00,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:00,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567125846] [2024-11-24 00:31:00,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567125846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:00,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:00,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:31:00,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399439802] [2024-11-24 00:31:00,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:00,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:31:00,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:00,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:31:00,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:31:00,437 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) [2024-11-24 00:31:04,466 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 [] [2024-11-24 00:31:05,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:05,189 INFO L93 Difference]: Finished difference Result 13636 states and 17961 transitions. [2024-11-24 00:31:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:31:05,193 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 [2024-11-24 00:31:05,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:05,256 INFO L225 Difference]: With dead ends: 13636 [2024-11-24 00:31:05,256 INFO L226 Difference]: Without dead ends: 8008 [2024-11-24 00:31:05,277 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 [2024-11-24 00:31:05,277 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 [2024-11-24 00:31:05,278 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] [2024-11-24 00:31:05,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8008 states. [2024-11-24 00:31:05,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8008 to 5694. [2024-11-24 00:31:05,851 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) [2024-11-24 00:31:05,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5694 states to 5694 states and 7515 transitions. [2024-11-24 00:31:05,891 INFO L78 Accepts]: Start accepts. Automaton has 5694 states and 7515 transitions. Word has length 260 [2024-11-24 00:31:05,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:05,892 INFO L471 AbstractCegarLoop]: Abstraction has 5694 states and 7515 transitions. [2024-11-24 00:31:05,893 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) [2024-11-24 00:31:05,895 INFO L276 IsEmpty]: Start isEmpty. Operand 5694 states and 7515 transitions. [2024-11-24 00:31:05,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-24 00:31:05,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:05,900 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] [2024-11-24 00:31:05,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:31:05,901 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:05,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:05,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1407473805, now seen corresponding path program 1 times [2024-11-24 00:31:05,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:05,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072484348] [2024-11-24 00:31:05,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:05,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:07,128 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-11-24 00:31:07,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:07,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072484348] [2024-11-24 00:31:07,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072484348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:07,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:07,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:31:07,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499648246] [2024-11-24 00:31:07,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:07,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:31:07,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:07,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:31:07,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:31:07,132 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) [2024-11-24 00:31:07,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:07,741 INFO L93 Difference]: Finished difference Result 11338 states and 14987 transitions. [2024-11-24 00:31:07,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:31:07,742 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 [2024-11-24 00:31:07,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:07,778 INFO L225 Difference]: With dead ends: 11338 [2024-11-24 00:31:07,778 INFO L226 Difference]: Without dead ends: 5694 [2024-11-24 00:31:07,797 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 [2024-11-24 00:31:07,798 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 [2024-11-24 00:31:07,798 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] [2024-11-24 00:31:07,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5694 states. [2024-11-24 00:31:08,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5694 to 5694. [2024-11-24 00:31:08,225 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) [2024-11-24 00:31:08,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5694 states to 5694 states and 7467 transitions. [2024-11-24 00:31:08,256 INFO L78 Accepts]: Start accepts. Automaton has 5694 states and 7467 transitions. Word has length 260 [2024-11-24 00:31:08,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:08,257 INFO L471 AbstractCegarLoop]: Abstraction has 5694 states and 7467 transitions. [2024-11-24 00:31:08,257 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) [2024-11-24 00:31:08,257 INFO L276 IsEmpty]: Start isEmpty. Operand 5694 states and 7467 transitions. [2024-11-24 00:31:08,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-24 00:31:08,263 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:08,264 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] [2024-11-24 00:31:08,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:31:08,264 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:08,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:08,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1373568888, now seen corresponding path program 1 times [2024-11-24 00:31:08,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:08,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145599101] [2024-11-24 00:31:08,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:08,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:09,652 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-11-24 00:31:09,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:09,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145599101] [2024-11-24 00:31:09,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145599101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:09,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:09,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:31:09,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152088954] [2024-11-24 00:31:09,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:09,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:31:09,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:09,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:31:09,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:31:09,655 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) [2024-11-24 00:31:13,680 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 [] [2024-11-24 00:31:14,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:14,112 INFO L93 Difference]: Finished difference Result 11340 states and 14872 transitions. [2024-11-24 00:31:14,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:31:14,113 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 [2024-11-24 00:31:14,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:14,168 INFO L225 Difference]: With dead ends: 11340 [2024-11-24 00:31:14,168 INFO L226 Difference]: Without dead ends: 5696 [2024-11-24 00:31:14,189 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 [2024-11-24 00:31:14,190 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 [2024-11-24 00:31:14,191 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] [2024-11-24 00:31:14,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5696 states. [2024-11-24 00:31:14,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5696 to 5567. [2024-11-24 00:31:14,606 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) [2024-11-24 00:31:14,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5567 states to 5567 states and 7217 transitions. [2024-11-24 00:31:14,635 INFO L78 Accepts]: Start accepts. Automaton has 5567 states and 7217 transitions. Word has length 262 [2024-11-24 00:31:14,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:14,636 INFO L471 AbstractCegarLoop]: Abstraction has 5567 states and 7217 transitions. [2024-11-24 00:31:14,636 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) [2024-11-24 00:31:14,636 INFO L276 IsEmpty]: Start isEmpty. Operand 5567 states and 7217 transitions. [2024-11-24 00:31:14,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-24 00:31:14,641 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:14,642 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] [2024-11-24 00:31:14,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:31:14,642 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:14,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:14,643 INFO L85 PathProgramCache]: Analyzing trace with hash 93705210, now seen corresponding path program 1 times [2024-11-24 00:31:14,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:14,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615668535] [2024-11-24 00:31:14,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:14,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:15,854 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-11-24 00:31:15,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:15,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615668535] [2024-11-24 00:31:15,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615668535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:15,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:15,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:31:15,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412924261] [2024-11-24 00:31:15,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:15,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:31:15,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:15,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:31:15,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:31:15,858 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) [2024-11-24 00:31:16,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:16,397 INFO L93 Difference]: Finished difference Result 5594 states and 7253 transitions. [2024-11-24 00:31:16,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:31:16,398 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 [2024-11-24 00:31:16,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:16,428 INFO L225 Difference]: With dead ends: 5594 [2024-11-24 00:31:16,429 INFO L226 Difference]: Without dead ends: 5572 [2024-11-24 00:31:16,431 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 [2024-11-24 00:31:16,431 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 [2024-11-24 00:31:16,432 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] [2024-11-24 00:31:16,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5572 states. [2024-11-24 00:31:16,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5572 to 5558. [2024-11-24 00:31:16,825 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) [2024-11-24 00:31:16,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5558 states to 5558 states and 7202 transitions. [2024-11-24 00:31:16,852 INFO L78 Accepts]: Start accepts. Automaton has 5558 states and 7202 transitions. Word has length 262 [2024-11-24 00:31:16,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:16,852 INFO L471 AbstractCegarLoop]: Abstraction has 5558 states and 7202 transitions. [2024-11-24 00:31:16,853 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) [2024-11-24 00:31:16,853 INFO L276 IsEmpty]: Start isEmpty. Operand 5558 states and 7202 transitions. [2024-11-24 00:31:16,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-24 00:31:16,859 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:16,860 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] [2024-11-24 00:31:16,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:31:16,860 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:16,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:16,861 INFO L85 PathProgramCache]: Analyzing trace with hash -886510679, now seen corresponding path program 1 times [2024-11-24 00:31:16,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:16,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697311889] [2024-11-24 00:31:16,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:16,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:18,560 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2024-11-24 00:31:18,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:18,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697311889] [2024-11-24 00:31:18,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697311889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:18,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:18,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:31:18,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387034125] [2024-11-24 00:31:18,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:18,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:31:18,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:18,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:31:18,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:31:18,564 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) [2024-11-24 00:31:19,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:19,025 INFO L93 Difference]: Finished difference Result 11052 states and 14329 transitions. [2024-11-24 00:31:19,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:31:19,026 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 [2024-11-24 00:31:19,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:19,060 INFO L225 Difference]: With dead ends: 11052 [2024-11-24 00:31:19,060 INFO L226 Difference]: Without dead ends: 5544 [2024-11-24 00:31:19,077 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 [2024-11-24 00:31:19,077 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 [2024-11-24 00:31:19,078 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] [2024-11-24 00:31:19,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5544 states. [2024-11-24 00:31:19,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5544 to 5544. [2024-11-24 00:31:19,493 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) [2024-11-24 00:31:19,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5544 states to 5544 states and 7184 transitions. [2024-11-24 00:31:19,522 INFO L78 Accepts]: Start accepts. Automaton has 5544 states and 7184 transitions. Word has length 295 [2024-11-24 00:31:19,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:19,523 INFO L471 AbstractCegarLoop]: Abstraction has 5544 states and 7184 transitions. [2024-11-24 00:31:19,524 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) [2024-11-24 00:31:19,524 INFO L276 IsEmpty]: Start isEmpty. Operand 5544 states and 7184 transitions. [2024-11-24 00:31:19,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-24 00:31:19,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:19,537 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] [2024-11-24 00:31:19,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:31:19,538 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:19,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:19,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1844646473, now seen corresponding path program 1 times [2024-11-24 00:31:19,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:19,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121160159] [2024-11-24 00:31:19,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:19,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:21,911 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2024-11-24 00:31:21,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:21,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121160159] [2024-11-24 00:31:21,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121160159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:21,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:21,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:31:21,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113131108] [2024-11-24 00:31:21,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:21,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:31:21,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:21,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:31:21,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:31:21,916 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) [2024-11-24 00:31:22,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:22,334 INFO L93 Difference]: Finished difference Result 5591 states and 7236 transitions. [2024-11-24 00:31:22,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:31:22,334 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 [2024-11-24 00:31:22,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:22,364 INFO L225 Difference]: With dead ends: 5591 [2024-11-24 00:31:22,364 INFO L226 Difference]: Without dead ends: 5499 [2024-11-24 00:31:22,367 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 [2024-11-24 00:31:22,368 INFO L435 NwaCegarLoop]: 707 mSDtfsCounter, 1 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:22,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3517 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:31:22,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5499 states. [2024-11-24 00:31:22,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5499 to 5475. [2024-11-24 00:31:22,711 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) [2024-11-24 00:31:22,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 7066 transitions. [2024-11-24 00:31:22,739 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 7066 transitions. Word has length 351 [2024-11-24 00:31:22,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:22,740 INFO L471 AbstractCegarLoop]: Abstraction has 5475 states and 7066 transitions. [2024-11-24 00:31:22,740 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) [2024-11-24 00:31:22,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 7066 transitions. [2024-11-24 00:31:22,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-24 00:31:22,755 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:22,756 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] [2024-11-24 00:31:22,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:31:22,756 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:22,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:22,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1329332030, now seen corresponding path program 1 times [2024-11-24 00:31:22,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:22,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534948347] [2024-11-24 00:31:22,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:22,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:24,717 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2024-11-24 00:31:24,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:24,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534948347] [2024-11-24 00:31:24,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534948347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:24,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:24,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:31:24,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574290486] [2024-11-24 00:31:24,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:24,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:31:24,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:24,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:31:24,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:31:24,723 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) [2024-11-24 00:31:25,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:25,206 INFO L93 Difference]: Finished difference Result 5661 states and 7243 transitions. [2024-11-24 00:31:25,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:31:25,207 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 [2024-11-24 00:31:25,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:25,236 INFO L225 Difference]: With dead ends: 5661 [2024-11-24 00:31:25,237 INFO L226 Difference]: Without dead ends: 5161 [2024-11-24 00:31:25,239 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 [2024-11-24 00:31:25,241 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 [2024-11-24 00:31:25,241 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] [2024-11-24 00:31:25,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5161 states. [2024-11-24 00:31:25,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5161 to 5137. [2024-11-24 00:31:25,652 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) [2024-11-24 00:31:25,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 6612 transitions. [2024-11-24 00:31:25,677 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 6612 transitions. Word has length 358 [2024-11-24 00:31:25,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:25,679 INFO L471 AbstractCegarLoop]: Abstraction has 5137 states and 6612 transitions. [2024-11-24 00:31:25,679 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) [2024-11-24 00:31:25,679 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 6612 transitions. [2024-11-24 00:31:25,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-11-24 00:31:25,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:25,696 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] [2024-11-24 00:31:25,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:31:25,697 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:25,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:25,698 INFO L85 PathProgramCache]: Analyzing trace with hash 923314967, now seen corresponding path program 1 times [2024-11-24 00:31:25,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:25,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139022494] [2024-11-24 00:31:25,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:25,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:27,669 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2024-11-24 00:31:27,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:27,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139022494] [2024-11-24 00:31:27,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139022494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:27,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:27,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:31:27,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972231009] [2024-11-24 00:31:27,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:27,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:31:27,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:27,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:31:27,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:31:27,674 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) [2024-11-24 00:31:28,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:28,411 INFO L93 Difference]: Finished difference Result 10284 states and 13287 transitions. [2024-11-24 00:31:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:31:28,417 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 [2024-11-24 00:31:28,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:28,448 INFO L225 Difference]: With dead ends: 10284 [2024-11-24 00:31:28,449 INFO L226 Difference]: Without dead ends: 5197 [2024-11-24 00:31:28,460 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 [2024-11-24 00:31:28,461 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:28,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 3500 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:31:28,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5197 states. [2024-11-24 00:31:28,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5197 to 5173. [2024-11-24 00:31:28,804 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) [2024-11-24 00:31:28,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 6666 transitions. [2024-11-24 00:31:28,831 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 6666 transitions. Word has length 360 [2024-11-24 00:31:28,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:28,832 INFO L471 AbstractCegarLoop]: Abstraction has 5173 states and 6666 transitions. [2024-11-24 00:31:28,832 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) [2024-11-24 00:31:28,832 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 6666 transitions. [2024-11-24 00:31:28,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-11-24 00:31:28,855 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:28,856 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] [2024-11-24 00:31:28,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:31:28,856 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:28,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:28,857 INFO L85 PathProgramCache]: Analyzing trace with hash -256670114, now seen corresponding path program 1 times [2024-11-24 00:31:28,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:28,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591922496] [2024-11-24 00:31:28,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:28,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:30,693 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2024-11-24 00:31:30,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:30,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591922496] [2024-11-24 00:31:30,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591922496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:30,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:30,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:31:30,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779492408] [2024-11-24 00:31:30,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:30,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:31:30,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:30,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:31:30,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:31:30,697 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) [2024-11-24 00:31:31,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:31,104 INFO L93 Difference]: Finished difference Result 5381 states and 6858 transitions. [2024-11-24 00:31:31,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:31:31,105 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 [2024-11-24 00:31:31,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:31,116 INFO L225 Difference]: With dead ends: 5381 [2024-11-24 00:31:31,116 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 00:31:31,131 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 [2024-11-24 00:31:31,131 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 [2024-11-24 00:31:31,132 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] [2024-11-24 00:31:31,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 00:31:31,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 00:31:31,133 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) [2024-11-24 00:31:31,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 00:31:31,140 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 366 [2024-11-24 00:31:31,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:31,141 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:31:31,141 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) [2024-11-24 00:31:31,141 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 00:31:31,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 00:31:31,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:31:31,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:31:31,150 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] [2024-11-24 00:31:31,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 00:32:40,722 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:32:40,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:32:40 BoogieIcfgContainer [2024-11-24 00:32:40,747 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:32:40,748 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:32:40,748 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:32:40,749 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:32:40,750 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:30:29" (3/4) ... [2024-11-24 00:32:40,752 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 00:32:40,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2024-11-24 00:32:40,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_unlock_serio_raw_mutex [2024-11-24 00:32:40,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kill_fasync [2024-11-24 00:32:40,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_file_operations_2 [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_get_drvdata [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure warn_slowpath_null [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del_init [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add_tail [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_set_drvdata [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kref_sub [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure INIT_LIST_HEAD [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_unlock [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __might_fault [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __dynamic_dev_dbg [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~VOID [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2024-11-24 00:32:40,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.meminit [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure misc_register [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kref_put [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_raw_disconnect [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_close [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_continue_rx [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_serio_raw_mutex [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __wake_up [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_init_zalloc [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_pause_rx [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_raw_write [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_raw_fasync [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure serio_raw_poll [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock_interruptible [2024-11-24 00:32:40,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock [2024-11-24 00:32:40,760 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_memset [2024-11-24 00:32:40,761 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure atomic_add_return [2024-11-24 00:32:40,804 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 193 nodes and edges [2024-11-24 00:32:40,807 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 68 nodes and edges [2024-11-24 00:32:40,810 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-24 00:32:40,814 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 00:32:40,816 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 00:32:40,879 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)) [2024-11-24 00:32:40,880 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)) [2024-11-24 00:32:41,070 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)) [2024-11-24 00:32:41,075 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)) [2024-11-24 00:32:41,169 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:32:41,169 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:32:41,169 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:32:41,170 INFO L158 Benchmark]: Toolchain (without parser) took 141375.64ms. Allocated memory was 117.4MB in the beginning and 838.9MB in the end (delta: 721.4MB). Free memory was 79.9MB in the beginning and 540.1MB in the end (delta: -460.2MB). Peak memory consumption was 261.2MB. Max. memory is 16.1GB. [2024-11-24 00:32:41,171 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:32:41,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1833.45ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 42.0MB in the end (delta: 37.6MB). Peak memory consumption was 62.5MB. Max. memory is 16.1GB. [2024-11-24 00:32:41,173 INFO L158 Benchmark]: Boogie Procedure Inliner took 215.20ms. Allocated memory is still 117.4MB. Free memory was 42.0MB in the beginning and 71.5MB in the end (delta: -29.5MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2024-11-24 00:32:41,174 INFO L158 Benchmark]: Boogie Preprocessor took 357.74ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 71.5MB in the beginning and 231.8MB in the end (delta: -160.3MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. [2024-11-24 00:32:41,175 INFO L158 Benchmark]: RCFGBuilder took 7666.92ms. Allocated memory is still 285.2MB. Free memory was 231.8MB in the beginning and 219.0MB in the end (delta: 12.8MB). Peak memory consumption was 161.3MB. Max. memory is 16.1GB. [2024-11-24 00:32:41,175 INFO L158 Benchmark]: TraceAbstraction took 130873.04ms. Allocated memory was 285.2MB in the beginning and 838.9MB in the end (delta: 553.6MB). Free memory was 216.6MB in the beginning and 565.3MB in the end (delta: -348.7MB). Peak memory consumption was 531.9MB. Max. memory is 16.1GB. [2024-11-24 00:32:41,176 INFO L158 Benchmark]: Witness Printer took 421.36ms. Allocated memory is still 838.9MB. Free memory was 565.3MB in the beginning and 540.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 00:32:41,178 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1833.45ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 42.0MB in the end (delta: 37.6MB). Peak memory consumption was 62.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 215.20ms. Allocated memory is still 117.4MB. Free memory was 42.0MB in the beginning and 71.5MB in the end (delta: -29.5MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 357.74ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 71.5MB in the beginning and 231.8MB in the end (delta: -160.3MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. * RCFGBuilder took 7666.92ms. Allocated memory is still 285.2MB. Free memory was 231.8MB in the beginning and 219.0MB in the end (delta: 12.8MB). Peak memory consumption was 161.3MB. Max. memory is 16.1GB. * TraceAbstraction took 130873.04ms. Allocated memory was 285.2MB in the beginning and 838.9MB in the end (delta: 553.6MB). Free memory was 216.6MB in the beginning and 565.3MB in the end (delta: -348.7MB). Peak memory consumption was 531.9MB. Max. memory is 16.1GB. * Witness Printer took 421.36ms. Allocated memory is still 838.9MB. Free memory was 565.3MB in the beginning and 540.1MB in the end (delta: 25.2MB). 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: 61.2s, OverallIterations: 19, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 24.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 6769 SdHoareTripleChecker+Valid, 17.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6747 mSDsluCounter, 37104 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, 15343 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, 0.7s 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: 5.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 2689 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 9.0s 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! [2024-11-24 00:32:41,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84941c58-6e5c-4613-a5ea-6df9dfd131b0/bin/uautomizer-verify-LYvppIcaGC/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