./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--mousedev.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9f3d350bd080191df0ee186561630fc29ade38a40dcbac29157c72de91ff9d1d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:59:48,907 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:59:48,990 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 03:59:48,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:59:48,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:59:49,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:59:49,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:59:49,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:59:49,041 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:59:49,042 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:59:49,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:59:49,042 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:59:49,042 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:59:49,042 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:59:49,046 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:59:49,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:59:49,046 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:59:49,046 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:59:49,046 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:59:49,047 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:59:49,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:59:49,047 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:59:49,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:59:49,047 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:59:49,047 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:59:49,047 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:59:49,047 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:59:49,047 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:59:49,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:59:49,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:59:49,048 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:59:49,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:59:49,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:59:49,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:59:49,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:59:49,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:59:49,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:59:49,049 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:59:49,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:59:49,049 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:59:49,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:59:49,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:59:49,049 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:59:49,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:59:49,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:59:49,049 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_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f3d350bd080191df0ee186561630fc29ade38a40dcbac29157c72de91ff9d1d [2024-11-28 03:59:49,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:59:49,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:59:49,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:59:49,413 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:59:49,414 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:59:49,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2024-11-28 03:59:52,398 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/data/b7fe99605/9227dc6062134357a19b44b8cd9d8570/FLAG3d8be926d [2024-11-28 03:59:53,136 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:59:53,136 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2024-11-28 03:59:53,185 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/data/b7fe99605/9227dc6062134357a19b44b8cd9d8570/FLAG3d8be926d [2024-11-28 03:59:53,202 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/data/b7fe99605/9227dc6062134357a19b44b8cd9d8570 [2024-11-28 03:59:53,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:59:53,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:59:53,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:59:53,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:59:53,211 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:59:53,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:59:53" (1/1) ... [2024-11-28 03:59:53,212 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fb0e0b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:53, skipping insertion in model container [2024-11-28 03:59:53,212 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:59:53" (1/1) ... [2024-11-28 03:59:53,296 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:59:54,811 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_5f9caff2-f3bd-408d-808a-d91082cc353f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i[159905,159918] [2024-11-28 03:59:54,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:59:55,000 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:59:55,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3394] [2024-11-28 03:59:55,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3396] [2024-11-28 03:59:55,140 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; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3406] [2024-11-28 03:59:55,142 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; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [3413] [2024-11-28 03:59:55,157 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [3604] [2024-11-28 03:59:55,157 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [3607] [2024-11-28 03:59:55,157 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (val)); [3609] [2024-11-28 03:59:55,158 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [3614] [2024-11-28 03:59:55,159 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [3617] [2024-11-28 03:59:55,160 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [3619] [2024-11-28 03:59:55,160 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [3624] [2024-11-28 03:59:55,160 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [3627] [2024-11-28 03:59:55,164 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [3629] [2024-11-28 03:59:55,164 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [3634] [2024-11-28 03:59:55,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [3637] [2024-11-28 03:59:55,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (val)); [3639] [2024-11-28 03:59:55,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [3657] [2024-11-28 03:59:55,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [3660] [2024-11-28 03:59:55,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (- val)); [3662] [2024-11-28 03:59:55,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [3667] [2024-11-28 03:59:55,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [3670] [2024-11-28 03:59:55,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [3672] [2024-11-28 03:59:55,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [3677] [2024-11-28 03:59:55,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [3680] [2024-11-28 03:59:55,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [3682] [2024-11-28 03:59:55,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [3687] [2024-11-28 03:59:55,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [3690] [2024-11-28 03:59:55,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (- val)); [3692] [2024-11-28 03:59:55,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3760] [2024-11-28 03:59:55,175 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3767] [2024-11-28 03:59:55,270 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (buffer + (unsigned long )i), "i" (1UL)); [4719-4720] [2024-11-28 03:59:55,351 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_5f9caff2-f3bd-408d-808a-d91082cc353f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i[159905,159918] [2024-11-28 03:59:55,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:59:55,520 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:59:55,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:55 WrapperNode [2024-11-28 03:59:55,522 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:59:55,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:59:55,524 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:59:55,524 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:59:55,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:55" (1/1) ... [2024-11-28 03:59:55,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:55" (1/1) ... [2024-11-28 03:59:55,761 INFO L138 Inliner]: procedures = 259, calls = 1063, calls flagged for inlining = 115, calls inlined = 111, statements flattened = 2905 [2024-11-28 03:59:55,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:59:55,762 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:59:55,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:59:55,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:59:55,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:55" (1/1) ... [2024-11-28 03:59:55,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:55" (1/1) ... [2024-11-28 03:59:55,803 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:55" (1/1) ... [2024-11-28 03:59:56,144 INFO L175 MemorySlicer]: Split 550 memory accesses to 9 slices as follows [2, 35, 19, 13, 7, 13, 7, 442, 12]. 80 percent of accesses are in the largest equivalence class. The 35 initializations are split as follows [2, 6, 0, 13, 6, 0, 6, 2, 0]. The 298 writes are split as follows [0, 29, 1, 0, 0, 7, 0, 249, 12]. [2024-11-28 03:59:56,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:55" (1/1) ... [2024-11-28 03:59:56,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:55" (1/1) ... [2024-11-28 03:59:56,268 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:55" (1/1) ... [2024-11-28 03:59:56,281 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:55" (1/1) ... [2024-11-28 03:59:56,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:55" (1/1) ... [2024-11-28 03:59:56,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:55" (1/1) ... [2024-11-28 03:59:56,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:55" (1/1) ... [2024-11-28 03:59:56,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:59:56,384 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:59:56,384 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:59:56,384 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:59:56,386 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:55" (1/1) ... [2024-11-28 03:59:56,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:59:56,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:56,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:59:56,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:59:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_name [2024-11-28 03:59:56,454 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_name [2024-11-28 03:59:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-28 03:59:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-28 03:59:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-28 03:59:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-28 03:59:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-28 03:59:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-28 03:59:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-28 03:59:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-28 03:59:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-28 03:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 03:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 03:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 03:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 03:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 03:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 03:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 03:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 03:59:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-28 03:59:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-28 03:59:56,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-28 03:59:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_create [2024-11-28 03:59:56,457 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_create [2024-11-28 03:59:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-28 03:59:56,457 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-28 03:59:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2024-11-28 03:59:56,458 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2024-11-28 03:59:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-28 03:59:56,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-28 03:59:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-28 03:59:56,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-28 03:59:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_event [2024-11-28 03:59:56,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_event [2024-11-28 03:59:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-28 03:59:56,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-28 03:59:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_packet [2024-11-28 03:59:56,459 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_packet [2024-11-28 03:59:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-28 03:59:56,459 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-28 03:59:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 03:59:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 03:59:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 03:59:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-28 03:59:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-28 03:59:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-28 03:59:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-28 03:59:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-28 03:59:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-28 03:59:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 03:59:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 03:59:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 03:59:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-28 03:59:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-28 03:59:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-28 03:59:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-28 03:59:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-28 03:59:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-28 03:59:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:59:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:59:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-28 03:59:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-28 03:59:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_notify_readers [2024-11-28 03:59:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_notify_readers [2024-11-28 03:59:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-28 03:59:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-28 03:59:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:59:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-28 03:59:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-28 03:59:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_close_device [2024-11-28 03:59:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_close_device [2024-11-28 03:59:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:59:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:59:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 03:59:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 03:59:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 03:59:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 03:59:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 03:59:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 03:59:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-28 03:59:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_fasync [2024-11-28 03:59:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_fasync [2024-11-28 03:59:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2024-11-28 03:59:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2024-11-28 03:59:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mousedev [2024-11-28 03:59:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mousedev [2024-11-28 03:59:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_poll [2024-11-28 03:59:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_poll [2024-11-28 03:59:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-28 03:59:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-28 03:59:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2024-11-28 03:59:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2024-11-28 03:59:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2024-11-28 03:59:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2024-11-28 03:59:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:59:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_destroy [2024-11-28 03:59:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_destroy [2024-11-28 03:59:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 03:59:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 03:59:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 03:59:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 03:59:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 03:59:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 03:59:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 03:59:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 03:59:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-28 03:59:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-28 03:59:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-28 03:59:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2024-11-28 03:59:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2024-11-28 03:59:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2024-11-28 03:59:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2024-11-28 03:59:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-28 03:59:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-28 03:59:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_limit_delta [2024-11-28 03:59:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_limit_delta [2024-11-28 03:59:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-28 03:59:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-28 03:59:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-28 03:59:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-28 03:59:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-28 03:59:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-28 03:59:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-28 03:59:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-28 03:59:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-28 03:59:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-28 03:59:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-28 03:59:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-28 03:59:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-28 03:59:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-28 03:59:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-28 03:59:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 03:59:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 03:59:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 03:59:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 03:59:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 03:59:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 03:59:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 03:59:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 03:59:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-28 03:59:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:59:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:59:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:59:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:59:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 03:59:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 03:59:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 03:59:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 03:59:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 03:59:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_key_event [2024-11-28 03:59:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_key_event [2024-11-28 03:59:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-28 03:59:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-28 03:59:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-28 03:59:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-28 03:59:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-28 03:59:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-28 03:59:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-28 03:59:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-28 03:59:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-11-28 03:59:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-28 03:59:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-28 03:59:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-28 03:59:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-28 03:59:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-28 03:59:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-28 03:59:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-28 03:59:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-28 03:59:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-11-28 03:59:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2024-11-28 03:59:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2024-11-28 03:59:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-28 03:59:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-28 03:59:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2024-11-28 03:59:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2024-11-28 03:59:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-28 03:59:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-28 03:59:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2024-11-28 03:59:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2024-11-28 03:59:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:59:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:59:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:59:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:59:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:59:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 03:59:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 03:59:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 03:59:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 03:59:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure input_close_device [2024-11-28 03:59:56,473 INFO L138 BoogieDeclarations]: Found implementation of procedure input_close_device [2024-11-28 03:59:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2024-11-28 03:59:56,474 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2024-11-28 03:59:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2024-11-28 03:59:56,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2024-11-28 03:59:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-28 03:59:56,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-28 03:59:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_new_minor [2024-11-28 03:59:56,474 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_new_minor [2024-11-28 03:59:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:59:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-28 03:59:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-28 03:59:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:59:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_write [2024-11-28 03:59:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_write [2024-11-28 03:59:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-28 03:59:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-28 03:59:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_handle [2024-11-28 03:59:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_handle [2024-11-28 03:59:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:59:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:59:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 03:59:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 03:59:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 03:59:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 03:59:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 03:59:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 03:59:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-28 03:59:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2024-11-28 03:59:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2024-11-28 03:59:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2024-11-28 03:59:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __bad_percpu_size [2024-11-28 03:59:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mousedev [2024-11-28 03:59:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mousedev [2024-11-28 03:59:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2024-11-28 03:59:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2024-11-28 03:59:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_detach_client [2024-11-28 03:59:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_detach_client [2024-11-28 03:59:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2024-11-28 03:59:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2024-11-28 03:59:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-28 03:59:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-28 03:59:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2024-11-28 03:59:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2024-11-28 03:59:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_minor [2024-11-28 03:59:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_minor [2024-11-28 03:59:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_cleanup [2024-11-28 03:59:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_cleanup [2024-11-28 03:59:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_open_device [2024-11-28 03:59:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_open_device [2024-11-28 03:59:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_disconnect [2024-11-28 03:59:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_disconnect [2024-11-28 03:59:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_mousedev [2024-11-28 03:59:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_mousedev [2024-11-28 03:59:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-28 03:59:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-28 03:59:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-28 03:59:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-28 03:59:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:59:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:59:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:59:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:59:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:59:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 03:59:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 03:59:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 03:59:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 03:59:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:59:56,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:59:56,480 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-28 03:59:56,480 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-28 03:59:57,280 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:59:57,284 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:59:57,325 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-28 04:00:07,605 INFO L? ?]: Removed 1541 outVars from TransFormulas that were not future-live. [2024-11-28 04:00:07,605 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:00:07,638 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:00:07,639 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:00:07,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:00:07 BoogieIcfgContainer [2024-11-28 04:00:07,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:00:07,641 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:00:07,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:00:07,647 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:00:07,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:59:53" (1/3) ... [2024-11-28 04:00:07,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673564df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:00:07, skipping insertion in model container [2024-11-28 04:00:07,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:55" (2/3) ... [2024-11-28 04:00:07,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673564df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:00:07, skipping insertion in model container [2024-11-28 04:00:07,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:00:07" (3/3) ... [2024-11-28 04:00:07,649 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2024-11-28 04:00:07,676 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:00:07,680 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i that has 83 procedures, 1106 locations, 1 initial locations, 27 loop locations, and 1 error locations. [2024-11-28 04:00:07,794 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:00:07,808 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;@70ce644b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:00:07,808 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:00:07,817 INFO L276 IsEmpty]: Start isEmpty. Operand has 1042 states, 770 states have (on average 1.3792207792207791) internal successors, (1062), 805 states have internal predecessors, (1062), 203 states have call successors, (203), 68 states have call predecessors, (203), 67 states have return successors, (199), 196 states have call predecessors, (199), 199 states have call successors, (199) [2024-11-28 04:00:07,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-28 04:00:07,841 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:07,842 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:07,843 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:00:07,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:07,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1539247595, now seen corresponding path program 1 times [2024-11-28 04:00:07,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:07,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054057906] [2024-11-28 04:00:07,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:07,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:16,138 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2024-11-28 04:00:16,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:16,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054057906] [2024-11-28 04:00:16,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054057906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:16,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:16,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:16,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52224759] [2024-11-28 04:00:16,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:16,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:00:16,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:16,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:00:16,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:00:16,182 INFO L87 Difference]: Start difference. First operand has 1042 states, 770 states have (on average 1.3792207792207791) internal successors, (1062), 805 states have internal predecessors, (1062), 203 states have call successors, (203), 68 states have call predecessors, (203), 67 states have return successors, (199), 196 states have call predecessors, (199), 199 states have call successors, (199) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-28 04:00:16,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:16,933 INFO L93 Difference]: Finished difference Result 2744 states and 3927 transitions. [2024-11-28 04:00:16,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:00:16,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 244 [2024-11-28 04:00:16,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:16,970 INFO L225 Difference]: With dead ends: 2744 [2024-11-28 04:00:16,970 INFO L226 Difference]: Without dead ends: 1688 [2024-11-28 04:00:16,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:00:16,994 INFO L435 NwaCegarLoop]: 1519 mSDtfsCounter, 948 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:16,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 2882 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:00:17,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2024-11-28 04:00:17,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1673. [2024-11-28 04:00:17,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1242 states have (on average 1.3494363929146538) internal successors, (1676), 1284 states have internal predecessors, (1676), 315 states have call successors, (315), 116 states have call predecessors, (315), 115 states have return successors, (308), 303 states have call predecessors, (308), 308 states have call successors, (308) [2024-11-28 04:00:17,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2299 transitions. [2024-11-28 04:00:17,201 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2299 transitions. Word has length 244 [2024-11-28 04:00:17,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:17,203 INFO L471 AbstractCegarLoop]: Abstraction has 1673 states and 2299 transitions. [2024-11-28 04:00:17,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-28 04:00:17,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2299 transitions. [2024-11-28 04:00:17,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-28 04:00:17,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:17,209 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:17,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:00:17,211 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:00:17,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:17,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1691439925, now seen corresponding path program 1 times [2024-11-28 04:00:17,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:17,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683338976] [2024-11-28 04:00:17,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:17,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:23,924 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2024-11-28 04:00:23,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:23,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683338976] [2024-11-28 04:00:23,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683338976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:23,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:23,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:23,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595742950] [2024-11-28 04:00:23,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:23,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:00:23,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:23,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:00:23,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:00:23,932 INFO L87 Difference]: Start difference. First operand 1673 states and 2299 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-28 04:00:27,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:00:28,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:28,689 INFO L93 Difference]: Finished difference Result 4761 states and 6545 transitions. [2024-11-28 04:00:28,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:00:28,690 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), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 249 [2024-11-28 04:00:28,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:28,716 INFO L225 Difference]: With dead ends: 4761 [2024-11-28 04:00:28,717 INFO L226 Difference]: Without dead ends: 3134 [2024-11-28 04:00:28,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:00:28,726 INFO L435 NwaCegarLoop]: 2029 mSDtfsCounter, 1339 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 3422 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:28,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1339 Valid, 3422 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-11-28 04:00:28,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2024-11-28 04:00:28,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 3129. [2024-11-28 04:00:28,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 2339 states have (on average 1.3552800342026508) internal successors, (3170), 2412 states have internal predecessors, (3170), 568 states have call successors, (568), 222 states have call predecessors, (568), 221 states have return successors, (561), 552 states have call predecessors, (561), 561 states have call successors, (561) [2024-11-28 04:00:28,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 4299 transitions. [2024-11-28 04:00:28,990 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 4299 transitions. Word has length 249 [2024-11-28 04:00:28,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:28,995 INFO L471 AbstractCegarLoop]: Abstraction has 3129 states and 4299 transitions. [2024-11-28 04:00:28,995 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), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-28 04:00:28,995 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 4299 transitions. [2024-11-28 04:00:29,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-28 04:00:29,006 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:29,007 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:29,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:00:29,007 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:00:29,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:29,009 INFO L85 PathProgramCache]: Analyzing trace with hash 466243498, now seen corresponding path program 1 times [2024-11-28 04:00:29,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:29,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346239983] [2024-11-28 04:00:29,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:29,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:35,185 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2024-11-28 04:00:35,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:35,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346239983] [2024-11-28 04:00:35,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346239983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:35,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:35,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:35,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031244389] [2024-11-28 04:00:35,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:35,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:00:35,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:35,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:00:35,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:00:35,190 INFO L87 Difference]: Start difference. First operand 3129 states and 4299 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 04:00:35,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:35,906 INFO L93 Difference]: Finished difference Result 7712 states and 10543 transitions. [2024-11-28 04:00:35,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:00:35,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (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 275 [2024-11-28 04:00:35,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:35,948 INFO L225 Difference]: With dead ends: 7712 [2024-11-28 04:00:35,949 INFO L226 Difference]: Without dead ends: 4639 [2024-11-28 04:00:35,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:00:35,964 INFO L435 NwaCegarLoop]: 1442 mSDtfsCounter, 947 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 2750 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:35,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 2750 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:00:35,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2024-11-28 04:00:36,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4599. [2024-11-28 04:00:36,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4599 states, 3412 states have (on average 1.3499413833528722) internal successors, (4606), 3525 states have internal predecessors, (4606), 832 states have call successors, (832), 365 states have call predecessors, (832), 354 states have return successors, (833), 794 states have call predecessors, (833), 825 states have call successors, (833) [2024-11-28 04:00:36,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4599 states to 4599 states and 6271 transitions. [2024-11-28 04:00:36,213 INFO L78 Accepts]: Start accepts. Automaton has 4599 states and 6271 transitions. Word has length 275 [2024-11-28 04:00:36,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:36,217 INFO L471 AbstractCegarLoop]: Abstraction has 4599 states and 6271 transitions. [2024-11-28 04:00:36,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 04:00:36,217 INFO L276 IsEmpty]: Start isEmpty. Operand 4599 states and 6271 transitions. [2024-11-28 04:00:36,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-28 04:00:36,221 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:36,221 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:36,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:00:36,222 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:00:36,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:36,223 INFO L85 PathProgramCache]: Analyzing trace with hash -278409566, now seen corresponding path program 1 times [2024-11-28 04:00:36,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:36,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264459744] [2024-11-28 04:00:36,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:36,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:43,618 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2024-11-28 04:00:43,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:43,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264459744] [2024-11-28 04:00:43,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264459744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:43,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:43,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:00:43,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751439353] [2024-11-28 04:00:43,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:43,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:43,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:43,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:43,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:43,621 INFO L87 Difference]: Start difference. First operand 4599 states and 6271 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-28 04:00:47,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:01:08,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:08,118 INFO L93 Difference]: Finished difference Result 13184 states and 18171 transitions. [2024-11-28 04:01:08,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:01:08,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 278 [2024-11-28 04:01:08,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:08,180 INFO L225 Difference]: With dead ends: 13184 [2024-11-28 04:01:08,180 INFO L226 Difference]: Without dead ends: 8644 [2024-11-28 04:01:08,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:01:08,203 INFO L435 NwaCegarLoop]: 742 mSDtfsCounter, 2485 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 542 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2624 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 2339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:08,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2624 Valid, 1674 Invalid, 2339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 1796 Invalid, 1 Unknown, 0 Unchecked, 24.0s Time] [2024-11-28 04:01:08,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8644 states. [2024-11-28 04:01:08,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8644 to 8549. [2024-11-28 04:01:08,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8549 states, 6434 states have (on average 1.3588747280074605) internal successors, (8743), 6650 states have internal predecessors, (8743), 1480 states have call successors, (1480), 673 states have call predecessors, (1480), 634 states have return successors, (1540), 1367 states have call predecessors, (1540), 1468 states have call successors, (1540) [2024-11-28 04:01:08,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8549 states to 8549 states and 11763 transitions. [2024-11-28 04:01:08,729 INFO L78 Accepts]: Start accepts. Automaton has 8549 states and 11763 transitions. Word has length 278 [2024-11-28 04:01:08,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:08,730 INFO L471 AbstractCegarLoop]: Abstraction has 8549 states and 11763 transitions. [2024-11-28 04:01:08,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-28 04:01:08,730 INFO L276 IsEmpty]: Start isEmpty. Operand 8549 states and 11763 transitions. [2024-11-28 04:01:08,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-28 04:01:08,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:08,736 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:08,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:01:08,736 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:01:08,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:08,736 INFO L85 PathProgramCache]: Analyzing trace with hash -565407477, now seen corresponding path program 1 times [2024-11-28 04:01:08,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:08,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620640267] [2024-11-28 04:01:08,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:08,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:14,563 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2024-11-28 04:01:14,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:14,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620640267] [2024-11-28 04:01:14,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620640267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:14,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:14,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:01:14,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399034686] [2024-11-28 04:01:14,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:14,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:14,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:14,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:14,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:14,567 INFO L87 Difference]: Start difference. First operand 8549 states and 11763 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 04:01:14,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:14,819 INFO L93 Difference]: Finished difference Result 8551 states and 11764 transitions. [2024-11-28 04:01:14,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:14,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 279 [2024-11-28 04:01:14,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:14,878 INFO L225 Difference]: With dead ends: 8551 [2024-11-28 04:01:14,880 INFO L226 Difference]: Without dead ends: 8548 [2024-11-28 04:01:14,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:14,889 INFO L435 NwaCegarLoop]: 1434 mSDtfsCounter, 1380 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:14,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 1434 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:01:14,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8548 states. [2024-11-28 04:01:15,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8548 to 8548. [2024-11-28 04:01:15,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8548 states, 6434 states have (on average 1.3585638793907366) internal successors, (8741), 6649 states have internal predecessors, (8741), 1479 states have call successors, (1479), 673 states have call predecessors, (1479), 634 states have return successors, (1540), 1367 states have call predecessors, (1540), 1468 states have call successors, (1540) [2024-11-28 04:01:15,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8548 states to 8548 states and 11760 transitions. [2024-11-28 04:01:15,366 INFO L78 Accepts]: Start accepts. Automaton has 8548 states and 11760 transitions. Word has length 279 [2024-11-28 04:01:15,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:15,367 INFO L471 AbstractCegarLoop]: Abstraction has 8548 states and 11760 transitions. [2024-11-28 04:01:15,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 04:01:15,370 INFO L276 IsEmpty]: Start isEmpty. Operand 8548 states and 11760 transitions. [2024-11-28 04:01:15,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-28 04:01:15,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:15,376 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:15,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:01:15,377 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:01:15,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:15,377 INFO L85 PathProgramCache]: Analyzing trace with hash -348004664, now seen corresponding path program 1 times [2024-11-28 04:01:15,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:15,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832333727] [2024-11-28 04:01:15,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:15,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:21,226 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2024-11-28 04:01:21,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:21,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832333727] [2024-11-28 04:01:21,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832333727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:21,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:21,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:01:21,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307222622] [2024-11-28 04:01:21,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:21,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:21,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:21,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:21,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:21,230 INFO L87 Difference]: Start difference. First operand 8548 states and 11760 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 04:01:21,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:21,507 INFO L93 Difference]: Finished difference Result 8550 states and 11761 transitions. [2024-11-28 04:01:21,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:21,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 280 [2024-11-28 04:01:21,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:21,569 INFO L225 Difference]: With dead ends: 8550 [2024-11-28 04:01:21,569 INFO L226 Difference]: Without dead ends: 8547 [2024-11-28 04:01:21,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:21,576 INFO L435 NwaCegarLoop]: 1432 mSDtfsCounter, 1377 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:21,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 1432 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:01:21,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8547 states. [2024-11-28 04:01:22,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8547 to 8547. [2024-11-28 04:01:22,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8547 states, 6434 states have (on average 1.358253030774013) internal successors, (8739), 6648 states have internal predecessors, (8739), 1478 states have call successors, (1478), 673 states have call predecessors, (1478), 634 states have return successors, (1540), 1367 states have call predecessors, (1540), 1468 states have call successors, (1540) [2024-11-28 04:01:22,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8547 states to 8547 states and 11757 transitions. [2024-11-28 04:01:22,067 INFO L78 Accepts]: Start accepts. Automaton has 8547 states and 11757 transitions. Word has length 280 [2024-11-28 04:01:22,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:22,068 INFO L471 AbstractCegarLoop]: Abstraction has 8547 states and 11757 transitions. [2024-11-28 04:01:22,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 04:01:22,068 INFO L276 IsEmpty]: Start isEmpty. Operand 8547 states and 11757 transitions. [2024-11-28 04:01:22,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-28 04:01:22,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:22,073 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:22,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:01:22,073 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:01:22,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:22,074 INFO L85 PathProgramCache]: Analyzing trace with hash 2096520110, now seen corresponding path program 1 times [2024-11-28 04:01:22,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:22,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457619424] [2024-11-28 04:01:22,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:22,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:27,774 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2024-11-28 04:01:27,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:27,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457619424] [2024-11-28 04:01:27,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457619424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:27,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:27,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:01:27,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918812934] [2024-11-28 04:01:27,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:27,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:27,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:27,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:27,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:27,778 INFO L87 Difference]: Start difference. First operand 8547 states and 11757 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 04:01:28,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:28,085 INFO L93 Difference]: Finished difference Result 8549 states and 11758 transitions. [2024-11-28 04:01:28,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:28,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 281 [2024-11-28 04:01:28,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:28,131 INFO L225 Difference]: With dead ends: 8549 [2024-11-28 04:01:28,131 INFO L226 Difference]: Without dead ends: 8503 [2024-11-28 04:01:28,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:28,141 INFO L435 NwaCegarLoop]: 1430 mSDtfsCounter, 1374 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:28,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 1430 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:01:28,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8503 states. [2024-11-28 04:01:28,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8503 to 8501. [2024-11-28 04:01:28,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8501 states, 6404 states have (on average 1.358369768894441) internal successors, (8699), 6617 states have internal predecessors, (8699), 1469 states have call successors, (1469), 667 states have call predecessors, (1469), 627 states have return successors, (1520), 1357 states have call predecessors, (1520), 1448 states have call successors, (1520) [2024-11-28 04:01:28,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8501 states to 8501 states and 11688 transitions. [2024-11-28 04:01:28,752 INFO L78 Accepts]: Start accepts. Automaton has 8501 states and 11688 transitions. Word has length 281 [2024-11-28 04:01:28,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:28,752 INFO L471 AbstractCegarLoop]: Abstraction has 8501 states and 11688 transitions. [2024-11-28 04:01:28,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 04:01:28,753 INFO L276 IsEmpty]: Start isEmpty. Operand 8501 states and 11688 transitions. [2024-11-28 04:01:28,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-11-28 04:01:28,759 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:28,760 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:28,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:01:28,760 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:01:28,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:28,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1565622145, now seen corresponding path program 1 times [2024-11-28 04:01:28,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:28,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631428448] [2024-11-28 04:01:28,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:28,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:34,635 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2024-11-28 04:01:34,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:34,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631428448] [2024-11-28 04:01:34,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631428448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:34,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:34,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:01:34,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598380286] [2024-11-28 04:01:34,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:34,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:34,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:34,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:34,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:34,639 INFO L87 Difference]: Start difference. First operand 8501 states and 11688 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-28 04:01:38,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:01:39,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:39,539 INFO L93 Difference]: Finished difference Result 16819 states and 23128 transitions. [2024-11-28 04:01:39,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:39,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 289 [2024-11-28 04:01:39,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:39,585 INFO L225 Difference]: With dead ends: 16819 [2024-11-28 04:01:39,585 INFO L226 Difference]: Without dead ends: 8340 [2024-11-28 04:01:39,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:39,621 INFO L435 NwaCegarLoop]: 2498 mSDtfsCounter, 1264 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 3857 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:39,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1264 Valid, 3857 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 04:01:39,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8340 states. [2024-11-28 04:01:40,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8340 to 8159. [2024-11-28 04:01:40,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8159 states, 6210 states have (on average 1.3603864734299518) internal successors, (8448), 6379 states have internal predecessors, (8448), 1338 states have call successors, (1338), 617 states have call predecessors, (1338), 610 states have return successors, (1346), 1291 states have call predecessors, (1346), 1308 states have call successors, (1346) [2024-11-28 04:01:40,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8159 states to 8159 states and 11132 transitions. [2024-11-28 04:01:40,308 INFO L78 Accepts]: Start accepts. Automaton has 8159 states and 11132 transitions. Word has length 289 [2024-11-28 04:01:40,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:40,309 INFO L471 AbstractCegarLoop]: Abstraction has 8159 states and 11132 transitions. [2024-11-28 04:01:40,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-28 04:01:40,310 INFO L276 IsEmpty]: Start isEmpty. Operand 8159 states and 11132 transitions. [2024-11-28 04:01:40,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-11-28 04:01:40,319 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:40,319 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2024-11-28 04:01:40,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:01:40,319 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:01:40,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:40,320 INFO L85 PathProgramCache]: Analyzing trace with hash 629018447, now seen corresponding path program 1 times [2024-11-28 04:01:40,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:40,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739125731] [2024-11-28 04:01:40,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:40,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2024-11-28 04:01:46,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:46,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739125731] [2024-11-28 04:01:46,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739125731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:46,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:46,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:01:46,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497739390] [2024-11-28 04:01:46,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:46,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:46,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:46,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:46,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:46,039 INFO L87 Difference]: Start difference. First operand 8159 states and 11132 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-28 04:01:50,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:01:51,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:51,221 INFO L93 Difference]: Finished difference Result 21058 states and 28903 transitions. [2024-11-28 04:01:51,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:51,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 320 [2024-11-28 04:01:51,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:51,289 INFO L225 Difference]: With dead ends: 21058 [2024-11-28 04:01:51,290 INFO L226 Difference]: Without dead ends: 12959 [2024-11-28 04:01:51,318 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 [2024-11-28 04:01:51,318 INFO L435 NwaCegarLoop]: 2204 mSDtfsCounter, 1286 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:51,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 3599 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 28 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2024-11-28 04:01:51,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12959 states. [2024-11-28 04:01:51,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12959 to 12897. [2024-11-28 04:01:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12897 states, 9901 states have (on average 1.3733966266033735) internal successors, (13598), 10182 states have internal predecessors, (13598), 2049 states have call successors, (2049), 951 states have call predecessors, (2049), 946 states have return successors, (2068), 1987 states have call predecessors, (2068), 2019 states have call successors, (2068) [2024-11-28 04:01:51,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12897 states to 12897 states and 17715 transitions. [2024-11-28 04:01:51,995 INFO L78 Accepts]: Start accepts. Automaton has 12897 states and 17715 transitions. Word has length 320 [2024-11-28 04:01:51,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:51,996 INFO L471 AbstractCegarLoop]: Abstraction has 12897 states and 17715 transitions. [2024-11-28 04:01:51,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-28 04:01:51,997 INFO L276 IsEmpty]: Start isEmpty. Operand 12897 states and 17715 transitions. [2024-11-28 04:01:52,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-11-28 04:01:52,005 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:52,008 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 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] [2024-11-28 04:01:52,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:01:52,008 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:01:52,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:52,009 INFO L85 PathProgramCache]: Analyzing trace with hash 192129423, now seen corresponding path program 1 times [2024-11-28 04:01:52,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:52,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935995026] [2024-11-28 04:01:52,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:52,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:57,520 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2024-11-28 04:01:57,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:57,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935995026] [2024-11-28 04:01:57,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935995026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:57,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:57,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:01:57,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095810315] [2024-11-28 04:01:57,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:57,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:57,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:57,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:57,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:57,524 INFO L87 Difference]: Start difference. First operand 12897 states and 17715 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 04:02:01,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:02:03,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:03,042 INFO L93 Difference]: Finished difference Result 30543 states and 42085 transitions. [2024-11-28 04:02:03,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:02:03,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 330 [2024-11-28 04:02:03,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:03,237 INFO L225 Difference]: With dead ends: 30543 [2024-11-28 04:02:03,238 INFO L226 Difference]: Without dead ends: 17706 [2024-11-28 04:02:03,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:02:03,278 INFO L435 NwaCegarLoop]: 2649 mSDtfsCounter, 1332 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 4002 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:03,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1332 Valid, 4002 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 28 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2024-11-28 04:02:03,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17706 states. [2024-11-28 04:02:04,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17706 to 17644. [2024-11-28 04:02:04,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17644 states, 13597 states have (on average 1.3792748400382437) internal successors, (18754), 13990 states have internal predecessors, (18754), 2765 states have call successors, (2765), 1286 states have call predecessors, (2765), 1281 states have return successors, (2795), 2686 states have call predecessors, (2795), 2735 states have call successors, (2795) [2024-11-28 04:02:04,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17644 states to 17644 states and 24314 transitions. [2024-11-28 04:02:04,674 INFO L78 Accepts]: Start accepts. Automaton has 17644 states and 24314 transitions. Word has length 330 [2024-11-28 04:02:04,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:04,675 INFO L471 AbstractCegarLoop]: Abstraction has 17644 states and 24314 transitions. [2024-11-28 04:02:04,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 04:02:04,675 INFO L276 IsEmpty]: Start isEmpty. Operand 17644 states and 24314 transitions. [2024-11-28 04:02:04,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-28 04:02:04,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:04,692 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:04,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:02:04,692 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:02:04,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:04,693 INFO L85 PathProgramCache]: Analyzing trace with hash -17162534, now seen corresponding path program 1 times [2024-11-28 04:02:04,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:04,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596168006] [2024-11-28 04:02:04,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:04,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:10,787 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked. [2024-11-28 04:02:10,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:10,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596168006] [2024-11-28 04:02:10,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596168006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:02:10,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:02:10,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:02:10,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578300119] [2024-11-28 04:02:10,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:02:10,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:02:10,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:10,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:02:10,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:02:10,790 INFO L87 Difference]: Start difference. First operand 17644 states and 24314 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 04:02:11,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:11,933 INFO L93 Difference]: Finished difference Result 25458 states and 35140 transitions. [2024-11-28 04:02:11,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:02:11,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 367 [2024-11-28 04:02:11,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:12,031 INFO L225 Difference]: With dead ends: 25458 [2024-11-28 04:02:12,031 INFO L226 Difference]: Without dead ends: 17653 [2024-11-28 04:02:12,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:02:12,061 INFO L435 NwaCegarLoop]: 1423 mSDtfsCounter, 7 mSDsluCounter, 5675 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 7098 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:12,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 7098 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:02:12,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17653 states. [2024-11-28 04:02:12,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17653 to 17635. [2024-11-28 04:02:12,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17635 states, 13589 states have (on average 1.3789094120244316) internal successors, (18738), 13981 states have internal predecessors, (18738), 2764 states have call successors, (2764), 1286 states have call predecessors, (2764), 1281 states have return successors, (2795), 2686 states have call predecessors, (2795), 2735 states have call successors, (2795) [2024-11-28 04:02:12,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17635 states to 17635 states and 24297 transitions. [2024-11-28 04:02:12,957 INFO L78 Accepts]: Start accepts. Automaton has 17635 states and 24297 transitions. Word has length 367 [2024-11-28 04:02:12,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:12,959 INFO L471 AbstractCegarLoop]: Abstraction has 17635 states and 24297 transitions. [2024-11-28 04:02:12,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 04:02:12,959 INFO L276 IsEmpty]: Start isEmpty. Operand 17635 states and 24297 transitions. [2024-11-28 04:02:12,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-28 04:02:12,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:12,973 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2024-11-28 04:02:12,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:02:12,973 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:02:12,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:12,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1818977807, now seen corresponding path program 1 times [2024-11-28 04:02:12,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:12,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71496967] [2024-11-28 04:02:12,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:12,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:19,216 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2024-11-28 04:02:19,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:19,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71496967] [2024-11-28 04:02:19,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71496967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:02:19,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:02:19,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:02:19,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048860721] [2024-11-28 04:02:19,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:02:19,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:02:19,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:19,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:02:19,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:02:19,221 INFO L87 Difference]: Start difference. First operand 17635 states and 24297 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-28 04:02:20,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:20,056 INFO L93 Difference]: Finished difference Result 35228 states and 48543 transitions. [2024-11-28 04:02:20,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:02:20,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 376 [2024-11-28 04:02:20,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:20,142 INFO L225 Difference]: With dead ends: 35228 [2024-11-28 04:02:20,143 INFO L226 Difference]: Without dead ends: 17653 [2024-11-28 04:02:20,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:02:20,196 INFO L435 NwaCegarLoop]: 1427 mSDtfsCounter, 1415 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 2856 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:20,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1415 Valid, 2856 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:02:20,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17653 states. [2024-11-28 04:02:21,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17653 to 17633. [2024-11-28 04:02:21,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17633 states, 13587 states have (on average 1.3788179877824391) internal successors, (18734), 13985 states have internal predecessors, (18734), 2764 states have call successors, (2764), 1286 states have call predecessors, (2764), 1281 states have return successors, (2795), 2680 states have call predecessors, (2795), 2735 states have call successors, (2795) [2024-11-28 04:02:21,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17633 states to 17633 states and 24293 transitions. [2024-11-28 04:02:21,141 INFO L78 Accepts]: Start accepts. Automaton has 17633 states and 24293 transitions. Word has length 376 [2024-11-28 04:02:21,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:21,142 INFO L471 AbstractCegarLoop]: Abstraction has 17633 states and 24293 transitions. [2024-11-28 04:02:21,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-28 04:02:21,143 INFO L276 IsEmpty]: Start isEmpty. Operand 17633 states and 24293 transitions. [2024-11-28 04:02:21,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-28 04:02:21,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:21,154 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:21,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:02:21,154 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:02:21,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:21,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1603581670, now seen corresponding path program 1 times [2024-11-28 04:02:21,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:21,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963287586] [2024-11-28 04:02:21,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:21,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2024-11-28 04:02:27,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:27,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963287586] [2024-11-28 04:02:27,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963287586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:02:27,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494966716] [2024-11-28 04:02:27,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:27,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:27,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:02:27,977 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:02:27,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:02:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:34,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 4146 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:02:34,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:35,083 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked. [2024-11-28 04:02:35,084 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:02:35,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494966716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:02:35,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:02:35,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2024-11-28 04:02:35,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983776480] [2024-11-28 04:02:35,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:02:35,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:02:35,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:35,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:02:35,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:02:35,087 INFO L87 Difference]: Start difference. First operand 17633 states and 24293 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-28 04:02:36,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:36,091 INFO L93 Difference]: Finished difference Result 35366 states and 48718 transitions. [2024-11-28 04:02:36,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:02:36,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 368 [2024-11-28 04:02:36,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:36,183 INFO L225 Difference]: With dead ends: 35366 [2024-11-28 04:02:36,183 INFO L226 Difference]: Without dead ends: 17793 [2024-11-28 04:02:36,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:02:36,243 INFO L435 NwaCegarLoop]: 1426 mSDtfsCounter, 53 mSDsluCounter, 4207 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 5633 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:36,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 5633 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:02:36,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17793 states. [2024-11-28 04:02:37,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17793 to 17768. [2024-11-28 04:02:37,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17768 states, 13707 states have (on average 1.375501568541621) internal successors, (18854), 14105 states have internal predecessors, (18854), 2764 states have call successors, (2764), 1286 states have call predecessors, (2764), 1296 states have return successors, (2813), 2680 states have call predecessors, (2813), 2735 states have call successors, (2813) [2024-11-28 04:02:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17768 states to 17768 states and 24431 transitions. [2024-11-28 04:02:37,283 INFO L78 Accepts]: Start accepts. Automaton has 17768 states and 24431 transitions. Word has length 368 [2024-11-28 04:02:37,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:37,284 INFO L471 AbstractCegarLoop]: Abstraction has 17768 states and 24431 transitions. [2024-11-28 04:02:37,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-28 04:02:37,285 INFO L276 IsEmpty]: Start isEmpty. Operand 17768 states and 24431 transitions. [2024-11-28 04:02:37,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-28 04:02:37,297 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:37,297 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:37,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:02:37,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 04:02:37,498 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:02:37,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:37,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1618616872, now seen corresponding path program 1 times [2024-11-28 04:02:37,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:37,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159899248] [2024-11-28 04:02:37,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:37,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:44,570 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 850 trivial. 0 not checked. [2024-11-28 04:02:44,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:44,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159899248] [2024-11-28 04:02:44,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159899248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:02:44,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573830674] [2024-11-28 04:02:44,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:44,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:44,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:02:44,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:02:44,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:02:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:51,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 4180 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:02:51,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:52,541 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 733 trivial. 0 not checked. [2024-11-28 04:02:52,541 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:02:52,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573830674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:02:52,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:02:52,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-28 04:02:52,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047400861] [2024-11-28 04:02:52,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:02:52,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:02:52,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:52,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:02:52,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:02:52,543 INFO L87 Difference]: Start difference. First operand 17768 states and 24431 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-11-28 04:02:54,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:54,445 INFO L93 Difference]: Finished difference Result 36401 states and 50107 transitions. [2024-11-28 04:02:54,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:02:54,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 378 [2024-11-28 04:02:54,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:54,566 INFO L225 Difference]: With dead ends: 36401 [2024-11-28 04:02:54,566 INFO L226 Difference]: Without dead ends: 18237 [2024-11-28 04:02:54,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:02:54,632 INFO L435 NwaCegarLoop]: 1471 mSDtfsCounter, 51 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 4345 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:54,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 4345 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:02:54,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18237 states. [2024-11-28 04:02:55,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18237 to 18163. [2024-11-28 04:02:55,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18163 states, 14018 states have (on average 1.3712369810243972) internal successors, (19222), 14432 states have internal predecessors, (19222), 2841 states have call successors, (2841), 1290 states have call predecessors, (2841), 1303 states have return successors, (2890), 2752 states have call predecessors, (2890), 2812 states have call successors, (2890) [2024-11-28 04:02:55,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18163 states to 18163 states and 24953 transitions. [2024-11-28 04:02:55,534 INFO L78 Accepts]: Start accepts. Automaton has 18163 states and 24953 transitions. Word has length 378 [2024-11-28 04:02:55,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:55,534 INFO L471 AbstractCegarLoop]: Abstraction has 18163 states and 24953 transitions. [2024-11-28 04:02:55,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-11-28 04:02:55,535 INFO L276 IsEmpty]: Start isEmpty. Operand 18163 states and 24953 transitions. [2024-11-28 04:02:55,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-28 04:02:55,546 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:55,546 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:55,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:02:55,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:55,747 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:02:55,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:55,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1458563544, now seen corresponding path program 1 times [2024-11-28 04:02:55,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:55,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930034313] [2024-11-28 04:02:55,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:55,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:11,496 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2024-11-28 04:03:11,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:11,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930034313] [2024-11-28 04:03:11,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930034313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:11,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:11,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 04:03:11,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214394962] [2024-11-28 04:03:11,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:11,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:03:11,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:11,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:03:11,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:03:11,499 INFO L87 Difference]: Start difference. First operand 18163 states and 24953 transitions. Second operand has 15 states, 13 states have (on average 9.461538461538462) internal successors, (123), 12 states have internal predecessors, (123), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36) [2024-11-28 04:03:17,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:17,103 INFO L93 Difference]: Finished difference Result 36496 states and 50108 transitions. [2024-11-28 04:03:17,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:03:17,104 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 9.461538461538462) internal successors, (123), 12 states have internal predecessors, (123), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36) Word has length 378 [2024-11-28 04:03:17,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:17,209 INFO L225 Difference]: With dead ends: 36496 [2024-11-28 04:03:17,209 INFO L226 Difference]: Without dead ends: 18393 [2024-11-28 04:03:17,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:03:17,267 INFO L435 NwaCegarLoop]: 1413 mSDtfsCounter, 62 mSDsluCounter, 18270 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 19683 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:17,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 19683 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 04:03:17,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18393 states. [2024-11-28 04:03:18,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18393 to 18225. [2024-11-28 04:03:18,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18225 states, 14050 states have (on average 1.370391459074733) internal successors, (19254), 14456 states have internal predecessors, (19254), 2869 states have call successors, (2869), 1290 states have call predecessors, (2869), 1305 states have return successors, (2920), 2788 states have call predecessors, (2920), 2840 states have call successors, (2920) [2024-11-28 04:03:18,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18225 states to 18225 states and 25043 transitions. [2024-11-28 04:03:18,216 INFO L78 Accepts]: Start accepts. Automaton has 18225 states and 25043 transitions. Word has length 378 [2024-11-28 04:03:18,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:18,217 INFO L471 AbstractCegarLoop]: Abstraction has 18225 states and 25043 transitions. [2024-11-28 04:03:18,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 9.461538461538462) internal successors, (123), 12 states have internal predecessors, (123), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36) [2024-11-28 04:03:18,217 INFO L276 IsEmpty]: Start isEmpty. Operand 18225 states and 25043 transitions. [2024-11-28 04:03:18,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-11-28 04:03:18,223 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:18,224 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:18,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:03:18,224 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:03:18,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:18,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1024572861, now seen corresponding path program 1 times [2024-11-28 04:03:18,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:18,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628338554] [2024-11-28 04:03:18,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:18,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:25,040 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 2 proven. 56 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2024-11-28 04:03:25,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:25,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628338554] [2024-11-28 04:03:25,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628338554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:25,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70301362] [2024-11-28 04:03:25,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:25,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:25,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:25,043 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:25,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:05:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:54,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 4216 conjuncts, 82 conjuncts are in the unsatisfiable core [2024-11-28 04:05:54,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:02,065 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 853 trivial. 0 not checked. [2024-11-28 04:06:02,065 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:06:02,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70301362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:02,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:06:02,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2024-11-28 04:06:02,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589948746] [2024-11-28 04:06:02,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:02,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:06:02,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:02,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:06:02,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=462, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:06:02,068 INFO L87 Difference]: Start difference. First operand 18225 states and 25043 transitions. Second operand has 19 states, 19 states have (on average 6.684210526315789) internal successors, (127), 16 states have internal predecessors, (127), 4 states have call successors, (38), 2 states have call predecessors, (38), 5 states have return successors, (34), 7 states have call predecessors, (34), 4 states have call successors, (34) [2024-11-28 04:06:06,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:06:21,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:21,037 INFO L93 Difference]: Finished difference Result 47293 states and 65098 transitions. [2024-11-28 04:06:21,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-28 04:06:21,038 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.684210526315789) internal successors, (127), 16 states have internal predecessors, (127), 4 states have call successors, (38), 2 states have call predecessors, (38), 5 states have return successors, (34), 7 states have call predecessors, (34), 4 states have call successors, (34) Word has length 382 [2024-11-28 04:06:21,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:21,182 INFO L225 Difference]: With dead ends: 47293 [2024-11-28 04:06:21,182 INFO L226 Difference]: Without dead ends: 29088 [2024-11-28 04:06:21,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=124, Invalid=1516, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:06:21,248 INFO L435 NwaCegarLoop]: 2743 mSDtfsCounter, 1361 mSDsluCounter, 45196 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 47939 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:21,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 47939 Invalid, 777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 766 Invalid, 1 Unknown, 0 Unchecked, 12.1s Time] [2024-11-28 04:06:21,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29088 states. [2024-11-28 04:06:22,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29088 to 18245. [2024-11-28 04:06:22,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18245 states, 14068 states have (on average 1.367785044071652) internal successors, (19242), 14474 states have internal predecessors, (19242), 2871 states have call successors, (2871), 1290 states have call predecessors, (2871), 1305 states have return successors, (2922), 2790 states have call predecessors, (2922), 2842 states have call successors, (2922) [2024-11-28 04:06:22,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18245 states to 18245 states and 25035 transitions. [2024-11-28 04:06:22,193 INFO L78 Accepts]: Start accepts. Automaton has 18245 states and 25035 transitions. Word has length 382 [2024-11-28 04:06:22,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:22,193 INFO L471 AbstractCegarLoop]: Abstraction has 18245 states and 25035 transitions. [2024-11-28 04:06:22,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.684210526315789) internal successors, (127), 16 states have internal predecessors, (127), 4 states have call successors, (38), 2 states have call predecessors, (38), 5 states have return successors, (34), 7 states have call predecessors, (34), 4 states have call successors, (34) [2024-11-28 04:06:22,194 INFO L276 IsEmpty]: Start isEmpty. Operand 18245 states and 25035 transitions. [2024-11-28 04:06:22,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-11-28 04:06:22,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:22,205 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2024-11-28 04:06:22,405 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2024-11-28 04:06:22,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:06:22,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 04:06:22,416 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:06:22,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:22,417 INFO L85 PathProgramCache]: Analyzing trace with hash -881263939, now seen corresponding path program 1 times [2024-11-28 04:06:22,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:22,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349568586] [2024-11-28 04:06:22,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:22,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1097 trivial. 0 not checked. [2024-11-28 04:06:27,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:27,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349568586] [2024-11-28 04:06:27,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349568586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:27,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:27,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:06:27,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322744112] [2024-11-28 04:06:27,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:27,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:06:27,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:27,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:06:27,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:06:27,808 INFO L87 Difference]: Start difference. First operand 18245 states and 25035 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-11-28 04:06:31,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:06:33,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:33,772 INFO L93 Difference]: Finished difference Result 45278 states and 62145 transitions. [2024-11-28 04:06:33,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:06:33,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 398 [2024-11-28 04:06:33,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:33,877 INFO L225 Difference]: With dead ends: 45278 [2024-11-28 04:06:33,877 INFO L226 Difference]: Without dead ends: 27093 [2024-11-28 04:06:33,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:06:33,931 INFO L435 NwaCegarLoop]: 2221 mSDtfsCounter, 1138 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:33,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 3512 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 40 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2024-11-28 04:06:33,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27093 states. [2024-11-28 04:06:35,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27093 to 26886. [2024-11-28 04:06:35,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26886 states, 20952 states have (on average 1.3701794578083237) internal successors, (28708), 21521 states have internal predecessors, (28708), 3994 states have call successors, (3994), 1930 states have call predecessors, (3994), 1939 states have return successors, (4073), 3872 states have call predecessors, (4073), 3965 states have call successors, (4073) [2024-11-28 04:06:35,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26886 states to 26886 states and 36775 transitions. [2024-11-28 04:06:35,242 INFO L78 Accepts]: Start accepts. Automaton has 26886 states and 36775 transitions. Word has length 398 [2024-11-28 04:06:35,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:35,242 INFO L471 AbstractCegarLoop]: Abstraction has 26886 states and 36775 transitions. [2024-11-28 04:06:35,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-11-28 04:06:35,242 INFO L276 IsEmpty]: Start isEmpty. Operand 26886 states and 36775 transitions. [2024-11-28 04:06:35,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-28 04:06:35,253 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:35,253 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1] [2024-11-28 04:06:35,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:06:35,253 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:06:35,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:35,254 INFO L85 PathProgramCache]: Analyzing trace with hash -481120150, now seen corresponding path program 1 times [2024-11-28 04:06:35,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:35,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41258282] [2024-11-28 04:06:35,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:35,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:41,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2024-11-28 04:06:41,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:41,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41258282] [2024-11-28 04:06:41,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41258282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:41,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:41,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:06:41,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495155595] [2024-11-28 04:06:41,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:41,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:06:41,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:41,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:06:41,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:06:41,331 INFO L87 Difference]: Start difference. First operand 26886 states and 36775 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, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-28 04:06:42,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:42,719 INFO L93 Difference]: Finished difference Result 53630 states and 73336 transitions. [2024-11-28 04:06:42,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:06:42,720 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, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) Word has length 421 [2024-11-28 04:06:42,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:42,829 INFO L225 Difference]: With dead ends: 53630 [2024-11-28 04:06:42,829 INFO L226 Difference]: Without dead ends: 26804 [2024-11-28 04:06:42,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:06:42,900 INFO L435 NwaCegarLoop]: 1427 mSDtfsCounter, 0 mSDsluCounter, 5693 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7120 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:42,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7120 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:06:42,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26804 states. [2024-11-28 04:06:43,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26804 to 26804. [2024-11-28 04:06:43,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26804 states, 20879 states have (on average 1.3691747689065568) internal successors, (28587), 21455 states have internal predecessors, (28587), 3985 states have call successors, (3985), 1930 states have call predecessors, (3985), 1939 states have return successors, (4057), 3856 states have call predecessors, (4057), 3957 states have call successors, (4057) [2024-11-28 04:06:44,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26804 states to 26804 states and 36629 transitions. [2024-11-28 04:06:44,071 INFO L78 Accepts]: Start accepts. Automaton has 26804 states and 36629 transitions. Word has length 421 [2024-11-28 04:06:44,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:44,072 INFO L471 AbstractCegarLoop]: Abstraction has 26804 states and 36629 transitions. [2024-11-28 04:06:44,072 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, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-28 04:06:44,072 INFO L276 IsEmpty]: Start isEmpty. Operand 26804 states and 36629 transitions. [2024-11-28 04:06:44,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-11-28 04:06:44,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:44,088 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1] [2024-11-28 04:06:44,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:06:44,089 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:06:44,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:44,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1710973769, now seen corresponding path program 1 times [2024-11-28 04:06:44,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:44,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863145603] [2024-11-28 04:06:44,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:44,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2024-11-28 04:06:50,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:50,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863145603] [2024-11-28 04:06:50,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863145603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:50,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:50,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:06:50,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782717353] [2024-11-28 04:06:50,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:50,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:06:50,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:50,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:06:50,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:06:50,461 INFO L87 Difference]: Start difference. First operand 26804 states and 36629 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-28 04:06:52,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:52,094 INFO L93 Difference]: Finished difference Result 26857 states and 36705 transitions. [2024-11-28 04:06:52,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:06:52,094 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) Word has length 423 [2024-11-28 04:06:52,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:52,207 INFO L225 Difference]: With dead ends: 26857 [2024-11-28 04:06:52,207 INFO L226 Difference]: Without dead ends: 26846 [2024-11-28 04:06:52,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:06:52,224 INFO L435 NwaCegarLoop]: 1430 mSDtfsCounter, 1 mSDsluCounter, 5699 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7129 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:52,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7129 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:06:52,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26846 states. [2024-11-28 04:06:53,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26846 to 26798. [2024-11-28 04:06:53,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26798 states, 20874 states have (on average 1.3685446009389672) internal successors, (28567), 21449 states have internal predecessors, (28567), 3984 states have call successors, (3984), 1930 states have call predecessors, (3984), 1939 states have return successors, (4057), 3856 states have call predecessors, (4057), 3957 states have call successors, (4057) [2024-11-28 04:06:53,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26798 states to 26798 states and 36608 transitions. [2024-11-28 04:06:53,395 INFO L78 Accepts]: Start accepts. Automaton has 26798 states and 36608 transitions. Word has length 423 [2024-11-28 04:06:53,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:53,396 INFO L471 AbstractCegarLoop]: Abstraction has 26798 states and 36608 transitions. [2024-11-28 04:06:53,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-28 04:06:53,396 INFO L276 IsEmpty]: Start isEmpty. Operand 26798 states and 36608 transitions. [2024-11-28 04:06:53,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-28 04:06:53,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:53,413 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1] [2024-11-28 04:06:53,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:06:53,413 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:06:53,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:53,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1792107052, now seen corresponding path program 1 times [2024-11-28 04:06:53,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:53,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935966102] [2024-11-28 04:06:53,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:53,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:01,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1103 trivial. 0 not checked. [2024-11-28 04:07:01,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:01,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935966102] [2024-11-28 04:07:01,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935966102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:01,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:01,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:07:01,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542934463] [2024-11-28 04:07:01,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:01,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:07:01,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:01,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:07:01,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:07:01,452 INFO L87 Difference]: Start difference. First operand 26798 states and 36608 transitions. Second operand has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 7 states have internal predecessors, (147), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (40), 4 states have call predecessors, (40), 2 states have call successors, (40) [2024-11-28 04:07:03,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:03,105 INFO L93 Difference]: Finished difference Result 53820 states and 73495 transitions. [2024-11-28 04:07:03,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:07:03,105 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 7 states have internal predecessors, (147), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (40), 4 states have call predecessors, (40), 2 states have call successors, (40) Word has length 430 [2024-11-28 04:07:03,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:03,191 INFO L225 Difference]: With dead ends: 53820 [2024-11-28 04:07:03,192 INFO L226 Difference]: Without dead ends: 27082 [2024-11-28 04:07:03,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:07:03,251 INFO L435 NwaCegarLoop]: 1418 mSDtfsCounter, 0 mSDsluCounter, 9914 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11332 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:03,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11332 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:07:03,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27082 states. [2024-11-28 04:07:04,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27082 to 26942. [2024-11-28 04:07:04,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26942 states, 20986 states have (on average 1.366577718478986) internal successors, (28679), 21561 states have internal predecessors, (28679), 3984 states have call successors, (3984), 1930 states have call predecessors, (3984), 1971 states have return successors, (4114), 3888 states have call predecessors, (4114), 3957 states have call successors, (4114) [2024-11-28 04:07:04,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26942 states to 26942 states and 36777 transitions. [2024-11-28 04:07:04,548 INFO L78 Accepts]: Start accepts. Automaton has 26942 states and 36777 transitions. Word has length 430 [2024-11-28 04:07:04,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:04,548 INFO L471 AbstractCegarLoop]: Abstraction has 26942 states and 36777 transitions. [2024-11-28 04:07:04,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 7 states have internal predecessors, (147), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (40), 4 states have call predecessors, (40), 2 states have call successors, (40) [2024-11-28 04:07:04,548 INFO L276 IsEmpty]: Start isEmpty. Operand 26942 states and 36777 transitions. [2024-11-28 04:07:04,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-11-28 04:07:04,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:04,562 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:04,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:07:04,562 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:04,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:04,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1736861837, now seen corresponding path program 1 times [2024-11-28 04:07:04,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:04,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633134571] [2024-11-28 04:07:04,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:04,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:10,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2024-11-28 04:07:10,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:10,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633134571] [2024-11-28 04:07:10,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633134571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:10,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:10,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:07:10,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530128861] [2024-11-28 04:07:10,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:10,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:07:10,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:10,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:07:10,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:07:10,007 INFO L87 Difference]: Start difference. First operand 26942 states and 36777 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-28 04:07:14,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:07:16,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:16,218 INFO L93 Difference]: Finished difference Result 67653 states and 92031 transitions. [2024-11-28 04:07:16,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:07:16,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 431 [2024-11-28 04:07:16,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:16,369 INFO L225 Difference]: With dead ends: 67653 [2024-11-28 04:07:16,369 INFO L226 Difference]: Without dead ends: 40771 [2024-11-28 04:07:16,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:07:16,437 INFO L435 NwaCegarLoop]: 2496 mSDtfsCounter, 1190 mSDsluCounter, 3909 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 6405 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:16,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 6405 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-11-28 04:07:16,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40771 states. [2024-11-28 04:07:19,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40771 to 40236. [2024-11-28 04:07:19,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40236 states, 31296 states have (on average 1.3611643660531698) internal successors, (42599), 32173 states have internal predecessors, (42599), 5949 states have call successors, (5949), 2904 states have call predecessors, (5949), 2990 states have return successors, (6188), 5810 states have call predecessors, (6188), 5921 states have call successors, (6188) [2024-11-28 04:07:19,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40236 states to 40236 states and 54736 transitions. [2024-11-28 04:07:19,354 INFO L78 Accepts]: Start accepts. Automaton has 40236 states and 54736 transitions. Word has length 431 [2024-11-28 04:07:19,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:19,355 INFO L471 AbstractCegarLoop]: Abstraction has 40236 states and 54736 transitions. [2024-11-28 04:07:19,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-28 04:07:19,355 INFO L276 IsEmpty]: Start isEmpty. Operand 40236 states and 54736 transitions. [2024-11-28 04:07:19,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2024-11-28 04:07:19,378 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:19,378 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:19,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:07:19,378 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:19,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:19,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1770849155, now seen corresponding path program 1 times [2024-11-28 04:07:19,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:19,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129114787] [2024-11-28 04:07:19,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:19,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:25,635 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 858 trivial. 0 not checked. [2024-11-28 04:07:25,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:25,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129114787] [2024-11-28 04:07:25,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129114787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:25,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:25,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:07:25,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187159602] [2024-11-28 04:07:25,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:25,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:07:25,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:25,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:07:25,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:07:25,639 INFO L87 Difference]: Start difference. First operand 40236 states and 54736 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 04:07:27,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:27,498 INFO L93 Difference]: Finished difference Result 81702 states and 111316 transitions. [2024-11-28 04:07:27,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:07:27,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 437 [2024-11-28 04:07:27,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:27,794 INFO L225 Difference]: With dead ends: 81702 [2024-11-28 04:07:27,795 INFO L226 Difference]: Without dead ends: 41526 [2024-11-28 04:07:27,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:07:27,887 INFO L435 NwaCegarLoop]: 1436 mSDtfsCounter, 19 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2852 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:27,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2852 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:07:27,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41526 states. [2024-11-28 04:07:30,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41526 to 41040. [2024-11-28 04:07:30,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41040 states, 31998 states have (on average 1.359241202575161) internal successors, (43493), 32911 states have internal predecessors, (43493), 6051 states have call successors, (6051), 2904 states have call predecessors, (6051), 2990 states have return successors, (6290), 5876 states have call predecessors, (6290), 6023 states have call successors, (6290) [2024-11-28 04:07:30,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41040 states to 41040 states and 55834 transitions. [2024-11-28 04:07:30,560 INFO L78 Accepts]: Start accepts. Automaton has 41040 states and 55834 transitions. Word has length 437 [2024-11-28 04:07:30,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:30,560 INFO L471 AbstractCegarLoop]: Abstraction has 41040 states and 55834 transitions. [2024-11-28 04:07:30,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 04:07:30,561 INFO L276 IsEmpty]: Start isEmpty. Operand 41040 states and 55834 transitions. [2024-11-28 04:07:30,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2024-11-28 04:07:30,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:30,581 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:30,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 04:07:30,582 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:30,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:30,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1720174340, now seen corresponding path program 1 times [2024-11-28 04:07:30,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:30,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866672075] [2024-11-28 04:07:30,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:30,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:39,731 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 858 trivial. 0 not checked. [2024-11-28 04:07:39,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:39,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866672075] [2024-11-28 04:07:39,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866672075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:39,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:39,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:07:39,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308756317] [2024-11-28 04:07:39,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:39,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:07:39,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:39,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:07:39,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:07:39,733 INFO L87 Difference]: Start difference. First operand 41040 states and 55834 transitions. Second operand has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 7 states have internal predecessors, (161), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (43), 4 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 04:07:42,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:42,072 INFO L93 Difference]: Finished difference Result 82331 states and 112095 transitions. [2024-11-28 04:07:42,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:07:42,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 7 states have internal predecessors, (161), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (43), 4 states have call predecessors, (43), 2 states have call successors, (43) Word has length 438 [2024-11-28 04:07:42,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:42,255 INFO L225 Difference]: With dead ends: 82331 [2024-11-28 04:07:42,255 INFO L226 Difference]: Without dead ends: 41327 [2024-11-28 04:07:42,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:07:42,347 INFO L435 NwaCegarLoop]: 1418 mSDtfsCounter, 0 mSDsluCounter, 9904 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11322 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:42,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11322 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:07:42,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41327 states. [2024-11-28 04:07:45,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41327 to 41323. [2024-11-28 04:07:45,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41323 states, 32231 states have (on average 1.356644224504359) internal successors, (43726), 33115 states have internal predecessors, (43726), 6051 states have call successors, (6051), 2904 states have call predecessors, (6051), 3040 states have return successors, (6364), 5955 states have call predecessors, (6364), 6023 states have call successors, (6364) [2024-11-28 04:07:45,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41323 states to 41323 states and 56141 transitions. [2024-11-28 04:07:45,738 INFO L78 Accepts]: Start accepts. Automaton has 41323 states and 56141 transitions. Word has length 438 [2024-11-28 04:07:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:45,738 INFO L471 AbstractCegarLoop]: Abstraction has 41323 states and 56141 transitions. [2024-11-28 04:07:45,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 7 states have internal predecessors, (161), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (43), 4 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 04:07:45,738 INFO L276 IsEmpty]: Start isEmpty. Operand 41323 states and 56141 transitions. [2024-11-28 04:07:45,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2024-11-28 04:07:45,759 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:45,759 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:45,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 04:07:45,759 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:45,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:45,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1007357985, now seen corresponding path program 1 times [2024-11-28 04:07:45,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:45,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098964741] [2024-11-28 04:07:45,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:45,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:52,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1203 trivial. 0 not checked. [2024-11-28 04:07:52,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:52,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098964741] [2024-11-28 04:07:52,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098964741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:52,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:52,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:07:52,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483752765] [2024-11-28 04:07:52,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:52,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:07:52,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:52,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:07:52,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:07:52,988 INFO L87 Difference]: Start difference. First operand 41323 states and 56141 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 04:07:56,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:56,252 INFO L93 Difference]: Finished difference Result 83246 states and 113186 transitions. [2024-11-28 04:07:56,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:07:56,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 450 [2024-11-28 04:07:56,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:56,499 INFO L225 Difference]: With dead ends: 83246 [2024-11-28 04:07:56,499 INFO L226 Difference]: Without dead ends: 41323 [2024-11-28 04:07:56,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:07:56,603 INFO L435 NwaCegarLoop]: 1420 mSDtfsCounter, 2 mSDsluCounter, 2832 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4252 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:56,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4252 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:07:56,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41323 states. [2024-11-28 04:07:58,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41323 to 41323. [2024-11-28 04:07:58,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41323 states, 32231 states have (on average 1.354937792808166) internal successors, (43671), 33115 states have internal predecessors, (43671), 6051 states have call successors, (6051), 2904 states have call predecessors, (6051), 3040 states have return successors, (6364), 5955 states have call predecessors, (6364), 6023 states have call successors, (6364) [2024-11-28 04:07:59,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41323 states to 41323 states and 56086 transitions. [2024-11-28 04:07:59,094 INFO L78 Accepts]: Start accepts. Automaton has 41323 states and 56086 transitions. Word has length 450 [2024-11-28 04:07:59,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:59,094 INFO L471 AbstractCegarLoop]: Abstraction has 41323 states and 56086 transitions. [2024-11-28 04:07:59,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 04:07:59,095 INFO L276 IsEmpty]: Start isEmpty. Operand 41323 states and 56086 transitions. [2024-11-28 04:07:59,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2024-11-28 04:07:59,117 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:59,118 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:59,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 04:07:59,118 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:59,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:59,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1037806626, now seen corresponding path program 1 times [2024-11-28 04:07:59,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:59,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860112579] [2024-11-28 04:07:59,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:59,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:14,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2024-11-28 04:08:14,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:14,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860112579] [2024-11-28 04:08:14,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860112579] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:14,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309264429] [2024-11-28 04:08:14,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:14,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:14,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:14,079 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:14,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:08:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:41,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 4549 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:08:41,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:42,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 601 proven. 0 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2024-11-28 04:08:42,854 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:08:42,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309264429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:08:42,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:08:42,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 19 [2024-11-28 04:08:42,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339183162] [2024-11-28 04:08:42,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:08:42,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:08:42,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:42,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:08:42,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:08:42,858 INFO L87 Difference]: Start difference. First operand 41323 states and 56086 transitions. Second operand has 6 states, 5 states have (on average 34.0) internal successors, (170), 6 states have internal predecessors, (170), 3 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2024-11-28 04:08:46,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:46,669 INFO L93 Difference]: Finished difference Result 82618 states and 112145 transitions. [2024-11-28 04:08:46,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:08:46,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 34.0) internal successors, (170), 6 states have internal predecessors, (170), 3 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 452 [2024-11-28 04:08:46,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:46,874 INFO L225 Difference]: With dead ends: 82618 [2024-11-28 04:08:46,875 INFO L226 Difference]: Without dead ends: 41324 [2024-11-28 04:08:46,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:08:46,967 INFO L435 NwaCegarLoop]: 1410 mSDtfsCounter, 4 mSDsluCounter, 5616 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7026 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:46,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7026 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:08:47,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41324 states. [2024-11-28 04:08:49,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41324 to 41324. [2024-11-28 04:08:49,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41324 states, 32232 states have (on average 1.3549267808389178) internal successors, (43672), 33116 states have internal predecessors, (43672), 6051 states have call successors, (6051), 2904 states have call predecessors, (6051), 3040 states have return successors, (6364), 5955 states have call predecessors, (6364), 6023 states have call successors, (6364) [2024-11-28 04:08:49,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41324 states to 41324 states and 56087 transitions. [2024-11-28 04:08:49,457 INFO L78 Accepts]: Start accepts. Automaton has 41324 states and 56087 transitions. Word has length 452 [2024-11-28 04:08:49,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:49,457 INFO L471 AbstractCegarLoop]: Abstraction has 41324 states and 56087 transitions. [2024-11-28 04:08:49,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 34.0) internal successors, (170), 6 states have internal predecessors, (170), 3 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2024-11-28 04:08:49,458 INFO L276 IsEmpty]: Start isEmpty. Operand 41324 states and 56087 transitions. [2024-11-28 04:08:49,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-28 04:08:49,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:49,471 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:49,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:08:49,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:49,672 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:08:49,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:49,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1434921299, now seen corresponding path program 1 times [2024-11-28 04:08:49,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:49,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31736506] [2024-11-28 04:08:49,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:49,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:11,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1322 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-11-28 04:09:11,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:11,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31736506] [2024-11-28 04:09:11,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31736506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:11,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753436178] [2024-11-28 04:09:11,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:11,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:11,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:11,510 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:11,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:09:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:47,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 4684 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:09:47,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:49,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1322 backedges. 496 proven. 1 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2024-11-28 04:09:49,781 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:58,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1322 backedges. 2 proven. 81 refuted. 0 times theorem prover too weak. 1239 trivial. 0 not checked. [2024-11-28 04:09:58,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753436178] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:09:58,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:09:58,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 7, 7] total 24 [2024-11-28 04:09:58,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559791801] [2024-11-28 04:09:58,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:58,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 04:09:58,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:58,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 04:09:58,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:09:58,293 INFO L87 Difference]: Start difference. First operand 41324 states and 56087 transitions. Second operand has 24 states, 20 states have (on average 13.3) internal successors, (266), 21 states have internal predecessors, (266), 6 states have call successors, (93), 2 states have call predecessors, (93), 8 states have return successors, (92), 7 states have call predecessors, (92), 6 states have call successors, (92) [2024-11-28 04:10:02,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:10:36,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:36,905 INFO L93 Difference]: Finished difference Result 124259 states and 168428 transitions. [2024-11-28 04:10:36,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-28 04:10:36,906 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 13.3) internal successors, (266), 21 states have internal predecessors, (266), 6 states have call successors, (93), 2 states have call predecessors, (93), 8 states have return successors, (92), 7 states have call predecessors, (92), 6 states have call successors, (92) Word has length 461 [2024-11-28 04:10:36,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:37,627 INFO L225 Difference]: With dead ends: 124259 [2024-11-28 04:10:37,627 INFO L226 Difference]: Without dead ends: 82964 [2024-11-28 04:10:37,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 960 GetRequests, 913 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=176, Invalid=2080, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 04:10:37,800 INFO L435 NwaCegarLoop]: 2127 mSDtfsCounter, 1390 mSDsluCounter, 37173 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 39300 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:37,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1413 Valid, 39300 Invalid, 1693 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 1659 Invalid, 1 Unknown, 0 Unchecked, 24.8s Time] [2024-11-28 04:10:37,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82964 states. [2024-11-28 04:10:47,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82964 to 82261. [2024-11-28 04:10:47,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82261 states, 64217 states have (on average 1.354874877368921) internal successors, (87006), 65942 states have internal predecessors, (87006), 11965 states have call successors, (11965), 5752 states have call predecessors, (11965), 6078 states have return successors, (12651), 11836 states have call predecessors, (12651), 11937 states have call successors, (12651) [2024-11-28 04:10:47,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82261 states to 82261 states and 111622 transitions. [2024-11-28 04:10:48,200 INFO L78 Accepts]: Start accepts. Automaton has 82261 states and 111622 transitions. Word has length 461 [2024-11-28 04:10:48,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:48,204 INFO L471 AbstractCegarLoop]: Abstraction has 82261 states and 111622 transitions. [2024-11-28 04:10:48,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 13.3) internal successors, (266), 21 states have internal predecessors, (266), 6 states have call successors, (93), 2 states have call predecessors, (93), 8 states have return successors, (92), 7 states have call predecessors, (92), 6 states have call successors, (92) [2024-11-28 04:10:48,204 INFO L276 IsEmpty]: Start isEmpty. Operand 82261 states and 111622 transitions. [2024-11-28 04:10:48,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-11-28 04:10:48,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:48,252 INFO L218 NwaCegarLoop]: trace histogram [18, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:48,456 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2024-11-28 04:10:48,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 04:10:48,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 04:10:48,470 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:10:48,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:48,471 INFO L85 PathProgramCache]: Analyzing trace with hash -2141612826, now seen corresponding path program 1 times [2024-11-28 04:10:48,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:48,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252833887] [2024-11-28 04:10:48,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:48,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:02,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1272 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked. [2024-11-28 04:11:02,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:02,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252833887] [2024-11-28 04:11:02,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252833887] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:02,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301924894] [2024-11-28 04:11:02,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:02,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:02,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:02,551 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:02,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:11:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:42,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 5014 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 04:11:42,449 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:43,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1272 backedges. 555 proven. 22 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2024-11-28 04:11:43,410 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:51,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1272 backedges. 47 proven. 78 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked. [2024-11-28 04:11:51,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301924894] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:11:51,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:11:51,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-28 04:11:51,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027789384] [2024-11-28 04:11:51,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:51,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:11:51,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:51,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:11:51,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:11:51,471 INFO L87 Difference]: Start difference. First operand 82261 states and 111622 transitions. Second operand has 17 states, 15 states have (on average 19.066666666666666) internal successors, (286), 17 states have internal predecessors, (286), 4 states have call successors, (88), 2 states have call predecessors, (88), 7 states have return successors, (88), 5 states have call predecessors, (88), 4 states have call successors, (88) [2024-11-28 04:12:00,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:00,435 INFO L93 Difference]: Finished difference Result 164504 states and 223228 transitions. [2024-11-28 04:12:00,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:12:00,436 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 19.066666666666666) internal successors, (286), 17 states have internal predecessors, (286), 4 states have call successors, (88), 2 states have call predecessors, (88), 7 states have return successors, (88), 5 states have call predecessors, (88), 4 states have call successors, (88) Word has length 478 [2024-11-28 04:12:00,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:00,953 INFO L225 Difference]: With dead ends: 164504 [2024-11-28 04:12:00,954 INFO L226 Difference]: Without dead ends: 82269 [2024-11-28 04:12:01,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 968 GetRequests, 946 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:12:01,196 INFO L435 NwaCegarLoop]: 1411 mSDtfsCounter, 17 mSDsluCounter, 12663 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 14074 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:01,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 14074 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 04:12:01,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82269 states. [2024-11-28 04:12:07,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82269 to 82269. [2024-11-28 04:12:07,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82269 states, 64224 states have (on average 1.354851768809168) internal successors, (87014), 65949 states have internal predecessors, (87014), 11965 states have call successors, (11965), 5753 states have call predecessors, (11965), 6079 states have return successors, (12651), 11836 states have call predecessors, (12651), 11937 states have call successors, (12651) [2024-11-28 04:12:08,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82269 states to 82269 states and 111630 transitions. [2024-11-28 04:12:08,515 INFO L78 Accepts]: Start accepts. Automaton has 82269 states and 111630 transitions. Word has length 478 [2024-11-28 04:12:08,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:08,517 INFO L471 AbstractCegarLoop]: Abstraction has 82269 states and 111630 transitions. [2024-11-28 04:12:08,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 19.066666666666666) internal successors, (286), 17 states have internal predecessors, (286), 4 states have call successors, (88), 2 states have call predecessors, (88), 7 states have return successors, (88), 5 states have call predecessors, (88), 4 states have call successors, (88) [2024-11-28 04:12:08,518 INFO L276 IsEmpty]: Start isEmpty. Operand 82269 states and 111630 transitions. [2024-11-28 04:12:08,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2024-11-28 04:12:08,977 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:08,978 INFO L218 NwaCegarLoop]: trace histogram [27, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:09,184 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process [2024-11-28 04:12:09,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 137 [2024-11-28 04:12:09,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f9caff2-f3bd-408d-808a-d91082cc353f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:09,268 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:12:09,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:09,271 INFO L85 PathProgramCache]: Analyzing trace with hash -768880101, now seen corresponding path program 2 times [2024-11-28 04:12:09,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:09,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573173584] [2024-11-28 04:12:09,272 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:12:09,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms